Don't keep your refrigerator or freezer too cold. Recommended temperatures are 37° to 40°F for the fresh food compartment of the refrigerator and 5°F for the freezer section. If you have a separate freezer for long-term storage, it should be kept at 0°F.
Prepare to survive on your own for at least three days. Assemble a disaster supply kit. Be sure to include winter specific items including rock salt to melt ice on walkways, sand to improve traction, and snow shovels. Keep a stock of non-perishable food and extra drinking water.
Prepare for isolation in your home. Maintain several days supply of medicine, water, and food that needs no refrigeration. Have sufficient heating fuel, regular fuel sources may be cut off. Have emergency heating equipment and fuel (a gas fireplace or wood burning stove or fireplace) so you can keep at least one room in your home liveable. Be sure the room is well ventilated. If a thermostat controls your furnace and your electricity is cut off by a storm, you will need emergency heat.