When the polar vortex stretches, North America feels the chill. New research reveals some of the stratospheric patterns ...

A new study links cold snaps in North America to changes in the polar vortex. The vortex, a low-pressure zone over the Arctic ...

If you live in the northern United States or Canada, you’ve probably come to dread the phrase “polar vortex” when it’s uttered by a meteorologist during the winter months. Think brutally cold air, ...

Strange things are happening in the sky above the Arctic — and they’re freezing the U.S. in unexpected ways. A new study ...

Three factors are combining to increase the likelihood of a weaker polar vortex this winter, the website reports. And a ...

Even in a warming climate, brutal cold snaps still hammer parts of the U.S., and a new study uncovers why. High above the ...

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. In a study appearing in Science Advances, ...

The mechanism involves atmospheric waves that bounce between the upper atmosphere and ground level, amplifying weather ...

Less Arctic sea ice during the winter months also means higher temperatures in the atmosphere, which can weaken or even ...

The polar vortex is a broad region of freezing air that lives above the North Pole. It can make for frigid weather when the jet stream, which usually holds it in place, bends and lets that cold ...

“The polar vortex is often considered a part of that mechanism,” Butler wrote in her email. The 2018 paper that found a link between weaker vortices and severe winter weather, ...

The polar vortex – everyone's favorite wintertime whipping boy – is actually a gigantic, circular area of cold air high up in the atmosphere that typically spins over the North Pole ...