Americans have been warned to brace for more winter storms as Arctic winds are set to dump more ice and snow amid freezing temperatures.

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

Have you ever wondered why some winters are mild while others bring freezing temperatures and snowstorms? One of the key players in these dramatic shifts is something called the polar vortex.

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 ...

Here's what to know. The polar vortex is an area of swirling cold air in the Earth's polar regions. During winter, the polar vortex at the North Pole expands, sending cold air southward ...

Basically, the term polar vortex describes a large area of low pressure and cold air that usually sits at both of the Earth’s poles, according to the National Weather Service. It becomes ...

According to AccuWeather, a polar vortex occurs when several low-pressure bursts of cold air move in from the Arctic Circle. It exists about 15 to 30 miles above the Earth's surface. The air ...

What exactly is a polar vortex, and how can you prepare for it? Here's what to know. The polar vortex is an area of swirling cold air in the Earth's polar regions. During winter, the polar vortex at ...

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 ...

Of interest: Wind advisory in effect for Lower Hudson Valley Thursday, chilly temps through weekend According to AccuWeather, a polar vortex occurs when several low-pressure bursts of cold air move in ...