IS0: Indicator Section

Standard

octet(s) content value meaning notes
1-4 "grib" definition 71, 82, 73, 76 'GRIB' Coded according to the International Alphabet Number 5
5-6 reserved      
7 discipline 0 meteorological  
8 grib edition number 2    
9 total length of grib message in octets varies    

 

IS1: Identification Section

Standard

octet(s) content value meaning
1-4 length of section in octets 21  
5 section number 1  
6 ID of originating center 7 National Weather Service - NCEP
8 ID of origin sub-center 14 MDL
10 GRIB master tables version number 1  
11 GRIB local tables' version number 0  
12 significance of reference time 1 start of forecast
13-14 Year varies  
15 Month varies  
16 Day varies  
17 Hour 0  
18 Minute 0  
19 Second 0  
20 Production Status of Processed data in the GRIB message 0 operational product
21 Type of processed data in this GRIB message 1 forecast products

 

tstm03

octet(s) content value meaning
1-4 length of section in octets 21  
5 section number 1  
6 ID of originating center 7 National Weather Service - NCEP
8 ID of origin sub-center 9 Storm Prediction Center
10 GRIB master tables version number 2  
11 GRIB local tables' version number 1  
12 significance of reference time 1 start of forecast
13-14 Year varies  
15 Month varies  
16 Day varies  
17 Hour 0  
18 Minute 0  
19 Second 0  
20 Production Status of Processed data in the GRIB message 1 operational test product
21 Type of processed data in this GRIB message 1 forecast products

spc_svr

octet(s) content value meaning
1-4 length of section in octets 21  
5 section number 1  
6 ID of originating center 7 National Weather Service - NCEP
8 ID of origin sub-center 9 Storm Prediction Center
10 GRIB master tables version number 1  
11 GRIB local tables' version number 1  
12 significance of reference time 1 start of forecast
13-14 Year varies  
15 Month varies  
16 Day varies  
17 Hour 0  
18 Minute 0  
19 Second 0  
20 Production Status of Processed data in the GRIB message 1 operational product
21 Type of processed data in this GRIB message 1 forecast products

 

IS2: Local Use Section

This section is not used by NBM products at this time. All octet values=0

 

IS3: Grid Definition Section

CONUS

octet(s) content value meaning notes
1-4 Length of the section 81    
5 section number 3    
6 Source of grid definition 0   Specified in Code - oct 3.13
7-10 Number of data points 3744965    
11 Number of octets for optional list of numbers defining number of points 0 grid is regular; no appended data  
12 Interpretation of list of numbers defining number of points 0 There is no appended list  
13-14 Grid definition template number 30 Lambert Conformal Can be Secant, Tangent, Conical, or Bipolar;
15 Shape of the Earth 1 Earth assumed spherical with radius specified (in m) by data producer  
16 Scale factor of radius of spherical Earth 0    
17-20 Scale value of radius of spherical Earth 6371200    
21 Scale factor of major axis of oblate spheroid Earth 255    
22-25 Scaled value of major axis of oblate spheroid Earth 255    
26 Scale factor of minor axis of oblate spheroid Earth 255    
27-30 Scaled value of minor axis of oblate spheroid Earth 255    
31-34 Nx ― number of points along the x-axis 2345    
35-38 Ny — number of points along the y-axis 1597    
39-42 La1― latitude of first grid point 19229000    
43-46 Lo1― longitude of first grid point 233723400    
47 Resolution and component flags 48 i direction increments given; j direction increments given; Resolved u and v components of vector quantities relative to easterly and northerly directions convert value to binary to read in table 3.3 (48 = 00110000)
48-51 LaD ― latitude where Dx and Dy are specified 25000000    
52-55 LoV ― longitude of meridian parallel to y-axis along which latitude increases as the y-coordinate increases 265000000    
56-59 Dx ― x-direction grid length 2539703   Grid length is in units of 10-3 m at the latitude specified by LaD
60-63 Dy ― y-direction grid length 2539703   Grid length is in units of 10-3 m at the latitude specified by LaD
64 Projection centre flag 0 North Pole is on the projection plane; Only one projection center is used convert value to binary to read in table 3.5 (0 = 00000000)
65 Scanning mode 80 Points in the first row or column scan in the +i (+x) direction. Points in the first row or column scan in the +j (+y) direction.  Adjacent points in the j (x) direction are consecutive. Adjacent rows scan in the opposite direction. convert value to binary to read in table 3.4 (64 = 01010000)
66 Latin 1 ― first latitude from the pole at which the secant cone cuts the sphere 25000000    
70 Latin 2 ― second latitude from the pole at which the secant cone cuts the sphere 25000000    
74-77 Latitude of the southern pole of projection -90   For tstm03 this =0; for all others output read=4204967296 (for non-tstorm) Doesn't seem to be a valid entry; output degrib text=0-90; perhaps it is a bug in code for read-out for -90 value (after corrections)?;
78-81 Longitude of the southern pole of projection 0    

CONUS (dryts03/dryts06/spc_svr)

octet(s) content value meaning notes
1-4 Length of the section 81    
5 section number 3    
6 Source of grid definition 0    
7-10 Number of data points 3744965    
11 Number of octets for optional list of numbers defining number of points 0 grid is regular; no appended data  
12 Interpetation of list of numbers defining number of points 0 There is no appended list  
13-14 Grid definition template number 30 Lambert Conformal  
15 Shape of the Earth 6 Earth assumed spherical with radius = 6,371,229.0  
16 Scale factor of radius of spherical Earth 0    
17-20 Scale value of radius of spherical Earth 0    
21 Scale factor of major axis of oblate spheroid Earth 0    
22-25 Scaled value of major axis of oblate spheroid Earth 0    
26 Scale factor of minor axis of oblate spheroid Earth 0    
27-30 Scaled value of minor axis of oblate spheroid Earth 0    
31-34 Nx ― number of points along the x-axis 2345    
35-38 Ny — number of points along the y-axis 1597    
39-42 La1― latitude of first grid point 19229000    
43-46 Lo1― longitude of first grid point 233723400    
47 Resolution and component flags 56 i direction increments given; j direction increments given; Resolved u and v components of vector quantities relative to the defined grid in the direction of increasing x and y (or i and j) coordinates, respectively convert value to binary to read meaning in table 3.3 (56 =00111000)
48-51 LaD ― latitude where Dx and Dy are specified 25000000    
52-55 LoV ― longitude of meridian parallel to y-axis along which latitude increases as the y-coordinate increases 265000000    
56-59 Dx ― x-direction grid length 2539703    
60-63 Dy ― y-direction grid length 2539703    
64 Projection centre flag 0 North Pole is on the projection plane; Only one projection center is used  
65 Scanning mode 64 Points in the first row or column scan in the +i (+x) direction; Points in the first row or column scan in the +j (+y) direction; Adjacent points in the i (x) direction are consecutive; All rows scan in the same direction; Points within odd rows are not offset in i(x) direction; Points within even rows are not offset in i(x) direction; Points are not offset in j(y) direction; Rows have Ni grid points and columns have Nj grid points convert value to binary to read in table 3.4 (64 = 01000000)
66 Latin 1 ― first latitude from the pole at which the secant cone cuts the sphere 25000000    
70 Latin 2 ― second latitude from the pole at which the secant cone cuts the sphere 25000000    
74-77 Latitude of the southern pole of projection 0    
78-81 Longitude of the southern pole of projection 0    

