Any sort of wind along with the bitter cold will make for frostbite in as little as 15 to 20 minutes in the incoming arctic cold. Our long-range forecast models are continuing to pump in wind chill temperatures between -15° and 0° consistently each morning Monday through Wednesday.

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is about to bring even harsher arctic blast to nearly 300 million Americans starting this weekend. Maps show where and when the cold front will arrive.

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into next week, impacting millions of Americans in nearly all of the contiguous states.