Another arctic blast has sent temperatures plummeting across the United States, bringing “life-threatening” wind chills and dangerous cold to millions of Americans this week. The latest brutal cold snap is again courtesy of the polar vortex — a large area of cold air that spins over the North Pole — dropping some 3,

Counties in multiple states including ones in Arkansas are under an Extreme Cold Warning through Thursday as a winter storm moves through the area.

A brutal air surge in the belly of the nation is heading to the Northeast — and the air in New Jersey may make it feel near zero degrees.

The National Weather Service has issued extreme cold warnings for millions of Americans from the Canadian border to Texas. CBS News correspondent Nicole Valdes reports on the historic low temperatures.