Alaska

octet(s) content value meaning notes
1-4 Length of the section 65    
5 section number 3    
6 Source of grid definition 0 Specified in Code - oct 3.13  
7-10 Number of data points 1822145    
11 Number of octets for optional list of numbers defining number of points 0 grid is regular; no appended data  
12 Interpretation of list of numbers defining number of points 0 There is no appended list  
13-14 Grid definition template number 20 Polar Stereographic  
15 Shape of the Earth 1 Earth assumed spherical with radius specified (in m) by data producer  
16 Scale factor of radius of spherical Earth 0    
17-20 Scale value of radius of spherical Earth 6371200    
21 Scale factor of major axis of oblate spheroid Earth 255    
22-25 Scaled value of major axis of oblate spheroid Earth 255    
26 Scale factor of minor axis of oblate spheroid Earth 255    
27-30 Scaled value of minor axis of oblate spheroid Earth 255    
31-24 Nx ― number of points along the x-axis 1649    
35-38 Ny ― number of points along the y-axis 1105    
39-42 La1 ― latitude of first grid point 40530000    
43-46 Lo1 ― longitude of first grid point 181429000    
47 Resolution and component flags 48 i direction increments given; j direction increments given; Resolved u and v components of vector quantities relative to easterly and northerly directions convert value to binary to read in table 3.3 (48 = 00110000)
48-51 LaD ― latitude where Dx and Dy are specified 60000000    
64 Projection centre flag 0 North Pole is on the projection plane; Only one projection center is used convert value to binary to read in table 3.5 (0 = 00000000)
65 Scanning mode 80 Points in the first row or column scan in the +i (+x) direction. Points in the first row or column scan in the +j  (+y) direction. Adjacent points in the j (x) direction are                  consecutive. Adjacent rows scan in the opposite direction.  convert value to binary to read in table 3.4 (64 = 01010000)

Hawaii

octet(s) content value meaning notes
1-4 Length of the section 72    
5 section number 3    
6 Source of grid definition 0 Specified in Code - oct 3.13  
7-10 Number of data points 350625    
11 Number of octets for optional list of numbers defining number of points 0 grid is regular; no appended data  
12 Interpretation of list of numbers defining number of points 0 There is no appended list  
13-14 Grid definition template number 10 Mercator  
15 Shape of the Earth 1 Earth assumed spherical with radius specified (in m) by data producer  
16 Scale factor of radius of spherical Earth 0    
17-20 Scale value of radius of spherical Earth 6371200    
21 Scale factor of major axis of oblate spheroid Earth 255    
22-25 Scaled value of major axis of oblate spheroid Earth 255    
26 Scale factor of minor axis of oblate spheroid Earth 255    
27-30 Scaled value of minor axis of oblate spheroid Earth 255    
31-34 Nj—number of points along a parallel 625    
35-38 Nj—number of points along a meridian 561    
39-42 La1 ― latitude of first grid point 14351500    
43-46 Lo1 ― longitude of first grid point 195030500    
47 Resolution and component flags 0 i direction increments not given, j direction increments not given, Resolved u and v components of vector quantities relative to easterly and northerly directions convert value to binary to read meaning in table 3.3
48-51 LaD — latitude(s) at which the Mercator projection intersects the Earth (Latitude(s) where Di and Dj are specified) 20000000    
52-55 La2 ― latitude of last grid point 26860500    
56-59 Lo2 — longitude of last grid point 209959800    
60 Scanning mode 64 Points in the first row or column scan in the +i (+x) direction. Points in the first row or column scan in the +j  (+y) direction. Adjacent points in the j (x) direction are consecutive. Adjacent rows scan in the opposite direction. convert value to binary to read in table 3.4 (64 = 01010000)
61-64 Orientation of the grid, angle between i direction on the map and the Equator 200000000   Limited to the range of 0 to 90 degrees; if the angle of orientation of the grid is neither 0 nor 90 degrees, Di and Dj must be equal to each other
65-68 Dj — longitudinal direction grid length 2500000   Grid lengths are in units of 10-3 m, at the latitude specified by LaD
69-72 Dj ― latitudinal direction grid length 2500000   Grid lengths are in units of 10-3 m, at the latitude specified by LaD

Puerto Rico

octet(s) content value meaning notes
1-4 Length of the section 72    
5 section number 3    
6 Source of grid definition 0 Specified in Code - oct 3.13  
7-10 Number of data points 76275    
11 Number of octets for optional list of numbers defining number of points 0 grid is regular; no appended data  
12 Interpretation of list of numbers defining number of points 0 There is no appended list  
13-14 Grid definition template number 10 Mercator  
15 Shape of the Earth 1 Earth assumed spherical with radius specified (in m) by data producer  
16 Scale factor of radius of spherical Earth 0    
17-20 Scale value of radius of spherical Earth 6371200    
21 Scale factor of major axis of oblate spheroid Earth 255    
22-25 Scaled value of major axis of oblate spheroid Earth 255    
26 Scale factor of minor axis of oblate spheroid Earth 255    
27-30 Scaled value of minor axis of oblate spheroid Earth 255    
31-34 Nj—number of points along a parallel 339    
35-38 Nj—number of points along a meridian 225    
39-42 La1 ― latitude of first grid point 16977500    
43-46 Lo1 ― longitude of first grid point 291972200    
47 Resolution and component flags 0 i direction increments not given, j direction increments not given, Resolved u and v components of vector quantities relative to easterly and northerly directions convert value to binary to read meaning in table 3.3
48-51 LaD — latitude(s) at which the Mercator projection intersects the Earth (Latitude(s) where Di and Dj are specified) 20000000    
52-55 La2 ― latitude of last grid point 19522100    
56-59 Lo2 — longitude of last grid point 296015600    
60 Scanning mode 80 Points in the first row or column scan in the +i (+x) direction. Points in the first row or column scan in the +j  (+y) direction. Adjacent points in the j (x) direction are consecutive. Adjacent rows scan in the opposite direction. convert value to binary to read in table 3.4 (64 = 01010000)
61-64 Orientation of the grid, angle between i direction on the map and the Equator 295000000   Limited to the range of 0 to 90 degrees; if the angle of orientation of the grid is neither 0 nor 90 degrees, Di and Dj must be equal to each other
65-68 Dj — longitudinal direction grid length 1250000   Grid lengths are in units of 10-3 m, at the latitude specified by LaD
69-72 Dj ― latitudinal direction grid length 1250000   Grid lengths are in units of 10-3 m, at the latitude specified by LaD

Oceanic

octet(s) content value meaning notes
1-4 Length of the section 72    
5 section number 3    
6 Source of grid definition 0 Specified in Code - oct 3.13  
7-10 Number of data points 4573389    
11 Number of octets for optional list of numbers defining number of points 0 grid is regular; no appended data  
12 Interpretation of list of numbers defining number of points 0 There is no appended list  
13-14 Grid definition template number 10 Mercator  
15 Shape of the Earth 1 Earth assumed spherical with radius specified (in m) by data producer  
16 Scale factor of radius of spherical Earth 0    
17-20 Scale value of radius of spherical Earth 6371200    
21 Scale factor of major axis of oblate spheroid Earth 255    
22-25 Scaled value of major axis of oblate spheroid Earth 255    
26 Scale factor of minor axis of oblate spheroid Earth 255    
27-30 Scaled value of minor axis of oblate spheroid Earth 255    
31-34 Nj—number of points along a parallel 2517    
35-38 Nj—number of points along a meridian 1817    
39-42 La1 ― latitude of first grid point -30419200    
43-46 Lo1 ― longitude of first grid point 129905800    
47 Resolution and component flags 48 i direction increments given, j direction increments given, Resolved u and v components of vector quantities relative to easterly and northerly directions convert value to binary to read meaning in table 3.3
48-51 LaD — latitude(s) at which the Mercator projection intersects the Earth (Latitude(s) where Di and Dj are specified) 20000000    
52-55 La2 ― latitude of last grid point 80383000    
56-59 Lo2 — longitude of last grid point 10689200    
60 Scanning mode 80 Points in the first row or column scan in the +i (+x) direction. Points in the first row or column scan in the +j  (+y) direction. Adjacent points in the j (x) direction are  consecutive. Adjacent rows scan in the opposite direction. convert value to binary to read in table 3.4 (64 = 01010000)
61-64 Orientation of the grid, angle between i direction on the map and the Equator 0   Limited to the range of 0 to 90 degrees; if the angle of orientation of the grid is neither 0 nor 90 degrees, Di and Dj must be equal to each other
65-68 Dj — longitudinal direction grid length 10000000   Grid lengths are in units of 10-3 m, at the latitude specified by LaD
69-72 Dj ― latitudinal direction grid length 10000000   Grid lengths are in units of 10-3 m, at the latitude specified by LaD

