Over 95 million Americans on alert for brutal cold temperatures in coming days - ABC News

1. Over 95 million Americans on alert for brutal cold temperatures in coming days  ABC News
2. Arctic cold weather: Preparations made as U.S. braces for freezing temperatures, snow  NBC News
3. Extreme cold forecast for much of US in coming days, including unusual snow in the Gulf Coast area  The Associated Press
4. Polar vortex maps show where arctic blast is set to freeze the U.S. as far as the Deep South  CBS News
5. A polar vortex is set to grip much of the U.S. What does that mean?  NPR