Isotachs - Current Winds in the U.S.

http://www.e-missions.net/wvstorm/?cat=2&sid=1&pid=73&page=Weather%20Satellites%20and%20Maps 

 

This map features isotachs – lines of equal wind speed.  The isotachs in this particular map also have small arrows, indicating the wind direction.  It looks like the Southwest and the Southeast (particularly Alabama and Mississippi) are experiencing faster winds than the rest of the country on this day (December 2, 2008).