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

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

Temperatures will plummet by up to 40 degrees this weekend as an arctic blast spreads across much of the U.S., including the Deep South.

Dangerously cold weather spread over the Midwest on Saturday and is headed toward the East Coast, where temperatures well below seasonal norms are expected starting late Sunday and into next week.

A powerful winter storm that dumped heavy snow and glazed roads with ice across much of Texas and Oklahoma lumbered eastward into southern U.S. states Friday, prompting governors to declare states of emergency and shuttering schools across the region.

Brutal cold will open the door for a winter storm to take a somewhat unusual track through the South and create treacherous conditions.

Snow, freezing rain and chilly temperatures will sink to the southern U.S. states in the coming days, likely resulting in hazardous travel and widespread power outages

A powerful winter storm that dumped heavy snow and glazed roads with ice across much of Texas and Oklahoma lumbered eastward into southern U.S. states Friday, prompting

The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously frigid conditions.

thanks in part to moisture provided by a coastal trough of low atmospheric pressure forming Monday in deep South Texas and Mexico. However, if that coastal low tracks farther south, it could pull ...

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A powerful winter storm that dumped heavy snow and glazed roads with ice across much of Texas and Oklahoma lumbered eastward into southern US states overnight, prompting governors to declare states of emergency and shuttering schools across the region.