Tens of thousands of people are entering their sixth day with no electricity as the Carolinas and Virginia prepare for a significant winter storm that could bring more snowfall than some parts of North Carolina have seen in years. The National Weather Service says arctic air moving into the Southeast will cause already frigid temperatures to plummet into the teens Friday night in cities like Nashville, Tennessee. With another wave of dangerous cold heading for the U.S. South, experts say the risk of hypothermia heightens for people in parts of Mississippi and Tennessee trapped at home without power in subfreezing temperatures.

A surge of arctic air is bringing strong winds, heavy snow and frigid temperatures to the Great Lakes and Northeast, a day after a bomb cyclone that hit the northern U.S. Tens of thousands of customers were without power early Tuesday, with Michigan hardest hit. The National Weather Service predicts snow squalls and gusty winds for the Eastern U.S. New York's governor warned of whiteout conditions in parts of the state. In Michigan, snow piled up quickly on Monday, and high waves on Lake Superior sent cargo ships into harbors for shelter.