National Weather Service meteorologists warned of "significant" snowfall in some areas, which could disrupt travel.
More than one million people in eastern Montana and the Dakotas are under extreme cold warnings on Monday and Tuesday.
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The Lowell Sun on MSNWinter wonderland: Snow fun, scenic beauty, and the challenge of digging outGreater Lowell transformed into a winter wonderland, as advertised, as a thick blanket of snow covered the area Saturday night, continuing into Sunday.
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