University Corporation for Atmospheric Research
Ucar: Learning Zone
This comprehensive, interactive site is loaded with information, activities, and stories about thunderstorms, lightning, and tornadoes. Find out how these weather systems are formed, how they impact our lives, and how they cause chaos.
Other
Weather Pages: Thunderstorm Map
This site contains a map of the Average Annual Days of Thunderstorms in the US. Cities are ranked in a table according to their average annual thunderstorm. Look for your city!