The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...

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

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary ...

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame.

It's going to get cold in Tennessee. Meteorologists predict freezing temperatures for much of the state. Here's the latest.

An arctic blast will send temperatures across the United States plummeting as bitterly cold air that originated in Siberia ...

Frigid air that normally stays trapped in the Arctic has escaped, plunging deep into the United States for an extended visit ...

The polar vortex is always around. It is a channel of strong winds high up in the atmosphere that circles the poles. One over ...

Florida is officially out snowing several Canadian cities on a monthly level, too, beating out places like Toronto, Ont., and St. John's, Nfld., with their January monthly snow totals so far. As of ...

Americans were bracing Thursday for frigid temperatures that forecasters said could produce life-threatening conditions, with ...

The polar vortex is a large area of low pressure, winds, and cold air surrounding both of the Earth’s poles, according to the ...

The mere mention of the term "polar vortex" can set your head spinning (and maybe eyes rolling). It’s got to be clickbait, ...