BISMARCK, N.D. (AP) — The work week in the Dakotas is beginning with bitter cold and heavy snow.

Wind chills plummeted to as low as the minus 30s in the two states early Monday, as a storm moved in from the west. The National Weather Service posted numerous weather warnings and advisories.

Forecasters said about half a foot of snow could fall in western and south central North Dakota and in eastern South Dakota by the end of the day.

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