There is, of course, the rather important issue of landing and taking off. When hovering, recirculation of snow can be a problem to such an extent that the pilot experiences "whiteout" conditions and is unable to see anything outside the cockpit resulting in disorientation and an accident. Consequently, a takeoff should normally involve an immediate transition to forward flight. Equally, when landing, the pilot should aim for a "zero-zero" landing; that is to say, aim for an easily identifiable point on the ground and plan your approach so that you land on the ground (zero feet) with no forward speed (zero speed). That way, any recirculation should always be behind you. If you slow down too much so that recirculation catches up with you, go around and try again.
If you have never experienced this before, a flight with a suitably experienced instructor is probably a good idea.