National Weather Service Marquette MI
10:01 AM Sunday August 20.
occasional wave height is the average of the highest 1/10 of the wave spectrum. synopsis, a 29.8 inch trough over northern minnesota will move across lake superior this afternoon and reach the eastern great lakes on tuesday. a 30.2 inch high pressure extending from manitoba to nebraska tuesday night will move over wisconsin thursday morning and remain over the great lakes through friday.