====== Global Forecast System (GFS) ====== The Global Forecast System (GFS) is a weather forecast model produced by the National Centers for Environmental Prediction (NCEP). The GFS covers the entire globe and can be used to predict weather 16 days out. [[https://www.ncdc.noaa.gov/data-access/model-data/model-datasets/global-forcast-system-gfs|Learn more]]