Three separate rounds of Arctic air have already swept across the central and eastern United States through mid-December, ...

If you couldn’t get enough of the cold temperatures in early December, there’s more on the way for Tennessee this coming ...

An Arctic blast is forecast to usher in multiple waves of dangerous cold to the Midwest and Northeast next week, forecasters ...

An arctic blast will send temperatures across the United States plummeting as bitterly cold air that originated in Siberia will arrive from Canada by week’s end, bringing with it dangerously cold wind ...

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

A break in the polar vortex has been causing extreme cold throughout the United States. More cold weather is on the way later this week. Such a phenomenon is not unusual for this time of the year. For ...

A "shocking" Arctic blast – with temperatures more akin to mid-January than early November – is poised to overspread the eastern half of the U.S. starting around Nov. 8, sending tens of millions into ...

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame. Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not ...

Now might be the time to make sure the furnace is in good shape, as a Polar Vortex that has brought two bone-chilling winters to the Northeast this decade will be bringing an Arctic blast into the ...

Colorado has one more brutally cold night — and one more painfully chilly morning — ahead before the mercury begins a swift climb back into the normal range. Much of the high country will remain under ...

The snow-covered Peace Monument outside the Capitol on Feb. 12. (Jacquelyn Martin/AP) On the heels of successive winter storms that brought heavy snow and ice to a wide swath of the United States, ...