NUMBER OF WARHEADS DELIVERED: Three.
BURST TYPE: Airburst and groundburst.
SPECIAL FEATURES: Same as 1 above.
FALLOUT PATTERN: A frontal system was developing winds of 10–15 knots in a SE direction. Fallout was into South and East Texas, including the Houston area.
4. GREAT FALLS, MONTANA AREA
NATURE OF TARGET: U.S. Minuteman missile fields.
TYPE/YIELD OF SOVIET WEAPON: Missile-delivered thermonuclear warhead in 1–2 MT range.
NUMBER OF WARHEADS DELIVERED: Unknown, but estimated at 25+.
BURST TYPE: Groundburst for maximum silo destruction. Some airburst detonations.
SPECIAL FEATURES: Intense surface radiation, with moderate to severe atmospheric fallout downwind.
FALLOUT PATTERN: Winds for late October were SE. Because of the attack nature, initial radioactivity was widespread over a large area. Radiation extended to Wyoming and South Dakota.
5. GRAND FORKS, NORTH DAKOTA AREA
NATURE OF TARGET: U.S. Minuteman missile fields.
TYPE/YIELD OF SOVIET WEAPON: Missile-delivered thermonuclear warhead in 1–2 MT range.
NUMBER OF WARHEADS DELIVERED: Unknown, but estimated at 25+.
BURST TYPE: Groundburst for maximum silo destruction. Some airburst detonations.
SPECIAL FEATURES: Same as 4 above.
FALLOUT PATTERN: Winds were SE, hence fallout pattern developed over Minnesota, with some low-level fallout in Wisconsin.
6. MINOT, NORTH DAKOTA AREA
NATURE OF TARGET: U.S. Minuteman missile fields.
TYPE/YIELD OF SOVIET WEAPON: Missile-delivered thermonuclear warhead in 1–2 MT range.
NUMBER OF WARHEADS DELIVERED: Unknown, but estimated at 45+.
BURST TYPE: Groundburst for maximum depth destruction. Some airburst detonations.
SPECIAL FEATURES: Same as 4 above.
FALLOUT PATTERN: Winds were SSE-S for attack date. Early fallout was concentrated in N. Dakota, with some fallout in S. Dakota and minor fallout in Iowa.
7. RAPID CITY, SOUTH DAKOTA AREA
NATURE OF TARGET: U.S. Minuteman missile fields.
TYPE/YIELD OF SOVIET WEAPON: Missile-delivered thermonuclear warhead in 1–2 MT range.
NUMBER OF WARHEADS DELIVERED: Unknown, but estimated at 35+.
BURST TYPE: Groundburst for maximum depth destruction. Some airburst detonations.
SPECIAL FEATURES: Same as 4 above.
FALLOUT PATTERN: Winds were SSE. Fallout line was largely into S. Dakota and Nebraska, with development into Iowa and Missouri.
8. CHEYENNE, WYOMING AREA
NATURE OF TARGET: U.S. Minuteman and MX missile fields.
TYPE/YIELD OF SOVIET WEAPON: Missile-delivered thermonuclear warhead in 1–2 MT range.
NUMBER OF WARHEADS DELIVERED: Unknown but estimated at 35+.
BURST TYPE: Groundburst for maximum depth destruction. Some airburst detonations.
SPECIAL FEATURES: Same as 4 above.
FALLOUT PATTERN: Winds were SSE. Primary fallout occurred in Wyoming, Kansas, Colorado, and Nebraska, with some development Into southeastern Missouri.
MONTANA
| Billings | 45D 48M North / 108D 32M West |
| Glasgow | 48D 13M North / 106D 37M West |
| Great Falls | 47D 29M North / 111D 22M West |
| Havre | 48D 33M North / 109D 46M West |
| Helena | 46D 36M North / 112D 00M West |
| Kalispell | 48D 18M North / 114S 16M West |
| Miles City | 46D 26M North / 105D 52M West |
| Missoula | 46D 55M North / 114D 05M West |
NEW YORK
| Central Park/Manhattan | 40D 47M North / 78D 58M West |
| Kennedy Airport | 40D 39M North / 73D 47M West |
| La Guardia Airport | 40D 46M North / 73D 54M West |
