A bitter blast of Arctic air – which is related to the polar vortex – is roaring south across the central U.S. Tuesday, bringing with it record-cold temperatures and "dangerously" low wind chills.

TONIGHT: Becoming mostly clear; blustery and bitter cold with below zero wind chills by morning. Low: 8 TUESDAY: Partly to mostly sunny, breezy, and bitter cold; below zero wind chills in the morning.

A major portion of the U.S. is facing snow and frigid temperatures on Wednesday morning as fears of another winter storm loom ahead of the weekend. Freeze warnings stretch as far south as the Gulf ...

Dangerously cold conditions will impact over 60 million Americans between Wednesday and the weekend spanning a large swath of ...

There’s no denying it. It’s really December. -40 -20 0 20 32 Source: NOAA Two separate shots of cold Arctic air moving down from Canada are predicted to send temperatures across a portion of the ...