MINNEAPOLIS, Minnesota — Our entire region is under an Extreme Cold Weather Warning until 12 p.m. Tuesday; wind chills could fall as low as -45 degrees. This Arctic blast is thanks to a polar vortex.

Still, several Colorado school districts will start late on Tuesday as the state waits out the last of subzero temperatures.

An intense blast of arctic air blanketed the Mid-Atlantic and the Northeast with frigid temperatures, and a rare winter storm ...

Up to two inches of snow and sleet are possible and there could be some travel issues overnight. Gov. Brian Kemp has declared ...

Some schools and organizations in Minnesota are announcing additional closings for Tuesday, following a wave of closings ...

A historic winter storm is poised to produce potentially record-breaking snows from coastal Texas to northern Florida late ...

With severely cold temperatures forecasted in York County this week, utility companies are advising customers to take safety ...

Millions of Americans are bracing for life-threatening cold as an arctic blast driven by the polar vortex plunges ...

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

The arctic blast is expected to affect millions of people across the United States with brisk winds, and dangerously cold ...

Michigan lawmakers had handed out hundreds of tickets to constituents, but those are now commemorative after inauguration ...

Residents across the country from the Northern Plains to the tip of Maine are bracing for dangerously low temperatures as tens of millions of residents along the East Coast contend ...