The main issue with heavy amount of snowfall is deadly roof collapse. Unfortunately there's not much I can do in terms of preparedness. Draining the plumbing (To drain the plumbing, cut off the water supply and open the highest and the lowest faucets in the building. Gravity will drain most of the system.), shut off water to outside faucets, inspect the roof and its supports routinely, be alert and take cracking noises seriously, watch out if interior doors begin to stick, etc.

Frankie