Global

octet(s) content value meaning notes
1-4 Length of the section 72    
5 section number 3    
6 Source of grid definition 0 Specified in Code - oct 3.13  
7-10 Number of data points 639999    
11 Number of octets for optional list of numbers defining number of points 0 grid is regular; no appended data  
12 Interpretation of list of numbers defining number of points 0 There is no appended list  
13-14 Grid definition template number 10 Mercator  
15 Shape of the Earth 1 Earth assumed spherical with radius specified (in m) by data producer  
16 Scale factor of radius of spherical Earth 0    
17-20 Scale value of radius of spherical Earth 6371200    
21 Scale factor of major axis of oblate spheroid Earth 255    
22-25 Scaled value of major axis of oblate spheroid Earth 255    
26 Scale factor of minor axis of oblate spheroid Earth 255    
27-30 Scaled value of minor axis of oblate spheroid Earth 255    
31-34 Nj—number of points along a parallel 801    
35-38 Nj—number of points along a meridian 799    
39-42 La1 ― latitude of first grid point -85000000    
43-46 Lo1 ― longitude of first grid point 180000000    
47 Resolution and component flags 48 i direction increments given, j direction increments given, Resolved u and v components of vector quantities relative to easterly and northerly directions convert value to binary to read meaning in table 3.3
48-51 LaD — latitude(s) at which the Mercator projection intersects the Earth (Latitude(s) where Di and Dj are specified) 0    
52-55 La2 ― latitude of last grid point 84999900    
56-59 Lo2 — longitude of last grid point 179717600    
60 Scanning mode 80 Points in the first row or column scan in the +i (+x) direction. Points in the first row or column scan in the +j  (+y) direction. Adjacent points in the j (x) direction are  consecutive. Adjacent rows scan in the opposite direction. convert value to binary to read in table 3.4 (64 = 01010000)
61-64 Orientation of the grid, angle between i direction on the map and the Equator 0   Limited to the range of 0 to 90 degrees; if the angle of orientation of the grid is neither 0 nor 90 degrees, Di and Dj must be equal to each other
65-68 Dj — longitudinal direction grid length 50000000   Grid lengths are in units of 10-3 m, at the latitude specified by LaD
69-72 Dj ― latitudinal direction grid length 50000000   Grid lengths are in units of 10-3 m, at the latitude specified by LaD

 

IS4: Product Definition Section

 

appt

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 21 Apparent Temperature : K : APTMP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

blend_awcdas_cldlayer_1_base

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 11 Cloud Base : m : CDCB  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 0    
14 Analysis or forecast generating process identified 105 Rapid Refresh (RAP)  
15-16 Hours of observational data cutoff after reference time 0    
17 Minutes of observational data cutoff after reference time 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 195 Reserved for Local Use  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

blend_awcdas_cldlayer_1_coverage

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 1 Total Cloud Cover : % : TCDC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 0    
14 Analysis or forecast generating process identified 105 Rapid Refresh (RAP)  
15-16 Hours of observational data cutoff after reference time 0    
17 Minutes of observational data cutoff after reference time 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 195 Reserved for Local Use  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

blend_awcdas_cldlayer_1_top

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 12 Cloud Top : m : CDCTOP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 0    
14 Analysis or forecast generating process identified 105 Rapid Refresh (RAP)  
15-16 Hours of observational data cutoff after reference time 0    
17 Minutes of observational data cutoff after reference time 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 195 Reserved for Local Use  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

blend_awcdas_cldlayer_2_base

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 11 Cloud Base : m : CDCB  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 0    
14 Analysis or forecast generating process identified 105 Rapid Refresh (RAP)  
15-16 Hours of observational data cutoff after reference time 0    
17 Minutes of observational data cutoff after reference time 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 196 Reserved for Local Use  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

blend_awcdas_cldlayer_2_coverage

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 1 Total Cloud Cover : % : TCDC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 0    
14 Analysis or forecast generating process identified 105 Rapid Refresh (RAP)  
15-16 Hours of observational data cutoff after reference time 0    
17 Minutes of observational data cutoff after reference time 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 196 Reserved for Local Use  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

blend_awcdas_cldlayer_2_top

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 12 Cloud Top : m : CDCTOP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 0    
14 Analysis or forecast generating process identified 105 Rapid Refresh (RAP)  
15-16 Hours of observational data cutoff after reference time 0    
17 Minutes of observational data cutoff after reference time 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 196 Reserved for Local Use  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

blend_awcdas_cldlayer_3_base

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 11 Cloud Base : m : CDCB  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 0    
14 Analysis or forecast generating process identified 105 Rapid Refresh (RAP)  
15-16 Hours of observational data cutoff after reference time 0    
17 Minutes of observational data cutoff after reference time 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 197 Reserved for Local Use  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

blend_awcdas_cldlayer_3_coverage

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 1 Total Cloud Cover : % : TCDC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 0    
14 Analysis or forecast generating process identified 105 Rapid Refresh (RAP)  
15-16 Hours of observational data cutoff after reference time 0    
17 Minutes of observational data cutoff after reference time 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 197 Reserved for Local Use  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

blend_awcdas_cldlayer_3_top

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 12 Cloud Top : m : CDCTOP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 0    
14 Analysis or forecast generating process identified 105 Rapid Refresh (RAP)  
15-16 Hours of observational data cutoff after reference time 0    
17 Minutes of observational data cutoff after reference time 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 197 Reserved for Local Use  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

blend_awcdas_prominent_cldlayer_above_FL250_base

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 11 Cloud Base : m : CDCB  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 0    
14 Analysis or forecast generating process identified 105 Rapid Refresh (RAP)  
15-16 Hours of observational data cutoff after reference time 0    
17 Minutes of observational data cutoff after reference time 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 234 High cloud layer  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

blend_awcdas_prominent_cldlayer_above_FL250_coverage

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 1 Total Cloud Cover : % : TCDC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 0    
14 Analysis or forecast generating process identified 105 Rapid Refresh (RAP)  
15-16 Hours of observational data cutoff after reference time 0    
17 Minutes of observational data cutoff after reference time 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 234 High cloud layer  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

cape

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 7 Thermodynamic Stability indicies  
11 Parameter number 6 Convective Available Potential Energy : J kg-1 : CAPE  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

capesd

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 7 Thermodynamic Stability indicies  
11 Parameter number 6 Convective Available Potential Energy : J kg-1 : CAPE  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 2 Standard Deviation with respect to Cluster Mean  
36 Number of forecasts in the ensemble 255    

cig

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 13 Ceiling : m : CEIL  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 215 Cloud ceiling  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

cigp_lt1000

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 13 Ceiling : m : CEIL  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 108 Localized Aviation MOS Program (LAMP)  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 215 Cloud ceiling  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 3    
36 Total number of forecast probabilities 7    
37 Probability type 0 Probability of event below lower limit  
38 Scale factor of threshold lower limit 2    
39-42 Scaled value of threshold lower limit 30480    
43 Scale factor of threshold upper limit -127    
44-47 Scaled value of threshold upper limit 255    

cigp_lt2000

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 13 Ceiling : m : CEIL  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 108 Localized Aviation MOS Program (LAMP)  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 215 Cloud ceiling  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 4    
36 Total number of forecast probabilities 7    
37 Probability type 0 Probability of event below lower limit  
38 Scale factor of threshold lower limit 2    
39-42 Scaled value of threshold lower limit 60960    
43 Scale factor of threshold upper limit -127    
44-47 Scaled value of threshold upper limit 255    

