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

Around the same time as the heat starts blasting Phoenix, the polar vortex — a system that usually keeps frigid air penned up ...

Forecasters say the heat dome that's baked the West for weeks will shift east. Here's what weather to expect as the calendar ...

Winter weather is back in the East, but the extended forecast has some good news for milder weather later in March.

Hang on to your coats and scarves: While the first part of this week brought a brief reprieve from the brutally cold weather the U.S. has been experiencing since January, frigid temperatures are about ...

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

This year's relentless winter in the East is about to unleash its most savage cold outbreak yet. "A brutally cold weekend awaits more than 100 million people in the northeastern quarter of the nation ...

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.

While all the warmth of the past few days may make it feel like spring is in full effect, forecasters are saying otherwise.

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