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Localized Aviation MOS Program


Information regarding LAMP Products on the NWS server


The GFS-LAMP guidance is currently available for the cycles of: 0000, 0100, 0200, 0300, 0400, 0500, 0600, 0700, 0800, 0900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000, 2100, 2200 and 2300 UTC (LAMP now runs for each hour of the day) Guidance will be available for all cycles in the future.

The GFS LAMP station guidance is available in the following formats: ASCII text bulletin and BUFR format. The GFS LAMP gridded Thunderstorm guidance is available in GRIB2 format.

Beginning July 25, 2006, these products are being disseminated via the NWS Telecommunications Gateway to the SBN and NOAAPORT. In addition, the guidance is available on the LAMP web site

Beginning August 8, 2006, the GFS LAMP products are also be available via anonymous ftp from the NWS tgftp server. The details for retrieving the data from the NWS server can be found in the table below.

For details regarding the ASCII text product see

For details regarding the BUFR product see

For details regarding the GRIB2 products see


GFS LAMP Products available on NWS server

ftp to
username is anonymous
supply your email address for the password

set type ASCII for text data
set type binary for BUFR and GRIB2 data


Data Type

NWS server location

ASCII Text Bulletin

  • SL.us008001/DF.anf/DC.lampgfs/cy.HH.txt where HH=cycle hour
  • for web access click here


  • SL.us008001/ where HH=cycle hour
  • for web access click here


  • Thunderstorm Probabilities in a 2-hr period:

  • Thunderstorm Occurrence (Yes/No) in a 2-hr period:

  • for web access click here

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Page Last Modified: November 15 2011 15:47:59. UTC