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

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.

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 ...

The mere mention of the term “polar vortex” can set your head spinning (and maybe eyes rolling). It’s got to be clickbait, right? Or maybe someone dreamed up the name for views? Is it a storm?

A lobe of the polar vortex, a stormy ring that typically keeps the coldest air locked up near the North Pole, will dip southward into the United States this weekend into next week. Polar air ...

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However, the polar vortex could bring severe weather conditions, including heavy snowfall and freezing temperatures, that could affect travel conditions or prompt school closures. According to ...

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 ...

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar vortex invades the nation and sends temperatures tumbling to levels not ...

It's one of the coldest winters the US has had in years, and a polar vortex has even brought snow to Florida. Now's a great time to pick up a space heater if your home's heating system isn't ...

As a forecasted polar vortex threatens to bring extreme low temperatures to the northeast over the next week, it will be best to stay indoors as much as possible. But what about protecting your ...