Meteorologist Tyler Hamilton tracks the movement of a polar vortex, detailing a significant drop in temperatures across ...

Polar air is descending over Canada dropping temperatures nation-wide. The Weather Network's meteorologist Laura Power has ...

High above the North Pole, about 10 to 30 miles above Earth’s surface, sits a massive whirlpool of icy air known as the polar ...

A polar vortex — a large area of low pressure — is heading south from the Arctic, bringing with it cold weather across many ...

As winter approaches, the intriguing dance of La Niña and a disrupted polar vortex raises the tantalizing question: will ...

In 2014, the term “polar vortex” burst on the scene across Canada and the U.S. as temperatures plunged. In some places, it ...

Multiple doses of Arctic air will bring significantly cold weather to much of Canada as we head into the start of meteorological winter ...

Early-season stratospheric warming events spark hype around frigid temperatures. Learn the myths and the science about the ...

Some forecasters say a complex dance involving the polar vortex could send some of Earth's most extreme cold toward the ...

For folks who long for cold, the weeks after Thanksgiving might just be a tease for some intense Arctic cold that could ...

The alarming trend of record-low sea ice in Hudson Bay has dire consequences for polar bears, who are fasting on land and ...