56 years of tornados mapped:
Hollie Nyseth Brehm recently examined why many people don't respond to tornado warnings:
[M]any people get into the mindset that the warning is "just another warning." … According to the National Weather Service, three out of four tornado warnings are false alarms. Social scientists believe that just explaining that these were false alarms (for example, that a tornado formed but didn’t touch down) would help; otherwise, people often think they are just mistakes.