A polar vortex is coming toward the U.S. Here’s how it will impact Utah
The polar vortex is expected to reach the Utah-Idaho border sometime in the late afternoon and evening Friday as it continues ...
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 ...
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.
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.