135 million under threat of extreme cold and snow
135 million people across 40 states are under threat of snow and extreme cold with the real feel temperature expected to reach -55 degrees in some places. NBC News' Erin McLaughlin reports.
135 million people across 40 states are under threat of snow and extreme cold with the real feel temperature expected to reach -55 degrees in some places. NBC News' Erin McLaughlin reports.
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