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, ...

The condition of the polar vortex influences everyday weather around the globe. Scientist issue warning about concerning ...

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 polar vortex is a whirling cone of low pressure over the poles that's strongest in the winter months due to the increased temperature contrast between the polar regions and the mid-latitudes ...

How a predicted polar-vortex disruption could spur winter’s revenge Forecasters are watching changes in the stratosphere that may trigger a shake-up in the mild weather pattern over the Eastern ...

When the polar vortex is weakened, a piece of it can surge farther south, setting up weather patterns that usher arctic cold into portions of North America and/or Europe.

Some guidance from long-range computer forecast models suggests a lobe of this disrupted polar vortex will first shift toward Europe and then continue moving eastward over the next week to 10 days.

Warm conditions across much of Europe are forecast to give way to periods of unseasonably cool temperatures and stormy weather during April. The first such shift will take place over the weekend ...

This winter, the polar vortex winds have stayed consistently stronger than average, corresponding to anomalously low atmospheric thickness over the Arctic (and generally warmer than averaged ...

The polar vortex and jet stream winds may send it over Europe or Asia. The "Greenland Block" pattern could increase the chances for cold air in the US, however it is too early to determine if this ...