Over the next 10 days, scientists say, changes in the stratosphere will upend weather patterns and set the stage for a cold, snowy December across parts of the Northern Hemisphere.

It has been a warm autumn, so far. But the polar vortex is forecast to change unusually early, and that could impact your ...

A polar vortex — a large area of low pressure — is heading south from the Arctic, bringing with it cold weather across many ...

With nearly 82 million people expected to travel for the Thanksgiving holiday, the FOX Forecast Center is monitoring two ...

A sudden stratospheric warming could soon disturb the polar vortex, causing frigid air to spill from the North Pole to North ...

Another arctic blast is on the move toward the U.S., bringing the potential for bitter cold and heavy snow accumulations to ...