Question

What 19 states make up tornado alley?

Answer 1

The phrase "tornado alley" actually has no agreed upon definition and can include different states depending on who is defining it.

Explanation:

The phrase "tornado alley" actually has no agreed upon definition and can include different states depending on who is defining it. The term was introduced by the media rather than meteorologists.

Oklahoma, Texas, Kansas, Nebraska, Colorado, and South Dakota are normally included in tornado alley. Other states that may be included are North Dakota, Wyoming, Minnesota, Iowa, Illinois, Indiana, Ohio, Missouri, Arkansas, Louisiana, Kentucky and Tennessee.

Below is one image of tornado alley, but we can see that there are not nineteen states included.

Here is another map depicting tornado alley with more states included.

You can read more about tornado alley here and here.