A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.

A brutal polar vortex is set to bury the Big Apple in snow Sunday and then deliver deadly single-digit temperatures that will ...

A historic winter storm is poised to produce potentially record-breaking snows from coastal Texas to northern Florida late ...

A rare winter storm is getting set to slam the Gulf Coast and South, with cities from Texas to Florida under Winter Storm Warnings.

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

In Indiana, around zero degrees was likely, the map showed, with temperatures of around three degrees possible in Northern ...

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary ...

Marylanders are bracing for the upcoming polar vortex, expected to bring temperatures into the single digits early this week.

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar ...

President-elect Donald Trump's second inauguration will mark the coldest presidential ceremony in more than 40 years.