Your local National Weather Service will issue watches, warning or advisories when harsh winter conditions are expected:
When you travel outdoors in the winter time, be sure to dress in layers of clothes. Many layers of light clothing will keep you warmer than just one layer of a heavy fabric. Also, make sure to keep your fingers and ears covered at all times to prevent frost bite. And also make sure to keep your feet dry. Having wet feet in the winter is an invitation for frostbite.