It’s beginning to look a lot like winter across parts of the north-central United States as waves of snow and frigid air have frequented the region this week, but the next blast of Arctic air will be the coldest one yet.
Temperatures will tumble to the lowest levels so far this season, and in some cases, they will challenge records that have stood for more than 100 years, as a blast of Arctic air sweeps across the Plains and Rocky Mountains.
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