An Extreme Cold Warning is in effect until 10 a.m. Wednesday, as wind chills could drop to as low as 3 degrees in some spots. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. An extended period of freezing temperatures could cause ruptured water pipes.

Weather forecasters and public agencies issued health and power loss warnings Tuesday as a “rare winter storm" gripped parts of the southern and eastern United States."A bitterly cold airmass will remain in place for much of the South and eastern U.