Snow safety advice from the National Weather Service:
Moving all this snow can be dangerous. Here are some precautions.
Do not overexert yourself...shoveling or even walking in the heavy snow is extremely taxing. Take plenty of breaks to avoid overexerting yourself.
Overstressed roofs can collapse. Snow removal off structures is a dangerous activity that should only be done by qualified individuals following safety protocols to minimize risks. If at any time there is a concern that snow loads may cause a collapse...evacuate the building. Signs of overstressed roofs may include sagging tiles or boards. Popping, cracking or creaking sounds also signal significant danger.
Travel safety -- many roads are still in extremely poor condition or are impassible. Heed local, regional and other emergency travel bans. Take the time now and place a winter safety kit in your car. Items include but are not limited to: a fully charged cell phone, blankets, flashlight, knife, non-perishable food, clothing, and a shovel.
Clear snow from high efficiency furnace pipes, snow covering furnace pipes can lead to carbon monoxide build up in your home. Ensure carbon monoxide detectors have fresh batteries and are working properly.
Generator safety -- if you are relying on a generator for power make sure the generator is located away from the house and not in an enclosed space. Running a generator indoors can lead to a build of harmful gases in your home.
Space heater safety -- space heaters should also be properly ventilated and used only if they are operating properly.