National Weather Service Marquette MI
9:35 AM Monday April 23.
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 ridge of 30.4 inches over new england and the
western great lakes will shift slowly off the eastern seaboard
today. a 30.1 inch trough will follow across lake superior tonight
into tuesday. another high pressure ridge of 30.2 inches will
follow on wednesday. as the second ridge exits on wednesday
evening, a trough of 29.8 inches will move into northern ontario
through wednesday night and then sweep across lake superior
through thursday. a 30.1 inch ridge will shift over the upper
great lakes on friday as a 29.7 inch low over northwestern ontario
tracks southward into the upper great lakes on early saturday