This map tracks tornado action for the last fifty years from NOAA data, with the intensity of the track showing how powerful the tornado was.
Here’s a closeup look at Mississippi, which at a glance seems as busy as anywhere, no surprise. The easiest border to spot in all the action is with Alabama– find Mobile bay, and there just tot he left is a line going all the way up. The Tennessee border is at the very top of this clip.
h/t Bill Greg, map maven, on Facebook.