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

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

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, northern ...

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 ...

Polar air masses from Siberia are forecast to ... Forecast details depend on how quickly a cold front moves along the Eastern Seaboard over the weekend. Faster movement will cause the storm ...

Most of the USA is currently freezing. Since the weekend, a polar cold front has swept across the country, reaching as far as the Gulf of Mexico. This intense cold won't have the same impact on Europe ...

The gradual day to day warm up has an expiration date. A strong cold front, with air originating near the North Pole, will spill into West Texas, the South Plains, and Lubbock this weekend. Take a ...

The polar vortex -itself- is nothing new ... though nothing is imminent. We have a front that delivers rain to the area this weekend. That front may stall near the East Coast, serving as a ...

Arctic air will return to Texas over the weekend, bringing below-freezing temperatures, low wind chills and the chance of ...