The polar vortex is splitting — an exceedingly rare phenomenon for this time of year that will be an unusual driver of warmer ...

I delivered my morning weather update, analyzing a significant shift in Michigan’s atmospheric patterns. These are the five ...

DC swings from a warm 50 weekend to a cold start to the week, with highs in the 30s and a wintry mix as the polar vortex and ...

Scientists are investigating how rising temperatures at the North Pole may be disrupting the polar vortex, allowing arctic ...

The cold weather appears to be here to stay in South Jersey, at least until mid-February. A polar vortex is expected to keep ...

As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over both of Earth’s poles 10 to 30 miles above the surface. The term vortex is used to ...

Folks in the central and eastern United States may be wondering: Is winter on the way out? Here's what meteorologists say.

Florida has endured a winter few could have predicted. Since early November, the state has endured at least three rounds of ...

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

In the wake of the historic winter storm that blasted 40 states this weekend, a dome of Arctic air associated with the Polar Vortex is bringing days of life-threatening temperatures to much of the ...

This winter’s harsh run in the East is intensifying, with some of the coldest air so far this season plunging into Vermont this weekend.

An Arctic air mass from Canada is bringing brutally cold temperatures to Michigan and the Northeast. Wind chills in Michigan are expected to reach as low as 10 to 20 degrees below zero. The cold snap ...