NEW YORK CITY - As a wave of extreme cold grips the U.S. this weekend, many are wondering about the polar vortex – a ...

A Polar vortex has covered the Philadelphia region under a canopy of frigid temperatures, but many people may not realize what a Polar vortex actually is, and the dangers — like frostbite — such ...

High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its potential arrival in the United States over the next few weeks is cause ...

A Polar Vortex brought temperatures so cold in January 2014 that it froze Niagara Falls. Signals of a rare sudden stratospheric warming in the next two weeks have some forecasting an imminent Arctic ...

Boston has seen just one day so far this month where the average temperature was above the seasonal norm, daring me to ask — are you over the cold yet? Astronomical winter hasn’t even arrived (that ...

As the polar vortex begins to stir, subtle clues point to the coming seasonal shift. So, when will freezing temperatures ...

The weeks after Thanksgiving might just be a tease for some intense Arctic cold that could arrive later in December. So, cold weather lovers — your time appears to be approaching. And snow lovers, the ...