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

Two newly identified patterns in the stratospheric polar vortex can send cold air over North America to cause extreme cold ...

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

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

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

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 ...

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

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. -- and this study explains why. Researchers ...

An international research group has found that extreme cold snaps in the United States are driven by disruptions in a high-altitude Arctic air mass called the polar vortex, Hebrew University of ...

The polar vortex blasts are expected to hit from Jan. 3 to 4, Jan. 7 to 8 and Jan. 11 to 12, according to AccuWeather meteorologist Alex DaSilva. Advertisement What exactly is a polar vortex, and ...