NAM (North American Mesoscale) Model Data



NAM (formerly Eta) Model Forecast Data

  • AWIPS (Advanced Weather Interactive Processing System) Grid Information

           Table of AWIPS Output Grid Information

           Map of Domain for AWIPS Grids 212/218

           Map of Domain for HIRESW Domains

           Map of AWIPS Grid 218 Tiles


  • Download NAM Data
    (via links to the NOAA EMC Web Site)

           AWIPS Grid 212  (Continental U.S. - 40km)
                     1. Open Directory = nam.YYYYMMDD
                     2. Select File-name = nam.tHHz.awip3dFF.tm00.grib2
                             YYYY = Year
                             MM = Month
                             DD = Day
                             HH = 00, 06, 12, or 18  (model run initial hour)
                             FF = 00 to 84 at 3-hr. intervals  (forecast hour)

           AWIPS Grid 218  (Continental U.S. - 12km)
                     1. Open Directory = nam.YYYYMMDD
                     2. Open Directory = tiles.tHHz
                     3. Select File-name = nam.tHHz.awip218FF.TN.grib2
                             YYYY = Year
                             MM = Month
                             DD = Day
                             HH = 00, 06, 12, or 18  (model run initial hour)
                             FF = 00 to 84 at 3-hr. intervals  (forecast hour)
                             TN = 00 to 54  (tile number)

           HIRESW  CONUS East Domain - 4km
                     1. Select File-name = eastnmm.t00z.awp4kmFF.tm00.grib2
                             FF = 00 to 48 at hourly intervals  (forecast hour)

           HIRESW  CONUS East Domain - 5km
                     1. Select File-name = eastnmm.t12z.awpregFF.tm00
                             FF = 00 to 48 at hourly intervals  (forecast hour)

           HIRESW  CONUS West Domain - 5km
                     1. Select File-name = westnmm.t06z.awpregFF.tm00
                             FF = 00 to 48 at hourly intervals  (forecast hour)

           HIRESW  Puerto Rico - ~5km
                     1. Open Directory = hiresw.YYYYMMDD
                     2. Select File-name = prnmm.tHHz.awpregFF.tm00.grib2
                             HH = 06 or 18  (model run initial hour)
                             FF = 00 to 48 at hourly intervals  (forecast hour)

           HIRESW  Alaska - 5km
                     1. Open Directory = hiresw.YYYYMMDD
                     2. Select File-name = aknmm.t00z.awpregFF.tm00.grib2
                             FF = 00 to 48 at hourly intervals  (forecast hour)

           HIRESW 250  Hawaii - ~5km
                     1. Open Directory = hiresw.YYYYMMDD
                     2. Select File-name = hinmm.tHHz.awpregFF.tm00.grib2
                             HH = 00 or 12  (model run initial hour)
                             FF = 00 to 48 at 3-hr. intervals  (forecast hour)


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~ Last updated: May 5, 2008 ~