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.