cigp_lt500

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 13 Ceiling : m : CEIL  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 108 Localized Aviation MOS Program (LAMP)  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 215 Cloud ceiling  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 2    
36 Total number of forecast probabilities 7    
37 Probability type 0 Probability of event below lower limit  
38 Scale factor of threshold lower limit 2    
39-42 Scaled value of threshold lower limit 15240    
43 Scale factor of threshold upper limit -127    
44-47 Scaled value of threshold upper limit 255    

cigp_lte3000

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 13 Ceiling : m : CEIL  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 108 Localized Aviation MOS Program (LAMP)  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 215 Cloud ceiling  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 5    
36 Total number of forecast probabilities 7    
37 Probability type 0 Probability of event below lower limit  
38 Scale factor of threshold lower limit 2    
39-42 Scaled value of threshold lower limit 91450    
43 Scale factor of threshold upper limit -127    
44-47 Scaled value of threshold upper limit 255    

cigp_lte6500

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 13 Ceiling : m : CEIL  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 108 Localized Aviation MOS Program (LAMP)  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 215 Cloud ceiling  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 6    
36 Total number of forecast probabilities 7    
37 Probability type 0 Probability of event below lower limit  
38 Scale factor of threshold lower limit 2    
39-42 Scaled value of threshold lower limit 201168    
43 Scale factor of threshold upper limit -127    
44-47 Scaled value of threshold upper limit 255    

cldbse

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 13 Ceiling : m : CEIL  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 2 Cloud Base Level  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

cwasp

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 239 Craven-Wiedenfeld Aggregate Severe Parameter : Numeric : CWASP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 241 Reserved for Local Use  
36 Number of forecasts in the ensemble 241    

cwasp_XXp

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 239 Craven-Wiedenfeld Aggregate Severe Parameter : Numeric : CWASP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    

cwasp_prbXX

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 239 Craven-Wiedenfeld Aggregate Severe Parameter : Numeric : CWASP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 50    

cwasp_prb65

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 239 Craven-Wiedenfeld Aggregate Severe Parameter : Numeric : CWASP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 65,70,75,85    

dewp

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 6 Dew Point Temperature : K : DPT  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

dewpsd

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 6 Dew Point Temperature : K : DPT  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 2 Standard Deviation with respect to Cluster Mean  
36 Number of forecasts in the ensemble 255    

dryts03

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 237 Dry Thunderstorm Probability : % : DRYTPROB  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 0    
14 Forecast generating process identifier 113 Products from NCEP SREF processing  
15-16 Hours after reference time data cutoff 0    
17 Minutes after reference time data cutoff 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 0    
36 Total number of forecast probabilities 21    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 0    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 0    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 3    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

dswrf

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 4 Short-wave radiation  
11 Parameter number 7 Downward Short-Wave Radiation Flux : W m-2 : DSWRF  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

dswrf_analysis

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 4 Short-wave radiation  
11 Parameter number 7 Downward Short-Wave Radiation Flux : W m-2 : DSWRF  
12 Type of generating process 0 Analysis  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

echotop

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 16 Forecast Radar Imagery  
11 Parameter number 3 Echo Top : m : RETOP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 3 Level of Cloud Tops  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

ellrod

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 238 Ellrod Index : unknown : ELLINX  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 40000    
29 Type of second fixed surface 100 Isobaric Surface : Pa  
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 30000    

flaticeXX

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 228 Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 1,6,24,48,72    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

frzspray

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 3 Surface Properties  
11 Parameter number 204 Freezing Spray : unknown : FRZSPR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

gust_cdf-50p

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 22 Wind Speed (Gust) : m s-1 : GUST  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 10    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 50    

haines_analysis

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 4 Fire Weather Products  
11 Parameter number 2 Haines Index : Numeric : HINDEX  
12 Type of generating process 0 Analysis  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 200 Entire atmosphere (considered as a single layer)  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 241 Reserved for Local Use  
36 Number of forecasts in the ensemble 241    

hgt_250mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 3 Mass  
11 Parameter number 5 Geopotential Height : gpm : HGT  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 25000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

hgt_500mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 3 Mass  
11 Parameter number 5 Geopotential Height : gpm : HGT  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 50000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

hgt_700mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 3 Mass  
11 Parameter number 5 Geopotential Height : gpm : HGT  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 70000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

hgt_850mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 3 Mass  
11 Parameter number 5 Geopotential Height : gpm : HGT  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 85000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

hgt_925mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 3 Mass  
11 Parameter number 5 Geopotential Height : gpm : HGT  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 92500    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

hgtsd_500mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 3 Mass  
11 Parameter number 5 Geopotential Height : gpm : HGT  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 50000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 2 Standard Deviation with respect to Cluster Mean  
36 Number of forecasts in the ensemble 100    

hgtsd_700mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 3 Mass  
11 Parameter number 5 Geopotential Height : gpm : HGT  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 70000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 2 Standard Deviation with respect to Cluster Mean  
36 Number of forecasts in the ensemble 100    

ice06_XXp

octet(s) content value meaning notes
1-4 length of section in octets 59    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 10 Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 228 Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by previous octet varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    
36-37 Year of end of overall time interval varies    
38 Month of end of overall time interval varies    
39 Day of end of overall time overall time interval varies    
40 Hour of end of overall time interval varies    
41 Minute of end of overall time interval varies    
42 Second of end of overall time interval varies    
43 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
44-47 Total number of data values missing in the statistical process 0    
48 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
49 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
50 Indicator of unit of time range over which statistical processing is done 1 Hour  
51-54 Length of the time range over which statistical processing is done, in units defined by the previous octet 6    
55 Indicator of unit of time for the increment between the successive fields used 1 Hour  
56-59 Time increment between successive fields, in units defined by the previous octet 6    

ice24_XXp

octet(s) content value meaning notes
1-4 length of section in octets 59    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 10 Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 228 Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by previous octet varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    
36-37 Year of end of overall time interval varies    
38 Month of end of overall time interval varies    
39 Day of end of overall time overall time interval varies    
40 Hour of end of overall time interval varies    
41 Minute of end of overall time interval varies    
42 Second of end of overall time interval varies    
43 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
44-47 Total number of data values missing in the statistical process 0    
48 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
49 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
50 Indicator of unit of time range over which statistical processing is done 1 Hour  
51-54 Length of the time range over which statistical processing is done, in units defined by the previous octet 24    
55 Indicator of unit of time for the increment between the successive fields used 1 Hour  
56-59 Time increment between successive fields, in units defined by the previous octet 24    

ice48_XXp

octet(s) content value meaning notes
1-4 length of section in octets 59    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 10 Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 228 Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by previous octet varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    
36-37 Year of end of overall time interval varies    
38 Month of end of overall time interval varies    
39 Day of end of overall time overall time interval varies    
40 Hour of end of overall time interval varies    
41 Minute of end of overall time interval varies    
42 Second of end of overall time interval varies    
43 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
44-47 Total number of data values missing in the statistical process 0    
48 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
49 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
50 Indicator of unit of time range over which statistical processing is done 1 Hour  
51-54 Length of the time range over which statistical processing is done, in units defined by the previous octet 48    
55 Indicator of unit of time for the increment between the successive fields used 1 Hour  
56-59 Time increment between successive fields, in units defined by the previous octet 48    

ice72_XXp

octet(s) content value meaning notes
1-4 length of section in octets 59    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 10 Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 228 Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by previous octet varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    
36-37 Year of end of overall time interval varies    
38 Month of end of overall time interval varies    
39 Day of end of overall time overall time interval varies    
40 Hour of end of overall time interval varies    
41 Minute of end of overall time interval varies    
42 Second of end of overall time interval varies    
43 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
44-47 Total number of data values missing in the statistical process 0    
48 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
49 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
50 Indicator of unit of time range over which statistical processing is done 1 Hour  
51-54 Length of the time range over which statistical processing is done, in units defined by the previous octet 72    
55 Indicator of unit of time for the increment between the successive fields used 1 Hour  
56-59 Time increment between successive fields, in units defined by the previous octet 72    

