- Minnesota Tornado History and Statistics
(MNDNR State Climatology Office) - Historical Tornado Tracks
(Midwestern Regional Climate Center) - Climatology of Strong and Violent Tornadoes
(National Severe Storms Laboratory) - Climatological Estimates of Local Daily Tornado Probability for the United States
(National Severe Storms Laboratory) - U.S. Tornado Environment Browser
(Storm Prediction Center) - Smithsonian Interactive Tornado Map
