Indeed there is even wind underwater evidently. Next time you sink a ship watch it with the cam and the flag flys even underwater.

I had this happen to me yesterday. After I torpedoed the carrier and it partially capsized while resting on the bottom is when the aim point shifted. I was stationary in a S-18 with partial light shooting at a stationary carrier from about 500 yards and I had to aim way left as the shells were impacting considerable to the right all the sudden. I was in a harbor with calm water. When I first opened up on the carrier they were shooting correctly.

So, this isn't a weather related issue unless it's a weather related bug.

Sounds like the bug is a carryover from SHIII. I had it happen several times with the vanilla SHIII. Only recently have I downloaded it GWX. If its still in SHIV, don't expect it to be corrected. It was a minor annoyance that could be compensated for once it occurred. The only thing the wind speed indicator did was prevent you from firing the guns(unless you modded it, as I did). I would shoot in 15 m/s winds and hit the target right where I was aiming for. Then the glitch would happen and my shots are going way left/right. So, I just looked where the shot fell and that became my "new" aiming point. I never figured out what triggered the bug, it just seemed to happen every now and then.

:rotfl:Thats awesome.