Which states form the path known as “tornado alley”?
This is not as simple an answer as you might think. I copied the following from tornadochaser.net. They also have some very interesting maps: You will find Tornado Alley maps will vary from source to source. So this is only one opinion of many. Some consider tornado alley as the area where only the most intense killer tornadoes are likely to occur, looking where F4 and F5 tornadoes have struck in history multiple times. Others draw tornado alley only where tornado frequency is the highest, looking at areas that have recorded multiple tornado touchdowns consistently year after year. Some years certain states seem to get enough tornadoes to qualify as part of tornado alley but, when looking at tornadoes over many years in that state you see that it was just an unusual period for them. Many arguments over what states are in tornado alley take place, so to be fair qualify what criteria you are using in determining tornado alley. In 2004 people in Illinois were at greater risk than most of
