U.S. Weather Models
These are the main forecast models used for predicting weather in the United States:
| Name | Forecasts | Updates | Use |
|---|---|---|---|
| GFS (Global Forecast System) | Forecasts out to 16 days | Updated 4 times a day | Weather pattern analysis and comparison |
| NAM (North American ) | Forecasts out to 84 hours | Updated 4 times a day | Short term forecasting |
| WRF (Weather and Research Forecast) | Forecasts out to 84 hours | Updated 4 times a day | Short term forecasting |
| RUC (Rapid Update Cycle) | Forecasts out to 12 hours | Every hour | Current weather |
There are other forecast models out there run by different nations, such as Canadian model (GEM), United Kingdom model (UK Met) and the European Model (Euro) for weather prediction. There are also models that are only run for forecasting the track and intensity of tropical cyclones.
Source: NOAA