Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
SLIGHT 72,817 8,887,679 Charlotte, NC...Omaha, NE...Des Moines, IA...Columbia, SC...Sioux City, IA...
MARGINAL 338,425 32,839,231 Oklahoma City, OK...Nashville, TN...Kansas City, MO...Tulsa, OK...Raleigh, NC...