Extreme weather as Polar Vortex splits in North America

Polar Vortex Splits, Extreme Cold & Snow Coming - LIVE COVERAGE

The polar vortex has split, which will bring weeks of extreme cold and stormy weather to the eastern US. Get the latest details in our LIVE COVERAGE.

Forecasters say the polar vortex split will cause frigid air from the Arctic to flow south into the eastern United States, starting as soon as this weekend. A major snowstorm, Winter Storm Harper, is forecast for the weekend. The extreme cold is predicted to be at its worst in late January and early February, and could continue well into February. In this interactive live stream, host Steve Lookner brings you the latest updates on the upcoming cold and stormy winter weather caused by the polar vortex split, and he'll also read your comments and questions on the air!