North American Mesoscale Forecast System (NAM) [12 km]

Meso-ETA [12 km]

The North American Mesoscale Forecast System (NAM) is one of the major regional weather forecast models run by the National Centers for Environmental Prediction (NCEP) for producing weather forecasts. Dozens of weather parameters are available from the NAM grids, from temperature and precipitation to lightning and turbulent kinetic energy. The NAM generates multiple grids (or domains) of weather forecasts over the North American continent at various horizontal resolutions. High-resolution forecasts are generated within the NAM using additional numerical weather models. These high-resolution forecast windows are generated over fixed regions and are occasionally run to follow significant weather events, like hurricanes. This dataset contains a 12 km horizontal resolution Lambert Conformal grid covering the Continental United States (CONUS) domain. It is run four times daily at 00z, 06z, 12z and 18z out to 84 hours with a 1 hour temporal resolution.

Dataset Citation

Cite this dataset when used as a source.

Dataset Identifiers

NCEI DSI 6173
gov.noaa.ncdc:C00630

ISO 19115-2 Metadata

C00630

XML


Download Data	NCEI direct download (download) Direct download links for dataset files. NCEI THREDDS Catalog (download) THREDDS Data Service for the dataset.
Distribution Formats	GRIB (Version: 2)
Ordering Instructions	Contact NCEI for other distribution options and instructions.
Distributor	NOAA National Centers for Environmental Information ncei.info@noaa.gov
Dataset Point of Contact	Customer Engagement Branch NOAA National Centers for Environmental Information 1-828-271-4800 ncei.orders@noaa.gov
Dataset Point of Contact	DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce nomads.ncdc@noaa.gov


Coverage Description
Time Period	2004-03-01 to Present
Spatial Bounding Box Coordinates	N: 61.0 S: 12.1 E: -49.4 W: -152.9
Spatial Coverage Map


General Documentation	NCEI Dataset Landing Page Landing page for the dataset.


Publication Dates	publication: 2004-03-01
Data Presentation Form	Digital model - multi-dimensional digital representation of a feature, process, etc.
Dataset Progress Status	Ongoing - data is continually being updated
Data Update Frequency	Daily
Purpose	To provide mesoscale guidance to public and private sector meteorologists.


Cited Authors	DOC/NOAA/NWS/NCEP/EMC > Environmental Modeling Center, National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
Originators	DOC/NOAA/NWS/NCEP/EMC > Environmental Modeling Center, National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
Distributors	DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Publishers	DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce


Theme keywords	Global Change Master Directory (GCMD) Science Keywords Earth Science > Atmosphere > Air Quality > Visibility Earth Science > Atmosphere > Altitude > Geopotential Height Earth Science > Atmosphere > Altitude > Planetary Boundary Layer Height Earth Science > Atmosphere > Altitude > Tropopause Earth Science > Atmosphere > Altitude > Sea Ice Concentration Earth Science > Atmosphere > Altitude > Albedo Earth Science > Atmosphere > Altitude > Land Cover Earth Science > Atmosphere > Altitude > Soil Moisture/Water Content Earth Science > Atmosphere > Altitude > Soil Porosity Earth Science > Atmosphere > Altitude > Soil Temperature Earth Science > Atmosphere > Altitude > Land Surface Temperature Earth Science > Atmosphere > Altitude > Sea Surface Temperature Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements Earth Science > Atmosphere > Atmospheric Pressure > Pressure Thickness Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure Earth Science > Atmosphere > Atmospheric Pressure > Surface Pressure Earth Science > Atmosphere > Atmospheric Radiation > Albedo Earth Science > Atmosphere > Atmospheric Radiation > Incoming Solar Radiation Earth Science > Atmosphere > Atmospheric Radiation > Longwave Radiation Earth Science > Atmosphere > Atmospheric Radiation > Outgoing Longwave Radiation Earth Science > Atmosphere > Atmospheric Radiation > Shortwave Radiation Earth Science > Atmosphere > Atmospheric Radiation > Solar Radiation Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature Earth Science > Atmosphere > Atmospheric Temperature > Atmospheric Stability Earth Science > Atmosphere > Atmospheric Temperature > Boundary Layer Temperature Earth Science > Atmosphere > Atmospheric Temperature > Dew Point Temperature Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Skin Temperature Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature Earth Science > Atmosphere > Atmospheric Temperature > Upper Air Temperature Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Dew Point Temperature Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Processes > Evaporation Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Processes > Evapotranspiration Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Humidity Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Total Precipitable Water Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles Earth Science > Atmosphere > Atmospheric Winds > Boundary Layer Winds Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Convection Earth Science > Atmosphere > Atmospheric Winds > Surface Winds Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Vertical Wind Velocity/Speed Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Vorticity Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain > Freezing Rain Earth Science > Atmosphere > Precipitation > Precipitation Amount Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain Earth Science > Atmosphere > Precipitation > Solid Precipitation > Ice Pellets > Sleet Earth Science > Atmosphere > Precipitation > Solid Precipitation > Snow Earth Science > Biosphere > Vegetation > Vegetation Cover Earth Science > Terrestrial Hydrosphere > Snow/Ice > Albedo Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Cover Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Depth Earth Science > Oceans > Sea Ice > Sea Ice Concentration Earth Science > Land Surface > Surface Radiative Properties > Albedo Earth Science > Land Surface > Land Use/Land Cover > Land Use/Land Cover Classification > Vegetation Index Earth Science > Land Surface > Soils > Soil Moisture/Water Content Earth Science > Land Surface > Soils > Soil Porosity Earth Science > Land Surface > Soils > Soil Temperature Earth Science > Land Surface > Surface Thermal Properties > Land Surface Temperature Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature
Data Center keywords	Global Change Master Directory (GCMD) Data Center Keywords DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Place keywords	Global Change Master Directory (GCMD) Location Keywords Continent > North America
Project keywords	Global Change Master Directory (GCMD) Project Keywords NOMADS > The NOAA Operational Model Archive and Distribution System
Data Resolution keywords	Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords 10 km - < 50 km or approximately .09 degree - < .5 degree
Stratum keywords	Global Change Master Directory (GCMD) Location Keywords Vertical Location > Boundary Layer Vertical Location > Land Surface Vertical Location > Sea Surface Vertical Location > Troposphere Vertical Location > Stratosphere


Use Constraints	No constraint information available
Fees	In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.

Lineage information for: repository
Processing Steps	2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.

Last Modified: 2023-06-23

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