The stratospheric polar vortex is entering its seasonal collapse. But that doesn’t mean calm weather is coming. What's ...

A recent satellite photo captured a stunning scene of sediment swirling across the West Florida Shelf after an extreme cold ...

Michigan and the Great Lakes are bracing for another cold shot later month as a polar vortex split in the stratosphere nudges frigid Arctic air south.

Every winter, millions of people brace for news about the polar vortex - that vast, spinning mass of frigid Arctic air high in the stratosphere that occasionally escapes its usual boundaries and ...

A rare extension of the Polar Vortex core is currently disrupting the seasonal transition across the Northern Hemisphere. As ...

A sudden stratospheric warming event that occurred March 4-8 is starting to show its effects, and its impacts will continue ...

A rapidly intensifying storm system over the northern High Plains will move eastward toward the Great Lakes Thursday night, ...

Dangerously cold temperatures combined with wind gusts up to 60 mph are expected to cause life-threatening conditions across parts of the Midwest, Mid-Atlantic and Northeast to close out the week, ...

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.

Warm, spring-like temperatures across the Midwest and Northeast are considered a "false spring" by forecasters. An Arctic blast, driven by the polar vortex, is expected to bring colder weather around ...