The polar vortex usually keeps cold Arctic air confined above the North Pole, but experts believe it is starting to shift and ...

“Don’t put your winter jacket and gloves away just yet. ... but the polar vortex could contribute to a sharp drop in temperatures across parts of the U.S. during the week of March 17,” he added.

Depending on the scale, larger breaks in the polar vortex can bring unusually cold temperatures our way. You might find yourself digging out that jacket you haven’t worn in ages or even turning ...

The vortex is essentially an area of low pressure in the upper layers of the atmosphere over the polar region. This vortex consists of powerful westerly winds in the stratosphere, about 10 to 30 ...

On Monday, the polar vortex will reach the Deep South, with temperatures down to the freezing point of 32 degrees Fahrenheit in Atlanta. Wind chills will be in the 20s.

The polar vortex is aways around - it just normally stays near the North Pole. But when it descends into our area, get ready for really cold weather.

During the polar vortex, temperatures could reach 12-25°F below average in some states, according to AccuWeather. “This could end up being the coldest January since 2011 for the U.S. as a whole ...

A polar vortex is set to bring weeks of icy temperatures to the Lower Hudson Valley and New York City. “This could end up being the coldest January since 2011 for the U.S. as a whole,” said ...