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

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 ...

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

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

Because of an unstable polar vortex, experts have projected record low levels of Arctic sea ice for the coming winter.

View the latest weather forecasts, maps, news and alerts on Yahoo Weather. Find local weather forecasts for Chicago, United States throughout the world ...