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 The GFS superceded the AVN and MRF models, on which it is largely based.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.
19:09 EDT Golf-ball-sized hail has smashed windows and strong winds have flipped aircraft as two storm cells formed a super cell and swept across south-east Queensland.