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

There are more ways than we knew for the stratospheric polar vortex to get disrupted, shooting cold air southwards across ...

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

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

The Polar Vortex,an atmospheric phenomenon that shapes our winter weather,has been gaining attention as it undergoes changes ...

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

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

Stratospheric polar vortex changes still trigger brutal U.S. winter cold snaps and extreme weather despite a warming climate.

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

Cold air breezes over North America as a result of two new patterns identified in the stratospheric polar vortex, countering ...

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

One new study identifies a 17 percent increase in the destructive potential of the strongest nor’easters, while another ...