A rare split polar Vortex will plunge millions of Americans into freezing temperatures as it's set to blast powerful cold air across the country around Valentine's Day. Forecasters have warned of ...

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 ...

Further disruptions in the polar vortex are expected to allow for Arctic air to seep south into New York.

Antarctica’s polar vortex could be about to split in two for the first time in more than 20 years after a series of sudden spikes in stratospheric temperatures.

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 ...

Here’s what we know This is what a split in the polar vortex looks like! Highlighted by the red boxes, you can see two distinct circulation centers, versus strictly one.

This is what a split in the polar vortex looks like! Highlighted by the red boxes, you can see two distinct circulation centers, versus strictly one. This allows for cold air to flood southward ...

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.

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

This differs from other coverage of polar vortexes which generalize some large cold spells as solely caused by a split in the vortex. The New York Times published an article asserting the polar vortex ...