Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

If you've ever wondered why winter sometimes flips from mild to brutally cold, the answer might be hiding 20 miles above your head. That's where a rare atmospheric phenomenon called sudden ...

Alabama braces for another polar vortex blast bringing well below freezing temperatures. How cold will temperatures get? Here ...

An unusually brutal winter storm is set to pummel more than 160 million Americans from Friday, as a stretched "polar vortex" sends a devastating blast of Arctic air, bringing heavy snows and freezing ...

To understand what Americans are experiencing with this winter blast, we need to look more than 20 miles above the surface of ...

A polar vortex is expected to bring two surges of extremely cold air to the U.S. in January. Here's what to know in Middle ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. A satellite image showing a large area of low pressure, from the polar vortex, moving into the ...

A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what ...