GFSCurrently selected. GFS is the global weather forecast model of the US weather service run at an internal resolution of 28 km. It offers a plethora of parameters for the next 15 days. Updated 4 times a day up to 384 hours ahead. The runs for the 0, 6, 12 and 18Z runs are usually coming in from 3:30, 9:30, 15:30 and 21:30 UTC, respectively.
NAVGEMThe selected variable and region is available, but not for 2021-01-20, 09:00. You will switch back to the first available time step. NAVGEM is a model run by the NOAA and serves the US navy with weather forecasts. The WZ maps are based on data that is available from the NCEP server with a grid spacing of 0.5 degree and is updated twice daily (7 and 19 UTC).