A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what ...

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

Here’s the wind chill chart. Notice the four shadings, indicating how long it will take for frostbite. When we get to wind ...

A significant portion of the U.S. is experiencing below-average temperatures due to a disrupted polar vortex, affecting over ...

Cold temperatures are expected to last through the end of the month — and forecasters say that there's a potential for snow ...

Snow is the $64,000 question,” says climatologist Judah Cohen, capturing the peculiar pucker factor involved in late-winter forecasting in a single sentence: ‘People can prepare for the cold, but they ...

Ben Gelber, a meteorologist for NBC4 in Columbus, Ohio, and a Pocono native, said the polar vortex is a large, circular pool ...

A fierce Arctic blast of bitterly cold air is poised to overtake much of the central, eastern and southern U.S. over the next ...

In the coming weeks, cold air will continue for parts of the U.S. thanks to the influence of the polar vortex.

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march across the eastern U.S.