• 1963: Winds of 50 to 60 mph resulted in blowing snow all day on the 7th, which reduced visibilities to near zero and produced snow drifts several feet deep in many areas. Snowfall in eastern South Dakota was generally from 3 to 7 inches with 1 to 2 inches in the western part of the state. Storm total snowfall included 8 inches at Sis

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