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

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 ...

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 ...

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. In a study appearing in Science Advances, researchers found that two specific patterns in the polar vortex, a swirling ...

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

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

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

The polar vortex, the notorious swirl of winds around a low pressure area in the upper atmosphere over the Arctic, has split in two. Since the polar vortex tends to be associated with some of the ...

The atmospheric warming may cause the vortex to become stretched or displaced off of its pole-centric position. But on occasion it can cause the vortex to split entirely in two. That, meteorologists ...

Heavy snow is expected in a -5C Arctic blast later this month due to a rare polar vortex and weather maps show the areas of the UK worst affected from the flurries ...

A late cold snap could affect the UK, due to a polar vortex collapse that is likely to cause extreme winter conditions across North America and Canada.