Short-range GFS MOS Products

GFS-based forecast guidance from 6 to 72 hours in advance, for over 1500 stations in the United States, including Alaska and Hawaii. This message is generated four times a day, at 0000, 0600, 1200 and 1800 UTC. For details about the products, see the About MAV page. 

MAV Graphics

Attention users: Due to discontinuation of deprecated GRIB1 files used in MOS image generation, these products will be discontinued on or about Tuesday, November 5, 2019. MOS text bulletin data will continue to be available. We apologize for any inconvenience this may cause.

Data Download

Full Text Messages

MAV Full Text Messages will be available in the following directory, in the following directory/files:
gfsmos.YYYYMMDD/mdl_gfsmav.tCCz, where YYYYMMDD is the run datestamp, and CC is the cycle.

Data Product Region Format URL
MAV Full Text Messages all Text

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.

Data Product Region Format URL
MAV Raw Data all BUFR
MAV Raw Data (General Suite) CONUS GRIB
MAV Raw Data (General Suite) Alaska GRIB
MAV Raw Data (Severe Weather) CONUS GRIB

old notices

  • As of November 15, 2016, the location of the FTP site for Text Messages has moved. Please see information above to update your bookmarks!