LAMP Change Log - MDL
GFS-LAMP Changes
Dates are "dates of completion".
| VERSION | DATE | CYCLE | CHANGES | IMPACT |
|---|---|---|---|---|
| September 28, 2010 |
|
MDL adds Gridded LAMP guidance for temperature, dewpoint, ceiling height, and visibility forecasts and observations. For more information see Public Information Statement soliciting comments through November 30, 2010 for Experimental Gridded LAMP Products. | NWS server data Web Graphics |
|
| February 9, 2010 |
|
MDL removes 18 stations from the LAMP guidance and modifies the ID call letters for 3 sites. For more information see Announcement of LAMP Station Removal and Modification. | LAV Text Bulletins BUFR Guidance Web Graphics |
|
| February 10, 2009 |
|
MDL adds a graphic depicting probabilities and thresholds to the web page. For more information see Announcement of New Web Graphic. | Web Graphics | |
| November 12, 2008 |
0800 UTC 1400 UTC 2000 UTC |
MDL adds four additional cycles to the GFS-LAMP system. For more information see TIN 08-82. | Additional cycles | |
| June 24, 2008 |
1700 UTC 2200 UTC 2300 UTC |
MDL adds four additional cycles to the GFS-LAMP system. For more information see TIN 08-44. | Additional cycles | |
| April 08, 2008 |
0700 UTC 1300 UTC 1900 UTC |
MDL adds four additional cycles to the GFS-LAMP system. For more information see TIN 08-14. | Additional cycles | |
| January 15, 2008 |
0500 UTC 0800 UTC 1100 UTC 1400 UTC 1700 UTC 2100 UTC 2300 UTC |
MDL discontinues the NGM LAMP guidance on the web page and NWS FTP server. For more information see TIN 07-94. | NGM LAMP Product Removed | |
| September 26, 2007 |
0500 UTC 1000 UTC 1100 UTC |
MDL adds four additional cycles to the GFS-LAMP system. For more information see TIN 07-48. | Additional cycles | |
| September 11, 2007 |
0300 UTC 0600 UTC 0900 UTC 1200 UTC 1500 UTC 1800 UTC 2100 UTC |
An update to the GFS-MOS (TIN 07-42) including the addition of new stations to visibility, obstruction to vision, and probability of precipitation characteristic guidance will impact certain GFS-LAMP elements. Effective 9/11/07, there will be GFS-LAMP forecast guidance at additional stations for visibility, obstruction to vision, conditional visibility, and precipitation characteristics. This will alter the GFS-LAMP BUFR Product and add lines to the GFS-LAMP Text Bulletin (LAV). Please refer to this change notice. | Visibility Obstruction to Vision Conditional Visibility Precipitation Characteristics |
|
| June 29, 2007 |
|
Updated LAMP BUFR documentation to correct an error in the description of conditional visibility categories. Please refer to this updated document (pdf). | Documentation | |
| May 23, 2007 |
0600 UTC 1200 UTC 1800 UTC |
Corrected a problem with the thunderstorm graphics for the new GFS LAMP cycles implemented 5/9/2007. There was a bug in how the guidance for some projections was being displayed. This fix required changing the thunderstorm guidance graphics page from a shtml formatted page to a php formatted page, which necessitated a change in the URL. | Web Thunderstorm Graphics | |
| May 16, 2007 |
|
Updated graphical Station Plots to display station guidance for Temperature, Dewpoint, and Wind Direction. | Web | |
| May 9, 2007 |
0600 UTC 1200 UTC 1800 UTC |
MDL adds four additional cycles and 69 stations to the GFS-LAMP system. For more information see TIN 07-13. | Additional cycles Additional stations |
|
| February 27, 2007 |
|
GFS LAMP FAQ and new station plots will be available. | Web | |
| November 27, 2006 |
|
MDL updates the GFS-LAMP meteogram display to group related forecast elements together for a more logical and useful display. This change is cosmetic only. | Cosmetic | |
| August 28, 2006 |
|
New current and verified meteograms will be available. Please refer to this change notice. | Web | |
| August 23, 2006 |
|
MDL fixes to a problem with the GFS LAMP categorizations of the precipitation characteristics (drizzle, continuous, and showers) in BUFR format. Please refer to this change notice. | Precipitation Characteristics | |
| August 15, 2006 |
|
MDL updates the GFS-LAMP 15z summer thunderstorm equations and thresholds to correct an apparent instability problem that can occur under certain conditions. | Thunderstorms | |
| August 15, 2006 |
|
MDL updates the GFS-LAMP wind equations to utilize the latest observational and GFS-MOS data. | Winds | |
| August 8, 2006 |
|
GFS-LAMP Data available on the NWS FTP server. Please refer to this change notice. | FTP server | |
| August 3, 2006 |
|
MDL fixes problem with GFS-LAMP Thunderstorm Product. Please refer to this change notice. | Thunderstorms | |
| July 25, 2006 |
0900 UTC 1500 UTC 2100 UTC |
GFS-LAMP becomes operational at NCEP beginning with the 1500 UTC cycle. | Operational Availability | |
| July 20, 2006 |
|
MDL adds additional cycle to the GFS-LAMP system. Please refer to this change notice. | Additional Cycle | |
| June 06, 2006 |
|
MDL adds ptype for Alaskan Warm Season. Please refer to this change notice. | Precipitation Type | |
| June 05, 2006 |
|
MDL adds an additional cycle to the GFS-LAMP system. Please refer to this change notice. | Additional Cycle | |
| May 08, 2006 |
|
MDL adds GFS-LAMP Thunderstorm Guidance for these additional cycles. Please refer to this change notice. | Thunderstorms - Additional Cycle | |
| May 01, 2006 |
|
MDL adds an additional cycle to the GFS-LAMP systems. Please refer to this change notice. | Additional Cycle | |
| March 15, 2006 |
|
MDL adds GFS-LAMP Thunderstorm Guidance. Please refer to this change notice. | Addition - Thunderstorms | |
| January 23, 2006 |
|
MDL adds GFS-LAMP Guidance. Please refer to this change notice. | Initial Cycle |