Three rounds of cold Arctic air from a shifting polar vortex are expected to plunge much of the central and eastern U.S. into ...

A strong polar vortex doesn't cause cold weather — it does the opposite. Here's what to know about polar vortices, how they ...

The Upper Midwest and Northern Plains have been hit by Canada's freezing temperatures. On Thursday, Dec. 4, wind chills ...

Polar vortex disturbance is causing frigid Artic air to surge southward, bringing cold temperatures and possibly snow to many ...

Sudden Stratospheric Warming (SSW) events occur during the winter months and can lead to Arctic outbreaks across the US. They have to do with the polar vortex and the jet stream. A stable polar vortex ...

The culprit behind the country’s somewhat wacky weather, or at least part of it, is the (aforementioned) probable sudden ...

High above the North Pole, about 10 to 30 miles above Earth’s surface, sits a massive whirlpool of icy air known as the polar vortex. Think of it as a giant spinning top of frigid air trapped by ...

The surges of Arctic air will generate rounds of flurries and squalls in certain locations and may assist igniting storms ...