Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
SLIGHT 112,920 10,316,607 Dallas, TX...Fort Worth, TX...Arlington, TX...Plano, TX...Garland, TX...
MARGINAL 253,006 22,512,315 San Antonio, TX...Austin, TX...Charlotte, NC...Oklahoma City, OK...Virginia Beach, VA...