Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

The polar vortex is a low-pressure system of cold air ... check out the beautifully simple diagram by the National Oceanic and Atmospheric Administration (NOAA) below. This effect, in part ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it and how does it impact our weather? The polar vortex is ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.

In short, the answer is the polar vortex. But what does that mean? The polar vortex is a “constant feature” that begins to develop sometime in September and persist through sometime in spring ...

And if the polar vortex is to blame. First, a quick refresher on the polar vortex. The polar vortex is a region of very strong winds that form a circle around the North Pole. The vortex is located ...

Much of the country will be hit with extreme low temperatures over the next week as a polar vortex sends cold air down from the North Pole. Real feel temperatures throughout the northeast ...

It's about to get very, very cold for lots of Americans. A series of blasts of polar vortex air from the north will bring subfreezing temperatures as well as ice and snowstorms to 40 US states ...