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'Life-threatening cold' expected as polar vortex stretches across U.S. after deadly weekend flooding

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Polar vortex brings record cold across U.S., winter storm buries Mid-Atlantic states in snow

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Polar Vortex explained in under 120 seconds

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What the Polar Vortex Will Do to Earth this Decade

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Polar vortex brings dangerous cold

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Polar Vortex in Canada: 3 Key Facts You Should Know

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Answering \

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What is a Polar Vortex?

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Frigid cold temperatures expected as polar vortex sweeps across U.S. after deadly weekend flooding

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Polar vortex to bring bone-chilling temps across US

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Polar vortex: Canadians bundled up amid extreme cold warnings

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Polar Vortex explained: Why global warming can cause freezing winter

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Polar Vortex explained - why will it be so cold in the south?

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Polar Vortex Set To Invade Canada And The U.S. With Dangerous Cold | #forecast

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Polar vortex causes extreme cold warnings across 11 states

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