see the fallout prediction maps for an 800kt nuclear detonation for yourself
http://nuclearsecrecy.com/nukemap/
Estimated total-dose fallout contours for a 800 kiloton surface burst with a 15 mph wind: ▼
Fallout contour for 1 rads per hour:
Maximum downwind cloud distance: 388 km
Maximum width: 87.4 km
Approximate area affected: 27,300 kmē
Fallout contour for 10 rads per hour:
Maximum downwind cloud distance: 286 km
Maximum width: 61.5 km
Approximate area affected: 14,360 kmē
Fallout contour for 100 rads per hour:
Maximum downwind cloud distance: 184 km
Maximum width: 35.7 km
Approximate area affected: 5,540 kmē
Fallout contour for 1,000 rads per hour:
Maximum downwind cloud distance: 82.1 km
Maximum width: 9.81 km
Approximate area affected: 831 kmē
Fallout windsock is 7 km from ground zero. C