Build a fire for heat and to attract attention. Do not eat snow as it will lower your body temperature. Melt it first. If you have a cellular phone, call for help. Stay in your vehicle.
Disorientation occurs quickly in wind-driven snow and cold.
Make yourself visible to rescuers. Turn on the dome light at night when running engine. Raise the hood indicating trouble after snow stops falling. Exercise from time to time by vigorously moving arms, legs, fingers, and toes to keep blood circulating and to keep warm. At Home or in a Building Stay indoors.