Global Forecast System. The operational numerical weather forecasting model run by NCEP. The GFS superceded the AVN and MRF models, on which it is largely based. Forecast data from the GFS is available out to 180 hours at full resolution and 16 days at a reduced resolution.
11:38 EST While much of the country has been enjoying balmy winter days under a broad high pressure system, the far southeastern corner has been experiencing strong, brisk winds and showers throughout most of the week.