Where Is Tornado Alley?

Across the United States, certain regions are more prone to severe weather patterns than others. One common example of this is an area known as “Tornado Alley.” This large, central section of the United States includes parts of the Great Plains, Midwest, and Southeast where tornadoes are more likely to occur.

While the term “Tornado Alley” is not officially used by the National Weather Service or the National Oceanic and Atmospheric Administration, it has been used for the better part of a century.

What Is Tornado Alley?

Tornado Alley is the section of the United States where, historically, the most tornadoes have occurred.

Additionally, the tornadoes that do form in Tornado Alley tend to be more devastating, on average, than the tornadoes that occur in other areas of the country. In fact, roughly a quarter of the tornadoes classed EF2 or greater over the last hundred years have occurred within Tornado Alley.

Please keep in mind that any tornado—no matter its class or location—should be considered a severe weather pattern that is capable of causing harm and destruction.

Furthermore, even though states located within Tornado Alley are more likely to experience tornadoes as compared to other regions of the country, tornadoes can form anywhere in the United States. Please refer to our tornado preparedness guide so that you can be prepared should a tornado watch or warning be issued in your area.

Where Is Tornado Alley?

While it has no set boundaries, states typically considered to be located within Tornado Alley include:

• Texas
• Kansas
• Oklahoma
• Florida
• Nebraska
• Illinois
• Colorado
• Iowa
• Missouri

Tornadoes in these states historically form over the flat plains, but they are known to travel into densely populated areas, leaving a trail of destruction in their wake.

In addition to the states mentioned above, the southern states of Mississippi, Alabama, and Tennessee have seen a significant increase in tornadoes over the last several years. This specific sub-section of Tornado Alley is often referred to as Dixie Alley.

Some experts believe any states east of the continental divide could see extensive tornado activity due to the ideal weather conditions for tornados found in these areas.

Tornado Season In Tornado Alley

Because Tornado Alley covers such a large area of the country, not every section experiences increased tornado activity at the same time. Tornado season in each of the various regions is as follows:

• East and Gulf Coasts – Cooler spring months
• Southern Plains – May to June
• Northern Plains and Midwest – June to July