Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
MODERATE 62,387 8,853,207 Dallas, TX...Fort Worth, TX...Arlington, TX...Plano, TX...Garland, TX...
ENHANCED 84,486 6,794,670 San Antonio, TX...Austin, TX...Shreveport, LA...Abilene, TX...Killeen, TX...
SLIGHT 274,360 19,806,146 Houston, TX...Oklahoma City, OK...Omaha, NE...Tulsa, OK...Wichita, KS...
MARGINAL 280,507 20,953,299 Memphis, TN...Kansas City, MO...Madison, WI...Baton Rouge, LA...Lubbock, TX...