More than 170 million people across the United States, from the Mexican border to the Canadian border are under cold weather alerts ahead of a crippling winter storm expected to sweep through the south from Texas to Georgia,

Brutal cold and snowy roads to start the week, with temperatures barely reaching double digits during the day and falling below zero at night. Wind will make it feel like 10 to 15 degrees below zero at times Monday night and Tuesday morning,

A blast of frigid air has officially arrived and is here to stay through the middle of the week! This will be the coldest stretch of weather that we have seen s

An Extreme Cold Warning is in effect for the northern South Plains, with a Cold Weather Advisory elsewhere from 6 PM this evening until noon on Tuesday. If you must be outside, dress in layers and cover exposed skin to avoid frost bite. Tuesday will remain cold especially in the morning thanks to the wind chill.

Starting this week into next, a lobe of the polar vortex will descend into the U.S. and bring with it brutally cold temperatures. Here's the forecast for this week:

The coldest weather of the winter is here and won’t relent until late this week. Highs may not escape the 20s until Friday; on Wednesday, they may not surpass the teens. While it’s cold, it’s dry. Significant snow is not in the forecast this week. By the weekend, temperatures will start to moderate some.

Dangerous cold arrives Monday morning in Chicago. The brutally cold morning brings wind chills of -20 to -25 degrees. A cold weather advisory is in effect until noon. The core of the polar air will settle across the Chicago area Monday night into Tuesday morning.

Chicago was waking up to a bitter cold morning Monday, with sub-zero temperatures and wind chills as low as -15. And it’s only going to get colder from there, the NBC 5 Storm Team says. “We’re cold all the way around,