Climate and Weather


How long do most tornadoes last?

Most tornadoes have short lifespans, lasting less than ten minutes though they may be as short as only several seconds. Some may last an hour or longer. Tornadoes during the early to mid–1900s were often reported to be longer lived, though many climatologists believe these may have been tornado series instead of one single event. An average tornado will travel 5 miles (8 kilometers) during its lifespan. The tornado of March 18, 1925 traveled 219 miles (352 kilometers) through Missouri, Illinois, and Indiana at an average speed of 60 to 73 miles per hour (97 to 117 kilometers per hour).


This is a web preview of the "The Handy Science Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App