The GFS forecast doesn't seem to be updated as often when logged in vs not logged in:

Also, when clicking on GFS to get its forecast, the screen is not updated.

@MTSAVKAL I notice the same thing too, here in the Philippines. One local weather site even went on to comment that they use mostly GFS for wind forecasts (because according to him, wind readings by ECMWF is usually over-the-top). They only use ECMWF for precipitation forecasts, but even in that aspect, GFS seems to be more accurate.