Climate deniers are quick to say ‘I told you so’ when the mercury drops. But a warmer planet impacts weather in ways that can seem counterintuitive. Record cold temperatures are once again expected to ...

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way ...

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

There's a confounding dilemma for many folks trying to make sense of winter weather in the context of climate change.

A disrupted polar vortex will unleash a series of bone-chilling Arctic outbreaks across the eastern United States this month.

Extreme cold warnings span several eastern states as of Friday, with meteorologists warning of frigid wind chills.

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

Add Yahoo as a preferred source to see more of our stories on Google. The polar vortex is a large area of cold, spinning air that sits near the North Pole and exists year-round. When it weakens or ...

You've probably come across the words polar vortex a few times already during this winter season. Maybe you're familiar with what it truly means, or maybe not. We're here today talking about exactly w ...

With this post we’ve invited Paige Klobucnik, an atmospheric sciences student at the University of Houston, to write about ...

The "polar vortex" talk becomes really popular each year. It usually doesn't surface until winter. Still, this season, the eastern U.S. is getting a shot of frigid air as this infamous polar vortex ...

A winter buzzword, explained.