Access Weather Underground’s Interactive Tornado Map for current information on today’s storms, all storms, and historically significant storms in the U.S.  This tornado map is updated hourly, based on data from more than 18,000 weather stations nationwide.
Once you’ve accessed the interactive map, select a category shown on the tabs above the map (Today’s Storms, All Storms, Historically Significant Storms) and then simply click on the symbols on the map for access to specific info, any photos that have been uploaded, and even radar showing current weather systems.  Another feature of this interactive tornado map is the “Storm Search” feature in the right column where you can enter a location and find current or past tornado records for an exact location.