The southern United States, including states like Mississippi, the Carolinas, and Virginia, is grappling with dangerous cold temperatures and widespread power outages. Tens of thousands of residents are in their sixth day without electricity as they prepare for another winter storm, while a new wave of arctic air is expected to bring near-record cold temperatures. Authorities are warning about the risks of hypothermia as wind chills approach zero, urging residents to dress in layers and take precautions for people, pets, and plants. With highs staying below freezing and lows expected to dip into the teens, people in affected areas are advised to winterize their homes and stay vigilant against cold-related illnesses.