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As a low pressure system deepened off the east coast of the United States on the weekend of December 4th-5th, northerly winds over the central part of North America funneled cold, Arctic air south across the western Great Lakes. This set up a long duration lake effect snow event that lasted into December 8th. The lake effect snow was heavy at times in parts of the Gogebic Range in Iron County, Wisconsin. An observer in Gile reported a total snowfall accumulation of 30 inches, although it had settled and compacted to a depth of 19 inches on the afternoon of December 8th. An observer in Montreal reported 19 inches of snowfall through the morning of the 8th, with an estimated 4 inches during the subsequent day, bringing the overall total to an estimated 23 inches. Just across the Wisconsin-Michigan border, an observer in Ironwood reported a total of 16.5 inches through the morning of the 8th.
To learn more about lake effect snow, visit our lake effect snow page.