The coldest air of the season is blanketing the Midwest, Northeast, and Southeast, with dangerous low temperatures. More than ...

Arctic blast, polar vortex and Alberta clipper are all explained as Kalitlyn McGrath breaks down what makes winter weather so ...

Polar vortex will hit the US with snow, cold and storms before Christmas. Will Mississippi weather turn frosty? What we know ...

"Arctic air will bring near record cold temperatures and dangerous wind chills," the National Weather Service said.

The northern U.S. is bracing for bone-chilling cold as a weakened polar vortex pushes Arctic air south. How cold will temps ...