Do you want to see what happens if some nearby point of interest is nuked. Go here Ground Zero II
First put in the zip code or name and hit search. Than select you weapon - all the way up to asteroid, although the very common B61 (USA) is dead in the middle of the slide bar. Than hit the Nuke It button.
The fallout can be adjusted to the wind by clicking carefully on the compass rose points.
One disconcerting item for those who live near the major military bases - they are very large. Which means that if the somebody with sufficient bombs wanted to knock them out, they would almost be forced to use multiple warheads. So those of us within a possible upwind pattern could see a lot of glowing dust coming our way. Of course if you are stationed at one of those bases, disconcerting probably is not a strong enough word.
|My nearest (somewhat) downwind military base: Fort Bragg, NC|
When you turn to the fallout gauge, the damage starts spreading. You have to pull back and slide to the northeast to see the results. In this case the fallout with a constant gentle breeze is almost at the southern bedroom communities of Raleigh, our state capital in 6 hours.
|Same ordinance, this time showing fallout.|
Raleigh is not perfectly downwind from Fort Bragg. But it is almost perfectly downwind from the Shearon Harris Nuclear Power Plant in New Hill, NC. So it has a more than one way to find itself glowing.