National Weather Service United States Department of Commerce


A powerful early winter storm moved from the Rockies across the northern Plains. Snow began over northeastern Wyoming during the night of Monday, October 11, leaving almost a foot of snow by morning. The snow spread over the Black Hills on Tuesday, October 12, accumulating one to two feet over the northern Black Hills and northern foothills. Heavy rain fell over the plains of western South Dakota, with many locations receiving one to four inches. Strong winds also occurred on the plains, where gusts reached 60 to 80 mph.

Snow-laden pine trees in Spearfish
Heavy snow on trees in Spearfish  Photo courtesy of Amber K
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