Polar Vortex returns: Blast of Arctic air to impact nearly 40 states

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Polar Vortex returns: Blast of Arctic air to impact nearly 40 states

Polar Vortex returns: Blast of Arctic air to impact nearly 40 states
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Polar Vortex returns: Blast of Arctic air to impact nearly 40 states

CBSTV Videos 1:11 mins

As the Arctic air moves in from the North, the Midwest and Northeast are facing below average temperatures with the possibility of more snow. CBS Chicago station WBBM's meteorologist Megan Glaros tracks the latest.

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