Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
SLIGHT 110,178 12,651,722 Indianapolis, IN...Kansas City, MO...Wichita, KS...St. Louis, MO...Louisville, KY...
MARGINAL 190,652 26,453,559 Detroit, MI...Columbus, OH...Cleveland, OH...Toledo, OH...Cincinnati, OH...