In the United States, the average person has a 1 in 5 chance of being affected by a tornado in their lifetime.
The world's largest tornado outbreak occurred in the United States, with 104 tornadoes in 24 hours on April 3, 1974.
Tornadoes are responsible for an average of 800 fatalities per year in the United States.
The largest tornado in history was the Tri-City tornado in Oklahoma, which had a 1.5-mile diameter.
The world's highest wind speed ever recorded was 73 miles per hour in Oklahoma.