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. 

GFS MOS Alphanumeric Text Message (MAV Bulletin)

MAV Text Products

All Stations MAV (Full Text Message) 
00Z cycle

All Stations MAV (Full Text Message) 
06Z cycle

All Stations MAV (Full Text Message) 
12Z cycle

All Stations MAV (Full Text Message) 
18Z cycle

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

Canadian Short-range MOS Min/Max Temperature Guidance

All Canadian Stations 
Most recent cycle

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.
(Ex: http://ftpprd.ncep.noaa.gov/data/nccf/com/gfs/prod/gfsmos.20161120/mdl_gfsmav.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.