Should be no problem for EC-135, in a 206 it would be more interesting and no pleasure flight for sure. If its just A-B flight across mountain area and no mt.landings involved I don't see why not if the vis is good.
but operating and perhaps landing heavy in tight spots, maybe not
How big is the gust? Steady 40kts are better that 20kts with gusting 35-40
But in wind like this its good know your area well and try to read the terrain like a book and picture in your head where the CAT is and where you should not be flying and whether to over the tops or stay all way down in the valley bottoms
But I urge not go if you don't feel good about it.
your boss we be in the poo with you if the !!!! hits the fan.
stay on the upwind side
