A combination of weather conditions may make it colder than usual across parts of the Central and Northern U.S. next week.

The phrase “historic polar vortex” evokes a country locked in ice from the Great Lakes to the Gulf, but the most reliable ...

Scientists are still trying to understand the atmospheric disturbances.

A rare weather phenomenon that hasn't occurred since 1968 is expected to plunge temperatures across parts of the United States.

A rare stratospheric warming event high above the Arctic could disrupt the polar vortex and send colder air toward Texas in ...

Over the next 10 days, scientists say, changes in the stratosphere will upend weather patterns and set the stage for a cold, snowy December across parts of the Northern Hemisphere.

But the country could be in for shockingly cold weather soon as the polar vortex creeps down from the North Pole and across ...

A rare stratospheric event is forecast to unleash bone-chilling air from a weakening vortex across the US and New England, ...

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

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