Melt it first. Run the motor about ten minutes each hour. Open the windows a little for fresh air to avoid carbon monoxide poisoning. Make sure the exhaust pipe is not blocked. Cover windows at night Eat and drink.
Food provides the body with energy and heat.
Fluids prevent dehydration. Check FEMA's page on Hurricane Preparedness . Preparing for a Disaster - many pages for safety precautions for earthquakes, heat waves, floods, hurricanes, landslides, tsunamis, volcanoes, wildland fires, winter storms and driving tips, thunderstorm and lightning.