It’s been warmer in Alaska than in three dozen other states. If someone asked you, “Where can I go in the United States to ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's ...

A bleak side-by-side image of the weather on opposite sides of the United States this week appears to show a stark shift in ...

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 ...

Another polar vortex disruption will stretch Arctic air across ... Up to 280 million Americans will have a day or two where it's colder than Anchorage, Alaska, said private meteorologist Ryan Maue.

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame.

"I think the ridging over Alaska is playing a larger role in the cold air outbreak," Ciasto told CNET. "The stratospheric polar vortex is not as stretched as it was last week so the connection we ...

This will be due to a polar vortex, an area of strong winds that encircle the Arctic and typically keeps the coldest air locked near the Pole, according to the FOX Forecast Center. This weekend ...