NARAC utilizes numerical weather prediction (NWP) model forecasts and analyses appropriate to the area and time of an incident. Several agencies provide these forecasts and analyses:
- National Oceanic and Atmospheric Administration (NOAA) and National Center for Environmental Prediction (NCEP) global and regional simulations and analyses
- North American Model (NAM), currently running WRF with NMM core
- Global Forecast System (GFS)
- Rapid Update Cycler (RUC)
- Air Force Weather Agency (AFWA) Weather Research and Forecast (WRF) model output for special regional areas
- Global NOGAPS model results from the Fleet Numerical Meteorology and Oceanography Center (FNMOC)
NARAC utilizes numerical weather prediction model forecasts and analyses from several agencies.
| Numerical Weather Prediction Model Results from External Sources | ||
|---|---|---|
| Agency | Model | Resolution/Coverage |
| Air Force Weather Agency (AFWA) | WRF | 45 and 15 km resolution, special regional forecasts |
| Fleet Numerical Meteorology and Oceanography Center (FNMOC) | NOGAPS | 0.5° (~50 km) resolution, global, 3 hr intervals to 72 hrs from 0000 and 1200 UTC daily |
| NOAA National Weather Service (NWS) | NAM (WRF) | 12 km resolution, North America Model (NAM) |
| AVN (GFS) | 0.5° (~50 km) resolution, global, 3 hr intervals to 180 hr from four initialization times per day | |
| RUC | 13 km resolution, U.S., 1 hr intervals to 9 hrs from hourly initialization times | |
| NARAC In-House Capabilities | WRF | Variable resolution (U.S., world-wide capabilities) |




