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, ...

Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way that will send much of the United States a devastating dose of winter weather later this week ...

When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation that usually spins quietly above the pole can suddenly send lobes of Arctic ...

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 ...

El Niño's record-breaking force could enter a chaotic dance with another wintertime powerhouse: The polar vortex.

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 ...

A tank of gas ended up costing several Spring Branch drivers thousands of dollars in vehicle repairs — and they say they are struggling to get answers or compensation from the gas station responsible.