A volatile clash between a supercharged Pacific and a fractured polar vortex could unleash a winter of violent temperature ...

It’s a pattern responsible for holding back the coldest temperatures on the planet. The lowest readings ever recorded in Canada and around the northern hemisphere occurred when this Arctic feature ...

Snow season has gotten off to a fast start across swaths of the northern United States this year. Fueled in part by an unusually early disruption to the polar vortex — which is now easing — 18 states ...

Add Yahoo as a preferred source to see more of our stories on Google. Lisa Muscat carries her dog Zoey to safety after a water main break in Detroit caused massive flooding, triggering evacuations, ...

While researchers have sometimes connected weather extremes to man-made global warming, usually it's not done in real time. Now a study is asserting a link between climate change and both the ...

The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter and keeps some of the coldest ...