Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
ENHANCED 56,772 613,802 Abilene, TX...San Angelo, TX...Big Spring, TX...Altus, OK...Woodward, OK...
SLIGHT 69,449 2,502,641 Oklahoma City, OK...Norman, OK...Wichita Falls, TX...Midland, TX...Lawton, OK...
MARGINAL 247,346 17,767,412 Dallas, TX...Fort Worth, TX...Omaha, NE...Minneapolis, MN...Arlington, TX...