A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.

A rare winter storm churned across the U.S. Gulf Coast on Tuesday, bringing heavy snow, ice and wind gusts to a region where flurries are unusual, while much of the United States remained in a deep freeze.

Blizzards are set to bring heavy snow, sleet, and freezing rain all the way along the Gulf Coast from Texas to North Carolina - conditions usually only seen further north.

Houston’s two major airports, George Bush Intercontinental and Hobby, are also closed Tuesday, while Hartsfield-Jackson Atlanta International Airport, the world’s busiest, is pretreated roadways and airfield surfaces in preparation for the winter weather, according to spokesperson Andrew Gobeil.

A rare winter storm charging through Texas and the northern Gulf Coast on Tuesday has closed highways and airports and prompted the first blizzard warning for southeast Texas and southwest Louisiana.

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."

Much of the country is seeing frigid temperatures while snow is impacting the U.S. as far south as Texas, Louisiana and the Florida panhandle. Kati Weis and Skyler Henry have more.

Clarke County Emergency Management Agency has been preparing for days ahead of this threat and is working in close contact with MDOT and other local authorities.

“I’ve lived in South Louisiana my whole life ... and Charleston, S.C. The storm’s final stretch of deep snow, of two to seven inches, will fall across the Outer Banks of North Carolina overnight as the storm moves into the Atlantic Ocean.

The snow problem was compounded by sub-freezing temperatures, making roads impassable.

Dangerous cold temperatures remained across Oklahoma, with the lowest temperatures in nearly four years hitting the state.