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.
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 ...
It’ll be a memorable cold outbreak as gusty winds make the frigid air dangerously cold in many locations in the coming days ...
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 ...
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 ...
The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar vortex disruption ...
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.
It's going to get cold in Tennessee. Meteorologists predict freezing temperatures for much of the state. Here's the latest.