Tornado Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
10 % 27,159 1,505,549 Davenport, IA...Iowa City, IA...Moline, IL...Quincy, IL...Rock Island, IL...
5 % 109,123 22,869,175 Chicago, IL...Milwaukee, WI...Kansas City, KS...Kansas City, MO...Madison, WI...
2 % 145,244 15,538,461 Indianapolis, IN...Wichita, KS...St. Louis, MO...Fort Wayne, IN...Des Moines, IA...