iceXXprb001

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 228 Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 3    
44-47 Scaled value of threshold upper limit 254    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6,24,4872    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

iceXXprb010

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 228 Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 2    
44-47 Scaled value of threshold upper limit 254    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6,24,48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

iceXXprb025

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 228 Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 2    
44-47 Scaled value of threshold upper limit 635    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6,24,48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

iceXXprb050

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 228 Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 1    
44-47 Scaled value of threshold upper limit 127    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6,24,48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

iceXXprb100

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 228 Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 1    
44-47 Scaled value of threshold upper limit 254    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6,24,48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

icec

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Ice  
11 Parameter number 0 Ice Cover : Proportion : ICEC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

icetk

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Ice  
11 Parameter number 1 Ice Thickness : m : ICETK  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

llturb

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 10 Turbulence : (See Table 4.208 for units) : TURB  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 103 Specified Height Level Above Ground : m  
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 1372    

llwsdir

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 103 Specified Height Level Above Ground : m  
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 610    

llwshgt

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 3 Mass  
11 Parameter number 6 Geometric Height : m : DIST  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 103 Specified Height Level Above Ground : m  
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 610    

llwsspd

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 103 Specified Height Level Above Ground : m  
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 610    

maxffwi

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 4 Fire Weather Products  
11 Parameter number 4 Fosberg Index : Numeric : FOSINDX  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 2 Maximum  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 6    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

maxhi

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 4 Fire Weather Products  
11 Parameter number 2 Haines Index : Numeric : HINDEX  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 200 Entire atmosphere (considered as a single layer)  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 2 Maximum  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 6    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

maxref

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 16 Forecast Radar Imagery  
11 Parameter number 198 Hourly Maximum of Simulated Reflectivity : dB : MAXREF  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 1000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 2 Maximum  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

maxrh

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 27 Maximum Relative Humidity : % : MAXRH  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 2 Maximum  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 12    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

maxt

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 0 Temperature  
11 Parameter number 4 Maximum Temperature : K : TMAX  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 2 Maximum  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 12    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

maxtsd

octet(s) content value meaning notes
1-4 length of section in octets 60    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 12 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer, in a continuous or non-continuous time interval  
10 Parameter category 0 Temperature  
11 Parameter number 4 Maximum Temperature : K : TMAX  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 2 Standard Deviation with respect to Cluster Mean  
36 Number of forecasts in the ensemble 255    
37-38 Year of end of overall time interval varies    
39 Month of end of overall time interval varies    
40 Day of end of overall time overall time interval varies    
41 Hour of end of overall time interval varies    
42 Minute of end overall time interval varies    
43 Second of end of overall time interval varies    
44 nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
45-48 Total number of data values missing in the statistical process 0    
49 Statistical process used to calculate the processed field from the field at each time increment during the time range 2 Maximum  
50 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
51 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
52-55 Length of the time range over which statistical processing is done, in units defined by the previous octet 12    
56 Indicator of unit of time for the increment between the successive fields used 1 Hour  
57-60 Time increment between successive fields, in units defined by the previous octet 0    

minrh

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 198 Minimum Relative Humidity : % : MINRH  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 3 Minimum  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 12    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

mint

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 0 Temperature  
11 Parameter number 5 Minimum Temperature : K : TMIN  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 3 Minimum  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 12    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

mintsd

octet(s) content value meaning notes
1-4 length of section in octets 60    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 12 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer, in a continuous or non-continuous time interval  
10 Parameter category 0 Temperature  
11 Parameter number 5 Minimum Temperature : K : TMIN  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 2 Standard Deviation with respect to Cluster Mean  
36 Number of forecasts in the ensemble 255    
37-38 Year of end of overall time interval varies    
39 Month of end of overall time interval varies    
40 Day of end of overall time overall time interval varies    
41 Hour of end of overall time interval varies    
42 Minute of end overall time interval varies    
43 Second of end of overall time interval varies    
44 nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
45-48 Total number of data values missing in the statistical process 0    
49 Statistical process used to calculate the processed field from the field at each time increment during the time range 3 Minimum  
50 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
51 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
52-55 Length of the time range over which statistical processing is done, in units defined by the previous octet 12    
56 Indicator of unit of time for the increment between the successive fields used 1 Hour  
57-60 Time increment between successive fields, in units defined by the previous octet 0    

mixhgt

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 3 Mixed Layer Depth : m : MIXHT  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 200 Entire atmosphere (considered as a single layer)  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

mixhgt_analysis

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 3 Mixed Layer Depth : m : MIXHT  
12 Type of generating process 0 Analysis  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 200 Entire atmosphere (considered as a single layer)  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

mslp_cdf-XXp

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 3 Mass  
11 Parameter number 1 Pressure Reduced to MSL : Pa : PRMSL  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 101 Mean Sea Level  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 10,25,50,75,90    

pdur

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 234 Precipitation Duration : hour : PCPDUR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 12    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

pop01

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 8 Total Precipitation : kg m-2 : APCP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 3    
44-47 Scaled value of threshold upper limit 254    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

pop06

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 8 Total Precipitation : kg m-2 : APCP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 3    
44-47 Scaled value of threshold upper limit 254    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

pop12

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 8 Total Precipitation : kg m-2 : APCP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 3    
44-47 Scaled value of threshold upper limit 254    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 12    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

prb0p25frzn

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 53 Total Snowfall Rate Water Equivalent : kg m-2 s-1 : TSRWE  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 7    
44-47 Scaled value of threshold upper limit 735    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 24    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

predomwx

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 226 Predominant Weather : Numeric : PWTHER  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 0 Reserved  
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

prfzrn

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 19 Precipitation Type : (See Table 4.201 for units) : PTYPE  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 1    
36 Total number of forecast probabilities 1    
37 Probability type 2 Probability of event between upper and lower limits (the range includes lower limit but not the upper limit)  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 3    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 4    

prrain

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 19 Precipitation Type : (See Table 4.201 for units) : PTYPE  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 1    
36 Total number of forecast probabilities 1    
37 Probability type 2 Probability of event between upper and lower limits (the range includes lower limit but not the upper limit)  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 1    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 2    

prsleet

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 19 Precipitation Type : (See Table 4.201 for units) : PTYPE  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 1    
36 Total number of forecast probabilities 1    
37 Probability type 2 Probability of event between upper and lower limits (the range includes lower limit but not the upper limit)  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 8    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 9    

prsnow

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 19 Precipitation Type : (See Table 4.201 for units) : PTYPE  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 1    
36 Total number of forecast probabilities 1    
37 Probability type 2 Probability of event between upper and lower limits (the range includes lower limit but not the upper limit)  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 5    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 7    

ptstm01

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 2 Thunderstorm Probability : % : TSTM  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

ptstm03

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 2 Thunderstorm Probability : % : TSTM  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 3    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

ptstm06

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 2 Thunderstorm Probability : % : TSTM  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 6    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

ptstm12

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 2 Thunderstorm Probability : % : TSTM  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 12    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

qmd_qpf01

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 8 Total Precipitation : kg m-2 : APCP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

qpf01

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 8 Total Precipitation : kg m-2 : APCP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

qpf06

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 8 Total Precipitation : kg m-2 : APCP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 6    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

rh

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 1 Relative Humidity : % : RH  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

rh_250mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 1 Relative Humidity : % : RH  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 25000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

rh_500mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 1 Relative Humidity : % : RH  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 50000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

rh_700mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 1 Relative Humidity : % : RH  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 70000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

rh_850mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 1 Relative Humidity : % : RH  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 85000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

rh_925mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 1 Relative Humidity : % : RH  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 92500    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

sigwv

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Waves  
11 Parameter number 3 Significant Height of Combined Wind Waves and Swell : m : HTSGW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

