The U.S. is bracing for a severe Arctic blast, with over 75% of the country expected to face dangerously low temperatures and heavy snowfall this week. Winter storm warnings are in effect for 12 states as a series of back-to-back storms sweep across the eastern U.S., bringing heavy snow, ice, and extreme cold. Meteorologists have raised alarms regarding the worsening forecast, predicting significant snowfall in the Northeast and Mid-Atlantic regions. Travel warnings have been issued for 15 states amid the ongoing severe winter weather, leading to school and government office closures in several areas. With up to 10 inches of snow expected in some regions, the impact of these storms is poised to be life-threatening.