Tornadoes and Severe Storms

An at-a-glance guide to tornadoes. Learn how to recognize the signs, interpret watches/warnings, and swiftly seek shelter wherever you may be.

A list of the top 10 deadliest tornadoes in the United States.

Tornadoes and the formation of tornadoes are a popular severe weather topic. Learn what causes a tornado or twister, and the role of severe thunderstorms in their formation. Also introduced are tornado myths, how tornadoes are studied, and where the most severe storms are located.

Tornadoes are one of the most destructive forces in nature. These images are live images taken at the scene of a tornado in Oklahoma.

The Fujita scale was developed by Dr. Theodore "Ted" Fujita in the 1970s. The tornado damage scale assigns a rating of F0 to F5 for tornado speed and damage strength. The scale was later updated and is now known as the Enhanced Fujita Scale.

The first tornado book ever to be devoted solely to the study of tornadoes was published in 1887 by John P. Finley.

Tornadoes have occurred in all 50 states. You may not be safe. Know the danger signs of tornado formation and where tornadoes are most likely to occur. Learning the violenbt nature of tornadoes are critical to preventing damages to your life and home.

Catch these high speed storm chaser videos as you get up close and personal with one of the worst natural disasters in weather. It’s the tornado. Witness the awesome power of high winds and damaging debris flying and swirling from close range in this list of the top 10 best tornado videos ever!

This Canadian fact sheet on tornadoes is informative and easy to follow. It includes important safety procedures to follow in the event of a warning.

Find information, dates, and explanations for famous tornadoes in the US.