Grib Filter nam

Available Data Dates:

nam.20260127
nam.20260126
nam.20260125
nam.20260124
nam.20260123
nam.20260122
nam.20260121
nam.20260120

Available Files (file size):

all 4LFTX ABSV ALBDO APCP BGRUN BMIXL BRTMP CAPE CCOND CD CFRZR CICE CICEP CIN CLWMR CNWAT CPOFP CRAIN CSDSF CSNOW DLWRF DPT DSWRF DZDT EVP FRICV GFLUX GUST HCDC HGT HINDEX HLCY HPBL ICEC LAND LCDC LFTX LHTFL LRGHR LTNG LWHR MAXDVV MAXREF MAXRH MAXUVV MAXUW MAXVW MCDC MCONV MINRH MSLET MSTAV MXSALB MXUPHL NCPCP PEVAP PLI PLPL POROS POT PRATE PRES PRMSL PWAT RCQ RCS RCSOL RCT REFC REFD RETOP RH RIME RLYRS RSMIN RWMR SFCR SFEXC SHTFL SMDRY SMREF SNFALB SNMR SNOD SNOHF SNOM SNOWC SOILL SOILM SOILW SOTYP SPFH SRWEQ SSRUN STRM SWHR TCDC TCLSW TCOLC TCOLI TCOLM TCOLR TCOLS TCOLW TCOND TKE TMAX TMIN TMP TSOIL UFLX UGRD ULWRF UPHL USTM USWRF VEG VFLX VGRD VGTYP VIL VIS VRATE VSTM VUCSH VVCSH VVEL VWSH WEASD WILT WTMP

all 0-0.1 m below ground 0.1-0.4 m below ground 0.4-1 m below ground 0-1 m below ground 0-2 m below ground 1-2 m below ground 3 m underground 2 m above ground 10 m above ground 80 m above ground 1000 m above ground 4000 m above ground 1000-0 m above ground 3000-0 m above ground 6000-0 m above ground 5000-2000 m above ground 0-6000 m above ground 30-0 mb above ground 60-30 mb above ground 90-0 mb above ground 90-60 mb above ground 120-90 mb above ground 150-120 mb above ground 180-0 mb above ground 180-150 mb above ground 255-0 mb above ground 305 m above mean sea level 457 m above mean sea level 610 m above mean sea level 914 m above mean sea level 1524 m above mean sea level 1829 m above mean sea level 2134 m above mean sea level 2743 m above mean sea level 3658 m above mean sea level 4572 m above mean sea level 0C isotherm 263 K level 1 hybrid level 2 hybrid level 500-1000 mb 100-1000 mb 1000 mb 975 mb 950 mb 925 mb 900 mb 875 mb 850 mb 825 mb 800 mb 775 mb 750 mb 725 mb 700 mb 675 mb 650 mb 625 mb 600 mb 575 mb 550 mb 525 mb 500 mb 475 mb 450 mb 425 mb 400 mb 375 mb 350 mb 325 mb 300 mb 275 mb 250 mb 225 mb 200 mb 175 mb 150 mb 125 mb 100 mb 75 mb 50 mb 30 mb 20 mb 10 mb surface max wind mean sea level planetary boundary layer tropopause entire atmosphere (considered as a single layer) top of atmosphere grid scale cloud bottom level grid scale cloud top level cloud base cloud ceiling low cloud layer middle cloud layer high cloud layer cloud top highest tropospheric freezing level highest top level of supercooled liquid water layer level of adiabatic condensation from sfc lowest bottom level of supercooled liquid water layer lowest level of the wet bulb zero

make subregion:	top latitude
	left longitude	right longitude
	bottom latitude

In order to not overload the server, please pause before resubmitting requests.

Click on a level name to show the variables that match that level. Variables that are specific to that level will be underlined and highlighted in yellow.
Click the checkbox to the left of a level name to select that level for the gribfilter download request.
Click the "Check Highlighted" button to check the checkbox of every underlined/highlighted level. (The levels are underlined/highlighted by clicking on a variable name.)
Check "all" to download all levels. When "all" is checked, it does not matter if any other levels are checked - all levels are included.
Note that the gribfilter download request only includes levels that are checked. Underlined/highlighted level names that are not checked are not included.
Note that some levels are not specific to any variable. To get data for these levels, click on "all" variables.

Hover over a variable abbreviation to display the full variable name.
Click on a variable name to find the levels that match that variable. Levels that are specific to that variable will be underlined and highlighted in yellow.
Click on the checkbox to the left of a variable abbreviation to select that variable for the gribfilter download request.
Click the "Check Highlighted" button to check the checkbox of every underlined/highlighted variable. (The variables are underlined/highlighted by clicking on a level name.)
Note that the gribfilter download request only includes variables that are checked. Underlined/highlighted variables that are not checked are not included in the gribfilter request.
Check "all" to download all variables. When "all" is checked, it does not matter if any other variables are checked - all variables are included in the request.
Note that some variables are not specific to any layer. To get data for these variables, click on "all" variables.

NCEP NOMADS Version 2.3.8, January 2026

NCEP NAM CONUS NEST North America Forecasts

Available Data Dates:

Available Files (file size):

Parameters

Levels

Subregion

Download

NCEP NAM CONUS NEST North America Forecasts

Available Data Dates:

Available Files (file size):

Parameters Check Highlighted Check All Parameters Uncheck All Parameters

Levels Check Highlighted Check All Levels Uncheck All Levels

Subregion

Download

Parameters

Levels