http://hint.fm/wind/

An invisible, ancient source of energy surrounds us—energy that powered the
first explorations of the world, and that may be a key to the future. This map
shows you the delicate tracery of wind flowing over the US right now.

Surface wind data from the National Digital Forecast Database. (For those of you
chasing top wind speed, note that maximum speed may occur over lakes or just
offshore.)

These are 1-hour forecasts, downloaded once per hour. So what you're seeing is
close to live data.

Thanks to Tom Lanning. This is another great animation as is the
one above.