50-Knot Wind Days (1990-2009)

Back to Tornadoes & Severe Storms Share on Facebook Share Share on Twitter Tweet
Harold Brooks and the National Severe Storms Laboratory (NSSL) have created a contoured U.S. map of the average number of 50-knot wind days per year within 25 miles of any point from 1990-2009. Data has been provided, in part, by Tom Grazulis of the Tornado Project and NWS records.