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 The GFS superceded the AVN and MRF models, on which it is largely based.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.
21:01 EST South Australian farmers have held an emergency meeting in the state's Mid North to deal with the fallout from unseasonal frost, a problem most have never had to face before.