I'm down in the Houston area of Texas, we got 90% humidity and 100+ degree heat. i use my a/c all the time. i have noticed that when i give it the gas without down shifting, the a/c compressor shuts down momenterly, but the fan stays on. this results in humid air coming into the car for a few secs, but it goes away as soon as i resume driving normaly.
i've had other cars that have done this too, so i'm if there is a power loss, its when your not demanding much power anyways. could be vacumn acuated or somthing