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.
Wind chill temperatures as low as -15 degrees anticipated in central Ohio during next week's polar vortex
The 10 Weather Impact team issued Alert Days for next week because of the polar vortex being responsible for the cold ...
Polar vortex to send bitter cold to the U.S. including DC area
The polar vortex is a ring of cold air that typically circles the Arctic. A strong jet stream essentially acts like a fence, ...
Polar vortex to blast millions across US with life-threatening cold next week: 'There’s no escaping this'
Most of the U.S. will enjoy milder temperatures on Thursday, but the warmup will be brief as a polar vortex will send ...
Bundle up! Temperatures expected to plummet Saturday night as polar vortex moves into area
A polar vortex is going to bring very cold air to much of southern Ontario, including Waterloo region, Guelph and Wellington ...
Arctic airmass to plunge much of U.S. into deep freeze over weekend
Dangerously cold weather will put much of the United States into a deep freeze over the weekend as temperatures are expected to plunge by up to 40 degrees behind an Arctic airmass.