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.

Here's the latest on the winter storm. A historic winter storm is poised to produce potentially record-breaking snows from ...

Imagine the polar vortex as a giant, icy whirlpool far above the Earth, keeping frigid Arctic air contained near the north ...

There is even a polar vortex on our sun. So, when you hear about the polar vortex acting up, get ready to layer up and brace yourself for some possible serious winter weather.

How the Polar Vortex Can Bring Arctic Blasts to the U.S. Vast weather patterns can carry blasts of frigid air far from the ...

A polar vortex over southern Ontario means Waterloo region, Guelph and Wellington County will experience very cold ...

A powerful polar vortex was set to hit the Big Apple on Sunday ... Forecasters declared a winter weather advisory for New York City from 1 p.m. until early Monday morning — and the snow had ...

People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...

Next Tuesday and Wednesday are Weather Aware Days due to very cold conditions brought on by the polar vortex coupled with an ...

Make sure to pack on some extra thick layers this week, because a bitterly cold Arctic outbreak is set to bring some of the ...