Even in a warming climate, brutal cold snaps still hammer parts of the U.S., and a new study uncovers why. High above the ...

The mechanism involves atmospheric waves that bounce between the upper atmosphere and ground level, amplifying weather patterns and making them more extreme. Scientists call this “stratospheric wave ...

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. In a study appearing in Science Advances, ...

Much of the U.S. is being blasted by ice, snow and wind, as the polar vortex that dipped south over the weekend is maintaining its frigid grip.

The polar vortex that has dealt the most brutal winter to much of the US in recent years is about to be broken down – but not before unleashing a late-season cold and the biggest yet. The polar ...

The United States has been at the epicenter of the planet’s most unusually cold conditions early in 2025. The polar vortex is to blame.

The polar vortex has taken on an unexpected pattern this winter - one that’s made part of the United States the most unusually cold place on the planet, at least so far this year. While the ...

A National Weather Service map shows what is forecast to be the coldest polar vortex in the US this winter (Picture: National Weather Service) The tenth and coldest polar vortex of the season is ...

Polar vortex to bring frigid temperatures, snow and ice to millions of Americans About 60 million people are forecast to experience subzero temperatures. The polar vortex may also fuel yet another ...

The polar vortex is coming back. After a half-month hiatus, frigid air will again surge across the United States beginning this weekend through next week, as the unusually cold blob of air dips ...