National Weather Service Marquette MI
9:40 AM Wednesday August 23.
occasional wave height is the average of the highest 1/10 of the wave spectrum. synopsis, an enhanced pressure gradient continues to linger across lake superior today as a 29.3 inch low lifts across quebec and a high pressure ridge of 30.1 inches slowly pushes east towards the upper great lakes region. this 30.1 inch surface ridge will move over the upper great lakes tonight and persist across the area into early next week.