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

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 ...

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

In A Nutshell A major study of 42 years of data shows severe winter storms have shifted northwest, away from the traditional ...

The condition of the polar vortex influences everyday weather around the globe. Scientist issue warning about concerning ...

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 – 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 ...

The polar vortex appears to be on the move. That’s because stratospheric warming is occurring at high altitudes above the North Pole, resulting in a spike in temperatures.

The stratospheric polar vortex is smoother, smaller and more circular. It doesn’t exist year-round — instead it’s a whirlpool of frigid air that forms in the fall as the upper atmosphere cools.

Disruptions to the polar vortex can cause severe weather in the U.S., such as in 2021 when Louisville, Kentucky saw "an abrupt end to the mostly tranquil weather the region had experienced for ...