I wouldn't even be concerned about the machine possibly getting in the lee of a rock in a 20 kt wind. If that helicopter cannot handle those conditions, then they have one precious little puppy on their hands, that shouldn't be used in anything but clear blue days. Now i don't think is the case, but that is where this convo is heading.
And when the knives come out for me, actually yes i do fly, and have just recently come off a job operating fully loaded, in the lee of a 2000' hill, in 32 kt gusting 65, along with smoke mixed in, and we were required to do relatively precise drops on fires to save houses. There were a number of helicopters doing it, from 120's, 350, 355, BK and UH1's all on the fire, and they all handled it, and I'm sure that a 92 would be able to handle those conditions as well.