As I understand it, currently any wind only affects your plane's flight. Once bombs are dropped, they are unaffected by any wind in the arena.
Trust me, bombs are affected by wind.
Well, yes and no. From my experience, once you drop your bombs, they're not affected by any
changes in the wind as they fall -- so if you have a 20kt wind at 150° from 15,000' up, and you drop from 20,000', the bombs will fall as if they were experiencing that wind all the way to the ground. However, the
line of fall -- what vector the bombs take when they drop -- is a function of your airspeed and heading plus any wind at your drop alt. So you're right, Beefcake, in that the wind controls how the bombs will fall, but ImADot's right in that, once they're dropped, their fall doesn't depend on the wind any more.