Taken from: en.m.wikipedia.org/wiki/List_of_storms_on_the_Great_LakesSuperstorm Sandy (2012)
The cold wave that merged with Hurricane Sandy at the end of October, 2012 brought strong winds and high waves across the Great Lakes. Lake Michigan recorded wave heights of 20 to 22 feet and wind gusts of 60 to 70 mph. The southern end of Lake Michigan experienced a lake level rise of 15 inches as the winds pushed water down the lake. Lake Huron experienced 23-foot waves and a wind gust of 74 mph was recorded at Port Gratiot at the southern end of the lake. Most freighters stayed in harbor instead of trying to run through the storm.