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 The GFS superceded the AVN and MRF models, on which it is largely based.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.
16:53 EDT Darwin has recorded more rain in the past 24 hours than the entire month of November after the Top End experienced strong storms.