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

The North Pole is surrounded by a massive circular upper-air weather phenomenon in the Arctic called the polar vortex. It is ...

A polar vortex disturbance will drive a winter storm in Kentucky, with snow, frigid temps, and wind chills below zero ...

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

More snow is on the way for southern Ontario, with a widespread shot occurring on Wednesday. That will be followed by ...

A storm riding the edge of incoming polar air could bring the D.C. region a meaningful snowfall Sunday, but the exact track ...

A major snow storm is hitting the Northeast this weekend, but what can you expect near you? See the latest NOAA forecast, ...

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

What is the polar vortex? Mississippi weekend weather forecast calls for winter storm with lows in the teens, paired with ...

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

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