A bicycle messenger struggles through the snow in downtown Cleveland on Friday. Mark Duncan/AP hide caption

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Around the Nation

Yes, The Weather Is Polar. No, It's Not The Vortex

Meteorologists are annoyed by the hype around the phrase "polar vortex." This week's frigid snap, they say, was just a regular old cold front.

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Scenes from the Apostle Islands National Lakeshore in Bayfield, Wis., where Lake Superior's ice is thick enough to walk to the area's sea caves for the first time in five years. Derek Montgomery for MPR News hide caption

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National Weather Service radar image, from 7:41 a.m. ET on Dec. 29, of storms moving over Los Angeles. wrh.noaa.gov hide caption

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