What is a polar vortex? Latest weather predictions as Tennessee faces hazardous cold air
It's going to get cold in Tennessee. Meteorologists predict freezing temperatures for much of the state. Here's the latest.
USA Today3d
Where will it snow in the US? See where the polar vortex is set to make an icy impact
Editor's Note for Sat. Jan. 18: A polar vortex is set to impact much of the US. Click here for the latest update. A polar vortex is forecasted to blanket most of the continental United States ...
Scientific American5d
How the Polar Vortex Can Bring Arctic Blasts to the U.S.
“These events never happen over the Antarctic,” says Aditi Sheshadri, an atmospheric scientist at Stanford University. And the absence of these polar vortex disturbances in the Southern ...
Polar vortex is coming to Louisville area; Here's how cold it will get
Any sort of wind along with the bitter cold will make for frostbite in as little as 15 to 20 minutes in the incoming arctic ...
Reuters3d
Polar vortex set to envelop much of US in freezing temperatures
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 ...
How climate instability may be disrupting the polar vortex
These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary ...
The Denver Post3d
Everything you need to know about the polar vortex bringing extreme cold to Colorado
A polar vortex will plunge Colorado into bitter, sub-zero cold this weekend and could bring up to 10 inches of snow in some parts of the Denver metro, National Weather Service meteorologists say.