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AIGFS (Artificial Intelligence Global Forecast System) is an AI-based global weather forecasting model of the National Oceanic and Atmospheric Administration (NOAA). It is part of a suite of AI-supported global weather forecasting models introduced by NOAA.

According to NOAA, AIGFS uses artificial intelligence methods to generate global weather forecasts. In terms of spatial coverage and forecast horizon, the forecasts are comparable to those of the operational Global Forecast System (GFS).

The model products are provided on a global 0.25° × 0.25° latitude–longitude grid. Vertically, 13 pressure levels are available.

NOAA states that AIGFS v1.0 demonstrates higher forecast skill for various large-scale atmospheric fields compared to the operational GFS.

For tropical cyclones, a reduction in track errors at longer forecast lead times is reported. At the same time, AIGFS v1.0 is reported to show lower accuracy in forecasting tropical cyclone intensity compared to the GFS.

According to NOAA, a single 16-day forecast with AIGFS requires about 0.3% of the computational resources of the operational GFS. The computation takes approximately 40 minutes.

On our website, under the menu items “Forecast” and “AI/ML Models,” you will find additional operational AI and ML models that are currently available, and you can directly compare their forecast performance for your location on our website.