This is a looping animated GIF of the Airsites2000 GEI weather station info panel at Crestline launch.
It may be more useful for wind direction than for wind speed at launch.
That station only updates 4 times an hour, varying up to
a few minutes AFTER 0, 10, 30, and 40 minutes after the hour.
This page checks for an updated animated GIF every 3 minutes
A new GIF is started each day at midnight.

See also Crestline Soaring Society Weather