This map shows where most tornadoes form in the United States. The red
area is known as "Tornado Alley". Most of the tornadoes in the southern
U.S. near the Gulf of Mexico are formed by
hurricanes
Click on image for full size
What is "Tornado Alley"?
A section of the Great Plains in the central part of the United States is
called "Tornado Alley". This is because more tornadoes form here than any
other part of the country. The plains are flat which allows cold polar
air from Canada to meet warm tropical air from the Gulf of Mexico.
Storm chasers go
Tornado Alley looking for tornadoes because there are so many
that
form there.
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