Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
MODERATE 26,708 916,028 Bartlesville, OK...Ponca City, OK...Derby, KS...Pittsburg, KS...Winfield, KS...
ENHANCED 101,914 12,388,472 Indianapolis, IN...Kansas City, MO...Tulsa, OK...Wichita, KS...St. Louis, MO...
SLIGHT 219,174 21,557,298 Columbus, OH...Oklahoma City, OK...Omaha, NE...Cincinnati, OH...Lexington-Fayette, KY...
MARGINAL 218,531 27,333,412 Chicago, IL...Cleveland, OH...Raleigh, NC...Pittsburgh, PA...Toledo, OH...