How the Polar Vortex Can Bring Arctic Blasts to the U.S. Vast weather patterns can carry blasts of frigid air far from the ...

A rush of Arctic air will plunge parts of North America into bitter cold this weekend, bringing heavy snow, strong winds and ...

Some of the coldest air in years is expected to plunge into the High Plains, Midwest and finally the East in the coming days ...

This blast of cold weather is due to activity of the polar vortex.

Most of the US will enjoy milder temperatures on Thursday, but the warmup will be brief as a polar vortex will send ... 50 degrees in some spots across America come Monday morning.” ...

But what is a polar vortex? The polar vortex is the jet stream above the Arctic Circle. It is very cold. Most of the time it stays up there, but there are circumstances where it can dip down into ...

The polar vortex is an enormous ring of powerful winds ... pushing 30-40 degrees below normal for tens of millions of people across North America. Brutally cold days and locally historic low ...

It’ll be a memorable cold outbreak as gusty winds make the frigid air dangerously cold in many locations in the coming days ...

But when the polar vortex is disturbed, it can cause dangerous cold air to plunge south over North America. An unstable vortex can hit quickly and linger for days on end. For Metro Detroit ...

The coldest weather of the season to date will be due to a phenomenon called a polar vortex, an upper-level jet stream that typically circulates around both the North and South Poles, but can push ...

The disturbance in the Polar Vortex aloft will establish extreme cold conditions. Temperatures are forecast to plunge into a deep freeze, pushing 30-40 degrees below normal for tens of millions of ...

The mere mention of the term "polar ... circumpolar vortex is a counterclockwise-spinning (northern hemisphere) swirl of super-cold air in the upper atmosphere that sits atop the North Poles.