National Weather Service United States Department of Commerce

Winter Storm of March 31, 2018


A potent and fast-moving winter storm impacted the western Great Lakes on March 31st dropping a swath of 7 to 10 inches from central Minnesota, northern Wisconsin, and southern Upper Michigan. The snow came down very heavily, with snow falling at rates 1 to 2 inches per hour.  In Norway, MI, our CO-OP observer measured 2.7 inches of snow in one hour at peak intensity!




Regional mid-level water vapor (e.g. moisture, shaded) and surface pressure (black lines) from 3 AM EDT to 2 PM EDT, March 31, 2018. 

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