sigwv_XXp

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Waves  
11 Parameter number 3 Significant Height of Combined Wind Waves and Swell : m : HTSGW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 10,50,90    

sigwvsd

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Waves  
11 Parameter number 3 Significant Height of Combined Wind Waves and Swell : m : HTSGW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 2 Standard Deviation with respect to Cluster Mean  
36 Number of forecasts in the ensemble 255    

sky

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 1 Total Cloud Cover : % : TCDC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

skysd

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 6 Cloud  
11 Parameter number 1 Total Cloud Cover : % : TCDC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 2 Standard Deviation with respect to Cluster Mean  
36 Number of forecasts in the ensemble 255    

slr_05p

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 233 Snow Liquid ratio : kg kg-1 : SNOWLR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    

slrblend

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 1 Moisture  
11 Parameter number 233 Snow Liquid ratio : kg kg-1 : SNOWLR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

snow01

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

snow01_XXp

octet(s) content value meaning notes
1-4 length of section in octets 59    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 10 Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by previous octet varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    
36-37 Year of end of overall time interval varies    
38 Month of end of overall time interval varies    
39 Day of end of overall time overall time interval varies    
40 Hour of end of overall time interval varies    
41 Minute of end of overall time interval varies    
42 Second of end of overall time interval varies    
43 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
44-47 Total number of data values missing in the statistical process 0    
48 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
49 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
50 Indicator of unit of time range over which statistical processing is done 1 Hour  
51-54 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
55 Indicator of unit of time for the increment between the successive fields used 1 Hour  
56-59 Time increment between successive fields, in units defined by the previous octet 1    

snow01prb003

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 5    
44-47 Scaled value of threshold upper limit 762    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snow01prb005

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 5    
44-47 Scaled value of threshold upper limit 1270    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snow01prb007

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 5    
44-47 Scaled value of threshold upper limit 1778    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snow01prb015

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 381    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snow01prb020

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 508    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snow01prb025

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 635    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snow06

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 6    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

snow06_XXp

octet(s) content value meaning notes
1-4 length of section in octets 59    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 10 Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by previous octet varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    
36-37 Year of end of overall time interval varies    
38 Month of end of overall time interval varies    
39 Day of end of overall time overall time interval varies    
40 Hour of end of overall time interval varies    
41 Minute of end of overall time interval varies    
42 Second of end of overall time interval varies    
43 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
44-47 Total number of data values missing in the statistical process 0    
48 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
49 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
50 Indicator of unit of time range over which statistical processing is done 1 Hour  
51-54 Length of the time range over which statistical processing is done, in units defined by the previous octet 6    
55 Indicator of unit of time for the increment between the successive fields used 1 Hour  
56-59 Time increment between successive fields, in units defined by the previous octet 6    

snowXXprb030

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1,6 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 762    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snow06prb050

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 1270    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snow24

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 24    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

snow24_XXp

octet(s) content value meaning notes
1-4 length of section in octets 59    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 10 Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by previous octet varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    
36-37 Year of end of overall time interval varies    
38 Month of end of overall time interval varies    
39 Day of end of overall time overall time interval varies    
40 Hour of end of overall time interval varies    
41 Minute of end of overall time interval varies    
42 Second of end of overall time interval varies    
43 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
44-47 Total number of data values missing in the statistical process 0    
48 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
49 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
50 Indicator of unit of time range over which statistical processing is done 1 Hour  
51-54 Length of the time range over which statistical processing is done, in units defined by the previous octet 24    
55 Indicator of unit of time for the increment between the successive fields used 1 Hour  
56-59 Time increment between successive fields, in units defined by the previous octet 24    

snowXXprb001

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 5    
44-47 Scaled value of threshold upper limit 254    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1,6,24    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snowXXprb100

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 2540    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6,24    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snow48

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 48    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

snow48_XXp

octet(s) content value meaning notes
1-4 length of section in octets 59    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 10 Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by previous octet varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    
36-37 Year of end of overall time interval varies    
38 Month of end of overall time interval varies    
39 Day of end of overall time overall time interval varies    
40 Hour of end of overall time interval varies    
41 Minute of end of overall time interval varies    
42 Second of end of overall time interval varies    
43 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
44-47 Total number of data values missing in the statistical process 0    
48 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
49 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
50 Indicator of unit of time range over which statistical processing is done 1 Hour  
51-54 Length of the time range over which statistical processing is done, in units defined by the previous octet 48    
55 Indicator of unit of time for the increment between the successive fields used 1 Hour  
56-59 Time increment between successive fields, in units defined by the previous octet 48    

snowXXprb020

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 508    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1,6,24,48    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snow72

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 72    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

snow72_XXp

octet(s) content value meaning notes
1-4 length of section in octets 59    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 10 Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by previous octet varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    
36-37 Year of end of overall time interval varies    
38 Month of end of overall time interval varies    
39 Day of end of overall time overall time interval varies    
40 Hour of end of overall time interval varies    
41 Minute of end of overall time interval varies    
42 Second of end of overall time interval varies    
43 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
44-47 Total number of data values missing in the statistical process 0    
48 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
49 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
50 Indicator of unit of time range over which statistical processing is done 1 Hour  
51-54 Length of the time range over which statistical processing is done, in units defined by the previous octet 72    
55 Indicator of unit of time for the increment between the successive fields used 1 Hour  
56-59 Time increment between successive fields, in units defined by the previous octet 72    

snowXXprb010

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 254    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1,6,24,48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snowXXprb040

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 1016    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1,6,24,48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snowXXprb060

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 1524    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6,24,48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snowXXprb080

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 2032    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6,24,48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snowXXprb120

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 3048    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 6,24,48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snowXXprb180

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 4572    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 24,48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snowXXprb240

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 6096    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 24,48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snowXXprb300

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 7620    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snowXXprb360

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 4    
44-47 Scaled value of threshold upper limit 9144    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 48,72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snow72prb480

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 1 Moisture  
11 Parameter number 29 Total Snowfall : m : ASNOW  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identifier 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 255    
36 Total number of forecast probabilities 255    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit -127    
39-42 Scaled value of threshold lower limit 255    
43 Scale factor of threshold upper limit 3    
44-47 Scaled value of threshold upper limit 1219    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 72    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

snowlvl

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 236 Snow Level : m : SNOWLVL  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 102 Specific Altitude Above Mean Sea Level : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

snowlvl_XXp

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 236 Snow Level : m : SNOWLVL  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 5,10,25,50,75,90,95    

snowlvl_analysis

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 236 Snow Level : m : SNOWLVL  
12 Type of generating process 0 Analysis  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 102 Specific Altitude Above Mean Sea Level : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

spc_post_hail24hr

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 198 Hail probability : % : HAILPROB  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 0    
14 Forecast generating process identifier 0 Reserved  
15-16 Hours after reference time data cutoff 0    
17 Minutes after reference time data cutoff 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 0    
36 Total number of forecast probabilities 21    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 0    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 0    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 24    
67 Indicator of unit of time for the increment between the successive fields used 255    
68-71 Time increment between successive fields, in units defined by the previous octet 0    

spc_post_hail4hr

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 198 Hail probability : % : HAILPROB  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 0    
14 Forecast generating process identifier 0 Reserved  
15-16 Hours after reference time data cutoff 0    
17 Minutes after reference time data cutoff 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 0    
36 Total number of forecast probabilities 21    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 0    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 0    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 4    
67 Indicator of unit of time for the increment between the successive fields used 255    
68-71 Time increment between successive fields, in units defined by the previous octet 0    

spc_post_thunder1hr

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 2 Thunderstorm Probability : % : TSTM  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 0    
14 Forecast generating process identifier 0 Reserved  
15-16 Hours after reference time data cutoff 0    
17 Minutes after reference time data cutoff 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 0    
36 Total number of forecast probabilities 21    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 0    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 0    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
67 Indicator of unit of time for the increment between the successive fields used 255    
68-71 Time increment between successive fields, in units defined by the previous octet 0    

