Whistling wind driving me crazy

I'm not sure what the problem is, as I haven't changed/added/modded anything lately. But the last two patrols I've been on have had a non-stop whistling wind. Rain or shine. Calm or rough weather. Surface or submerged. It doesn't matter; the wind just keeps whistling.

Including at the hydrophone station, where usually every extraneous sound effect is cancelled.

Any ideas as to what the heck is going on, and how to stop it?