Twister Dashboard: Exploring Three Decades of Violent Storms

Although tornadoes can occur throughout the year, prime time for twisters in the U.S. is spring and early summer. Larger symbols show more violent tornadoes. Zoom into the map to see approximate tornado tracks. This custom story map design was produced by Esri's story maps team for Smithsonian. It was published by Smithsonian on March 24, 2014. For more information on story maps, visit storymaps.arcgis.com. This story doesn't use one of the Story Map app templates. Data is from the National Oceanic and Atmospheric Administration.