spc_post_thunder4hr

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 2 Thunderstorm Probability : % : TSTM  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 0    
14 Forecast generating process identifier 0 Reserved  
15-16 Hours after reference time data cutoff 0    
17 Minutes after reference time data cutoff 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 0    
36 Total number of forecast probabilities 21    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 0    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 0    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 4    
67 Indicator of unit of time for the increment between the successive fields used 255    
68-71 Time increment between successive fields, in units defined by the previous octet 0    

spc_post_tor24hr

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 197 Tornado probability : % : TORPROB  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 0    
14 Forecast generating process identifier 0 Reserved  
15-16 Hours after reference time data cutoff 0    
17 Minutes after reference time data cutoff 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 0    
36 Total number of forecast probabilities 21    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 0    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 0    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 24    
67 Indicator of unit of time for the increment between the successive fields used 255    
68-71 Time increment between successive fields, in units defined by the previous octet 0    

spc_post_tor4hr

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 197 Tornado probability : % : TORPROB  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 0    
14 Forecast generating process identifier 0 Reserved  
15-16 Hours after reference time data cutoff 0    
17 Minutes after reference time data cutoff 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 0    
36 Total number of forecast probabilities 21    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 0    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 0    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 4    
67 Indicator of unit of time for the increment between the successive fields used 255    
68-71 Time increment between successive fields, in units defined by the previous octet 0    

spc_post_wind24hr

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 199 Wind probability : % : WINDPROB  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 0    
14 Forecast generating process identifier 0 Reserved  
15-16 Hours after reference time data cutoff 0    
17 Minutes after reference time data cutoff 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 0    
36 Total number of forecast probabilities 21    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 0    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 0    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 24    
67 Indicator of unit of time for the increment between the successive fields used 255    
68-71 Time increment between successive fields, in units defined by the previous octet 0    

spc_post_wind4hr

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 199 Wind probability : % : WINDPROB  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 0    
14 Forecast generating process identifier 0 Reserved  
15-16 Hours after reference time data cutoff 0    
17 Minutes after reference time data cutoff 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 0    
36 Total number of forecast probabilities 21    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 0    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 0    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 4    
67 Indicator of unit of time for the increment between the successive fields used 255    
68-71 Time increment between successive fields, in units defined by the previous octet 0    

spc_sref_dryts03

octet(s) content value meaning notes
1-4 length of section in octets 71    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 9 Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 237 Dry Thunderstorm Probability : % : DRYTPROB  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 0    
14 Forecast generating process identifier 113 Products from NCEP SREF processing  
15-16 Hours after reference time data cutoff 0    
17 Minutes after reference time data cutoff 0    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 0    
36 Total number of forecast probabilities 21    
37 Probability Type 1 Probability of event above upper limit  
38 Scale factor of threshold lower limit 0    
39-42 Scaled value of threshold lower limit 0    
43 Scale factor of threshold upper limit 0    
44-47 Scaled value of threshold upper limit 0    
48-49 Year of end of overall time interval varies    
50 Month of end of overall time interval varies    
51 Day of end of overall time interval varies    
52 Hour of end of overall time interval varies    
53 Minute of end of overall time interval varies    
54 Second of end of overall time interval varies    
55 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
56-59 Total number of data values missing in the statistical process 0    
60 Statistical process used to calculate the processed field from the field at each time increment during the time range 1 Accumulation  
61 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
62 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
63-66 Length of the time range over which statistical processing is done, in units defined by the previous octet 3    
67 Indicator of unit of time for the increment between the successive fields used 1 Hour  
68-71 Time increment between successive fields, in units defined by the previous octet 0    

sst

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 0 Temperature : K : TMP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

sst_cdf-50p

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 0 Temperature : K : TMP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

temp

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 0 Temperature : K : TMP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

temp_cdf-50p

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 0 Temperature : K : TMP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 50    

tempsd

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 0 Temperature : K : TMP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 2    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 2 Standard Deviation with respect to Cluster Mean  
36 Number of forecasts in the ensemble 255    

tmp_250mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 0 Temperature : K : TMP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 25000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

tmp_500mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 0 Temperature : K : TMP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 50000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

tmp_700mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 0 Temperature : K : TMP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 70000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

tmp_850mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 0 Temperature : K : TMP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 85000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

tmp_925mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 0 Temperature : K : TMP  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 92500    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

trwdir

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 226 Transport Wind Direction : Deg : TRWDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 200 Entire atmosphere (considered as a single layer)  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

trwdir_analysis

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 226 Transport Wind Direction : Deg : TRWDIR  
12 Type of generating process 0 Analysis  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 200 Entire atmosphere (considered as a single layer)  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

trwspd

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 225 Transport Wind Speed : m s-1 : TRWSPD  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 200 Entire atmosphere (considered as a single layer)  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

trwspd_analysis

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 225 Transport Wind Speed : m s-1 : TRWSPD  
12 Type of generating process 0 Analysis  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 200 Entire atmosphere (considered as a single layer)  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

tstm_coverage

octet(s) content value meaning notes
1-4 length of section in octets 58    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 8 Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval  
10 Parameter category 6 Cloud  
11 Parameter number 10 Thunderstorm Coverage : (See Table 4.204 for units) : THUNC  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 10 Entire Atmosphere  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35-36 YearTime of end of overall time interval varies    
37 MonthTime of end of overall time interval varies    
38 DayTime of end of overall time interval varies    
39 HourTime of end of overall time interval varies    
40 MinuteTime of end of overall time interval varies    
41 SecondTime of end of overall time interval varies    
42 number of time ranges specifications describing the time intervals used to calculate the statistically-processed field 1    
43-46 Total number of data values missing in statistical process 0    
47 Statistical process used to calculate the processed field from the field at each time increment during the time range 255    
48 Type of time increment between successive fields used in the statistical processing 2 Successive times processed have same start time of forecast, forecast time is incremented.  
49 Indicator of unit of time for time range over which statistical processing is done 1 Hour  
50-53 Length of the time range over which statistical processing is done, in units defined by the previous octet 1    
54 Indicator of unit of time for the increment between the successive fields used 1 Hour  
55-58 Time increment between successive fields, in units defined by the previous octet 0    

vil

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 15 Radar  
11 Parameter number 3 Vertically-Integrated Liquid Water : kg m-2 : VIL  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 10 Entire Atmosphere  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

vis

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 0 Visibility : m : VIS  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

vis_cdf-50p

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 0 Visibility : m : VIS  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 50    

visp_lt1

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 0 Visibility : m : VIS  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 108 Localized Aviation MOS Program (LAMP)  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 2    
36 Total number of forecast probabilities 6    
37 Probability type 0 Probability of event below lower limit  
38 Scale factor of threshold lower limit 2    
39-42 Scaled value of threshold lower limit 160934    
43 Scale factor of threshold upper limit -127    
44-47 Scaled value of threshold upper limit 255    

visp_lt2

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 0 Visibility : m : VIS  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 108 Localized Aviation MOS Program (LAMP)  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 3    
36 Total number of forecast probabilities 6    
37 Probability type 0 Probability of event below lower limit  
38 Scale factor of threshold lower limit 2    
39-42 Scaled value of threshold lower limit 321869    
43 Scale factor of threshold upper limit -127    
44-47 Scaled value of threshold upper limit 255    

visp_lt3

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 0 Visibility : m : VIS  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 108 Localized Aviation MOS Program (LAMP)  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 4    
36 Total number of forecast probabilities 6    
37 Probability type 0 Probability of event below lower limit  
38 Scale factor of threshold lower limit 2    
39-42 Scaled value of threshold lower limit 482803    
43 Scale factor of threshold upper limit -127    
44-47 Scaled value of threshold upper limit 255    

