What is polar vortex and how much snow is expected in US? A winter storm linked to polar vortex disruption has impacted ...

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

The United States is facing a storm unlike any seen in a long time. The National Weather Service has confirmed a blast of ...

The polar vortex is a large-scale weather pattern that typically keeps the coldest air confined to the Arctic region. However, during winter months, this vortex can become unstable, leading to ...

A polar vortex brings bitterly cold Arctic air into southern Ontario. Here’s what it is and what you can expect.

The big winter (and popular) topic is dusted off very early this season as frigid air plunges south next weekend. But what is ...

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.

What is the polar vortex? This article explains what a polar vortex is in simple terms, how it influences winter weather in ...

“Snow is the $64,000 question,” says climatologist Judah Cohen, capturing the peculiar pucker factor involved in late-winter ...

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

An extreme polar vortex moving from the Arctic across North America is expected to arrive in Quebec by Friday and persist ...