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 The GFS superceded the AVN and MRF models, on which it is largely based.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.
19:11 EDT Farmers from Tasmania's south-east corner are warning the region could be pushed to the brink of drought unless there is extra rainfall over summer.