Preparations are underway as an arctic blast dives into the nation's interior and southern regions and pushes a snowstorm into the Mid-Atlantic and Northeast that will be followed by lethal cold.

A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans. See maps of the arctic blast.

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

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

With no teams left in the playoff, the region's long-running domination of the sport appears to be at an end. So what gives? "It’s different when you can’t say, ‘Next guy up!’ like you used to."

A lobe of the polar vortex will arrive in the United States this weekend, bringing the lowest temperatures in years and snow and ice to the East and Deep South.

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

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.

Tens of millions of residents along the East Coast are bracing for several inches of snow Sunday followed by dangerously cold temperatures that will take

The National Weather Service has issued a hard freeze warning for most of East Texas, a winter storm watch for deep East Texas and says confidence that snow will fall

Another blast of winter storms is closing schools, snarling flights and putting millions of residents on alert across parts of the Deep South and south-central U.S.

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