NOAA GFS

The Global Forecast System (GFS) is a National Oceanic and Atmospheric Administration (NOAA) National Centers for Environmental Prediction (NCEP) weather forecast model that generates data for dozens of atmospheric and land-soil variables, including temperatures, winds, precipitation, soil moisture, and atmospheric ozone concentration. The system couples four separate models (atmosphere, ocean model, land/soil model, and sea ice) that work together to depict weather conditions.

dynamical.org republishes NOAA GFS as free, analysis-ready Icechunk Zarr archives — open them directly with Xarray, no GRIB wrangling or bulk downloads.

Forecasts

• NOAA GFS forecasttime-optimized
  Global · 21 variables · 0.25 degrees

Analyses

• NOAA GFS analysistime-optimized
  Global · 21 variables · 0.25 degrees

Data access

• STAC catalog (browse) — the machine-readable source of truth.
• AWS Open Data Registry entry · browse the S3 bucket