Nicolas Garcia Belmonte has visualized wind motion in the USA, which I think is quite neat. On his weblog he writes:
I’ve been working on a WebGL data visualization of wind motion patterns for a 72 hour period in the United States.
The visualization shows wind direction encoded in line angles, wind speed encoded in line lengths and disk radius, and temperature encoded in hue. All this for about 1200 weather stations across the country.
You can switch between different visual markers from the top menu, also play the wind motion for the 72 hours or select a specific time from the timeline below the graphic.
Try it yourself here: a WebGL data visualization of wind motion patterns
h/t to Warren Meyer