Hi all, thanks for allowing me on to your forum. I'm not a physicist, but I am trying to write a piece of fiction and I'm aiming to get my physics at least some what plausible, so I thought I'd ask the experts. It goes like this: A character in a novel I'm slaving on (set in the early 80s) is imagining a many megaton nuclear bomb blast. He is pretty far away -- a mile or so -- and at the very perimeter of the effect, to where he can watch the destruction race towards his position. My physics question is: if one is far enough away from the epicenter of the initial blast does the air move for a brief second towards the center of the explosion due to the massive consumption of oxygen? Or does the blast-wave just outpace any vacuum effect at all? The way I've described it is the character can feel a slight breeze pulling him towards the epicenter of the explosion an instant prior to the blast-wave. I don't think this is right at all. I want the description to be fairly accurate and realistic. Anyways, thanks for taking the time to consider my question! Any help would be greatly appreciated.