Grib Filter nam

Available Data Dates:

nam.20261027
nam.20261026
nam.20261025
nam.20261024
nam.20261023
nam.20261022
nam.20261021
nam.20261020

Available Files (file size):

all 4LFTX ABSV ACPCP ALBDO APCP BMIXL CAPE CD CFRZR CICEP CIN CNWAT CRAIN CSNOW DLWRF DPT DSWRF DZDT FRICV GUST HGT HINDEX HLCY HPBL ICEC LAND LFTX LHTFL LTNG MAXRH MAXUW MAXVW MINRH MSLET MSTAV PLI POROS PRES PRMSL PWAT REFC REFD RETOP RH RLYRS SFCR SHTFL SMDRY SMREF SNOD SNOWC SOILL SOILM SOILW SOTYP SPFH TCDC TKE TMAX TMIN TMP TSOIL UGRD ULWRF USWRF VEG VGRD VGTYP VIS VRATE VUCSH VVCSH VVEL WEASD WILT

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 0.33-1 sigma layer 3 m underground 2 m above ground 10 m above ground 80 m above ground 1000 m above ground 4000 m above ground 3000-0 m above ground 0-6000 m above ground 30-0 mb above ground 60-30 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 0C isotherm 1 hybrid level 500-1000 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 20 mb 10 mb 5 mb surface max wind mean sea level planetary boundary layer tropopause entire atmosphere (considered as a single layer) cloud base cloud top 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 2.3.27, October 2026

NCEP NAM(ETA) Forecasts

Available Data Dates:

Available Files (file size):

Parameters

Levels

Subregion

Download

NCEP NAM(ETA) 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