visp_lte5

octet(s) content value meaning notes
1-4 length of section in octets 47    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 5 Probability forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 19 Physical atmospheric properties  
11 Parameter number 0 Visibility : m : VIS  
12 Type of generating process 5 Probability Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 108 Localized Aviation MOS Program (LAMP)  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Forecast probability number 5    
36 Total number of forecast probabilities 6    
37 Probability type 0 Probability of event below lower limit  
38 Scale factor of threshold lower limit 2    
39-42 Scaled value of threshold lower limit 804673    
43 Scale factor of threshold upper limit -127    
44-47 Scaled value of threshold upper limit 255    

vrate

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 224 Ventilation Rate : m2 s-1 : VRATE  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 200 Entire atmosphere (considered as a single layer)  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

vrate_analysis

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 224 Ventilation Rate : m2 s-1 : VRATE  
12 Type of generating process 0 Analysis  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 200 Entire atmosphere (considered as a single layer)  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

wbgt

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 0 Temperature  
11 Parameter number 206 Wet Bulb Globe Temperature : K : WETGLBT  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 1 Ground or Water Surface  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 0    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

wdir

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 10    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

wdir_tropical_blend

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 231 Tropical Wind Direction : ° : TPWDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 10    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

wdir30

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 30    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface -127    
31-34 Scaled value of second fixed surface -2147483647    

wdir30_cdf-50p

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 30    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface -127    
31-34 Scaled value of second fixed surface -2147483647    
35 Percentile value 50    

wdir80

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 80    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface -127    
31-34 Scaled value of second fixed surface -2147483647    

wdir80_cdf-50p

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 80    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface -127    
31-34 Scaled value of second fixed surface -2147483647    
35 Percentile value 50    

wdir_250mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 25000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

wdir_500mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 50000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

wdir_700mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 70000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

wdir_850mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 85000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

wdir_925mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 92500    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

wdir_cdf-XXp

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 0 Wind Direction (from which blowing) : ° : WDIR  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 10    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 50,75,90    

wgust

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 22 Wind Speed (Gust) : m s-1 : GUST  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 10    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

wgustsd

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 22 Wind Speed (Gust) : m s-1 : GUST  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 10    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 2 Standard Deviation with respect to Cluster Mean  
36 Number of forecasts in the ensemble 255    

wind_250mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 25000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

wind_500mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 50000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

wind_700mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 70000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

wind_850mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 85000    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

wind_925mb

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 100 Isobaric Surface : Pa  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 92500    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 255    
36 Number of forecasts in the ensemble 100    

wspd

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 10    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

wspd_tropical_blend

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 232 Tropical Wind Speed : m s-1 : TPWSPD  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 10    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

wspd10_cdf-XXp

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 10    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 10,25,50,75,90    

wspd30

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 30    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

wspd30_cdf-50p

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 30    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 50    

wspd80

octet(s) content value meaning notes
1-4 length of section in octets 34    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 0 Analysis or forecast at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Analysis or forecast generating process identified 104 National Blend GRIB  
15-16 Hours of observational data cutoff after reference time 65535    
17 Minutes of observational data cutoff after reference time 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 80    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    

wspd80_cdf-50p

octet(s) content value meaning notes
1-4 length of section in octets 35    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 6 Percentile forecasts at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 80    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Percentile value 50    

wspdsd

octet(s) content value meaning notes
1-4 length of section in octets 36    
5 section number 4    
6-7 Number of coordinate values after template 0 no vertical discretization has occured for this data  
8-9 product template 2 Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time  
10 Parameter category 2 Momentum  
11 Parameter number 1 Wind Speed : m s-1 : WIND  
12 Type of generating process 2 Forecast  
13 Background generating process identifier 255    
14 Forecast generating process identified 104 National Blend GRIB  
15-16 Hours after reference time data cutoff 65535    
17 Minutes after reference time data cutoff 255    
18 Indicator of unit of time range 1 Hour  
19-22 Forecast time in units defined by octet 18 varies    
23 Type of first fixed surface 103 Specified Height Level Above Ground : m  
24 Scale factor of first fixed surface 0    
25-28 Scaled value of first fixed surface 10    
29 Type of second fixed surface 255    
30 Scale factor of second fixed surface 0    
31-34 Scaled value of second fixed surface 0    
35 Derived forecast 2 Standard Deviation with respect to Cluster Mean  
36 Number of forecasts in the ensemble 255    

 

IS5: Data Representation Section

Standard (all except tstm03 / tstm06)

octet(s) content value meaning notes
1-4 length of section in octets 49    
5 section number 5    
6-9 "Number of data points where one or more values are specified in Section 7 when a bit map is present; total number of data points when a bit map is absent" varies by grid (see IS3)   3744965 (co); 1822145(ak); 76275(pr); 350625(hi); 4573389(oc)
10-11 template number 3 Grid Point Data - Complex Packing and Spatial Differencing  
12-15 Reference value (R) (IEEE 32-bit floating-point value) varies    
16-17 Binary scale factor (E) varies   usually stable by element: vis=7; cig/cldbse/snowlevel=3;
appt/dewp/mxwbalft/temp/wgust/wspd=2;
negengy/pop12/posengy/ppi/prfzrn/probiceprsnt/probrefzslt/
prrain/prsleet/prsnow/qpf01/qpf06/rh/sky/slrblend/wdir=0
18-19 Decimal scale factor (D) varies   usually stable by element; usually 0 or 1; qpf01/qpf06=3; wdir=4294967295
20 Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing varies    
21 Type of original field values 0 Floating Point  
22 Group splitting method used 1 General Group Splitting  
23 Missing value management used 1 Primary missing values included within the data values  
24-27 Primary missing value substitute 9999    
28-31 Secondary missing value substitute 0    
32-35 NG ― number of groups of data values into which field is split varies    
36 Reference for group widths varies   usually 0 - 1
37 Number of bits used for the group widths (value after - oct 5.36) varies    
38-41 Reference for group lengths 1   may vary; probrefzslt has value 2147483647
42 Length increment for the group lengths 1   may vary
43-46 True length of last group varies    
47 Number of bits used for the scaled group lengths (after - oct5.38 and % by oct5.42) varies    
48 Order of spatial difference 2 Second-Order Spatial Differencing  
49 Number of octets required in the data section to specify extra descriptors needed for spatial differencing (octets 6-ww in data template 7.3) varies   usually 1-2

tstm03 / tstm06

octet(s) content value meaning notes
1-4 length of section in octets 21    
5 section number 5    
6-9 "Number of data points where one or more values are specified in Section 7 when a bit map is present; total number of data points when a bit map is absent" 1943462 (tstm03); 3744965 (tstm06)    tstm03 dooes not match other conus products; tstm06 matches other conus products
10-11 template number 0 Grid Point Data - Complex Packing and Spatial Differencing  
12-15 Reference value (R) (IEEE 32-bit floating-point value) varies    
16-17 Binary scale factor (E) 0   may vary
18-19 Decimal scale factor (D) 0   may vary
20 Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing varies    
21 Type of original field values 0 Floating Point  

 

IS6: Bit Map Section

Standard (all except tstm03 / tstm06)

octet(s) content value meaning notes
1-4 length of section in octets 6    
5 section number 6    
6 bitmap indicator 255 A bit map does not apply to this product  

tstm03 / tstm06

octet(s) content value meaning notes
1-4 length of section in octets 6    
5 section number 6    
6 bitmap indicator 0 A bit map applies to this product and is specified in this section  
7+   0   All values = 0 

 

IS7: Data Section

Standard (all except tstm03 / tstm06)

octet(s) content value meaning notes
1-4 length of section in octets varies    
5 section number 7    
6+ data 0   in a format described by data Template 7.X, where X is the data representation template number in octet 5.10

tstm03 / tstm06

octet(s) content value meaning notes
1-4 length of section in octets varies    
5 section number 7    
6+ data 0   in a format described by data Template 7.X, where X is the data representation template number in octet 5.10

 

IS8: End Section

All

octet(s) content value meaning notes
1-4   7777 [END]

Coded according to the International Alphabet Number 5.