National Weather Service Marquette MI
10:09 AM Saturday May 26.
waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. occasional wave height is the average of the highest 1/10 of the wave spectrum. synopsis, a low pressure trough averaging 29.7 inches will linger across the great lakes through the memorial day weekend. the trough will weaken to 29.9 inches on monday as it shifts to the lower great lakes. high pressure of 30.1 inches will follow across northern ontario and the upper great lakes by late monday. on tuesday, the 30.1 inch high will shift over quebec. a 29.5 inch low tracks east out of the dakotas on early wednesday morning and moves across the north half of minnesota through the day on wednesday.