A significant Arctic blast is set to impact the United States next week, bringing the 10th and chilliest polar vortex of the winter. Meteorologists are sounding alarms as dangerously cold air will sweep through much of the country, resulting in record-breaking lows and potentially affecting over 100 million residents. Wind chill factors could plunge temperatures to as low as minus 25 degrees in some northern regions, while places from Chicago to New York prepare for a wave of frigid conditions. Despite the harsh cold, some areas like Michigan are beginning to see signs of spring, but for many, a winter storm and severe cold are expected to dominate the forecast.