National Weather Service Marquette MI
9:44 PM 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 trough of low pressure averaging 29.7 inches will hold across the great lakes through the memorial day weekend. the trough will shift to the lower great lakes and weaken to 29.9 inches on memorial day. high pressure of 30.1 inches will then push across northern ontario and the upper great lakes by monday evening before drifting over quebec on tuesday. a 29.4 inch low just to the south of lake winnipeg will track east into northwestern ontario by early wednesday morning before weakening to 29.5 inches on thursday morning near western lake superior. the low will weaken further to 29.6 inches as it tracks southeast across the upper great lakes through thursday evening.