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

A polar vortex is bringing arctic air into the country next week. Forecast maps show when freezing temperatures will sweep ...

Cities across the U.S. are bracing for cold temperatures as a polar vortex arrives, bringing temperatures down to much below normal for mid-to-late January. Parts of Utah are on the "very western ...

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this ...

Most of the USA is currently freezing. Since the weekend, a polar cold front has swept across the country, reaching as far as ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.

HOUSTON — All Houston airports will close Tuesday due to the winter storm expected in the area, officials said Sunday. An ...

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, ...

Millions of people across the U.S. will experience subzero or below-average temperatures in the coming days as a polar vortex coming from Siberia will usher in a new cold front. The Rockies ...

Denver is soldiering through a blast of freezing cold and snow Saturday morning, as winter weather generated by a polar vortex continues to hit the Front Range. National Weather Service ...

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