GFS-based forecast guidance from 24 to 192 hours in advance, for over 1600 stations in the United States, including Alaska and Hawaii. This message is created twice a day, at 0000 and 1200 UTC. For more information, please see the About MEX page. 

GFS MOS Alphanumeric Text Message (MEX Bulletin)

MEX Text Products

All Stations MEX (Full Text Message) 
00Z cycle

All Stations MEX (Full Text Message) 
12Z cycle

MOS Bulletins By State, List, or Individual Station
All cycles

Canadian Extended-range MOS Min/Max Temperature Guidance

All Canadian Stations 
Most recent cycle

Full Text Messages

MEX Full Text Messages will be available in the following directory, in the following directory/files:
gfsmos.YYYYMMDD/mdl_gfsmex.tCCz, where YYYYMMDD is the run datestamp, and CC is the cycle.
(Ex: http://ftpprd.ncep.noaa.gov/data/nccf/com/gfs/prod/gfsmos.20161120/mdl_gfsmex.t00z)

Canadian Extended-range MOS Min/Max Temperature Guidance will be available in the follwing directory/files:
gfsmos.YYYYMMDD/mdl_fecn21.tCCz, where YYYYMMDD is the run datestamp, and CC is the cycle.
(Ex: http://ftpprd.ncep.noaa.gov/data/nccf/com/gfs/prod/gfsmos.20161120/mdl_fecn21.t00z)

Other Data

Messages can be found on NWS FTP Server (TGFTP). On this server, GRIB files are stored in directories called RD.YYYYMMDD, where YYYYMMDD is the year, month and day. Within the RD.YYYYMMDD directory, the files will be named cy.XX.txt, where XX is the cycle. These data will be available for two days.