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

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 ...

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.—and this study explains why. Researchers found that two specific ...

On Monday, the polar vortex will reach the Deep South, with temperatures down to the freezing point of 32 degrees Fahrenheit in Atlanta. Wind chills will be in the 20s.

A new study challenges the idea that climate change is behind the erratic wintertime behavior of the polar jet stream, the ...