As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

Add Yahoo as a preferred source to see more of our stories on Google. A snow threat barreling towards Texas sparks warnings from state meteorologists and the National ...

Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

Tens of millions of people are in the path of a major winter storm. Federal cuts threaten efforts to understand the causes of ...

In the wake of the historic winter storm that blasted 40 states this weekend, a dome of Arctic air associated with the polar ...

A severe winter storm in January 2026, impacting the U.S. from Texas to New England, highlights the dynamic role of the stratospheric polar vortex. Despite global warming, intense winter storms ...

Meteorologist Sven Sundgaard predicted this wacky winter weather back in October, and he explains what's happening now and ...

This upper-level temperature animation shows a deep trough plunging Arctic air south from Canada, allowing the polar vortex to funnel the coldest air of the season into the eastern United States.

The polar vortex is sending arctic blasts and chilly temperatures to most of the United States, and states from Texas to Oklahoma could see snow, sleet and ice. As of Wednesday, Jan. 21, millions of ...