Snow building up in/on the induction intakes/filters can have you reaching for hot/alternate air. The Partenavia and Apache are 2 types I've had this issue with.
Granite City Flyer
I almost posted this exception but decided not too. Yes if the snow has nowhere to go ie it hits a flat surface like a grille and doesnt pass through there is a danger that it will block the inlet.
Most aircraft dont have that sort of setup but ones which have a grill over something like an engine intake could block with snow if its unheated. The Partenavia did come to mind but that aircraft doesnt have a good reputation in any icing not just snow.
Pace