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

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

In the stratosphere over Siberia, temperatures recently jumped nearly 100 degrees Fahrenheit, shoving the polar vortex off its North Pole perch.

Different weather forces in the Arctic are combining to push the chilly air that usually stays near the North Pole not just into the United States, but also Europe, several meteorologists told The ...

The polar vortex usually keeps cold Arctic air confined above the North Pole, but experts believe it is starting to shift and stretch. That disruption could create the conditions for springtime ...

Charlottesville and much of central Virginia were under an extreme heat warning Tuesday, with temperatures predicted to stay ...

A new study challenges the idea that climate change is behind the recent erratic behavior of the polar jet stream, the massive current of Arctic air ...

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 patterns and making them more extreme. Scientists call this “stratospheric wave ...

An astrophysicist who spent time doing research at the South Pole gets to the bottom of how things feel at the ends of the ...