Brrrrrrrrrrrrrrrrrrrrrrrrr Also: SNOW DAY

Icicles near a beach on Lake Michigan in Chicago Tuesday.

Jim Young / Reuters

The Arctic air is expected to wallop a massive 2,000 mile-wide corridor from Montana to the East Coast. The National Weather Service is warning of "bitterly cold temperatures the Dakotas to the Northeast," as well as lake effect snow around the Great Lakes. Also, this:

"Wind chill advisories and warnings are in effect for many of these same areas, with some of the coldest wind chill readings in the -25 to -45 degree range!"

The map below shows the low temperature forecast across the U.S. on Thursday morning. The southern and western coasts will be the only areas where temperatures remain above freezing.

WeatherBell Analytics

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