Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
SLIGHT 156,217 13,249,803 Dallas, TX...Fort Worth, TX...Omaha, NE...Arlington, TX...Plano, TX...
MARGINAL 202,798 14,296,109 Jacksonville, FL...Memphis, TN...Tulsa, OK...Minneapolis, MN...St. Paul, MN...