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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 The GFS superceded the AVN and MRF models, on which it is largely based.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.
18:09 EST The forecast for every day this week is almost identical, windy with showers in southeast, sunny elsewhere and warm in the north.