Is Tornado Alley part of Illinois?

I would say that southern and central Illinois are in the eastern end of Tornado Alley, with northern Illinois just outside of it. However, Tornado Alley is not “part of Illinois”, but rather Illinois, or at least the southern half to two-thirds, is part of Tornado Alley. read more

The middle part of the United States is an area that has many tornadoes, particularly in the spring. This area is known as tornado alley. The reason is because it is an area where large cold air masses and large warm air masses collide. read more

Generally, a Tornado Alley map starts in central Texas and goes north through Oklahoma, central Kansas and Nebraska and eastern South Dakota, sometimes dog-legging east through Iowa, Missouri, Illinois and Indiana to western Ohio. read more

Tornado Alley is a colloquial term for the area of the United States (or by some definitions extending into Canada) where tornadoes are most frequent. The term was first used in 1952 as the title of a research project to study severe weather in areas of Texas, Oklahoma, Kansas, South Dakota, Iowa, Illinois, Missouri, Nebraska, Colorado, North Dakota, and Minnesota. read more