Check out this almost real-time animated wind map.
Go to the website (http://hint.fm/wind/index.html), watch it for a bit, and then zoom in. Unbelievable. Then compare it to the daily weather map of highs, lows, and fronts (http://cache1.intelliweather.net/imagery/IntelliWeather/fcmap12hour_nat_640x480.jpg).
Winds flow from high to low pressure areas and stream parallel to the frontal boundaries. Awesome.