National Weather Service Marquette MI
9:43 PM Friday June 22.
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, 29.8 inch high pressure ridging over eastern lake
superior will drift eastward into southeastern ontario by early
saturday morning. a 29.7 inch low will track across lower
michigan saturday morning and be located over lake erie saturday
afternoon. another ridge will begin to build over the upper great
lakes saturday evening and continue building through the day
sunday. it will be located over lake superior by monday morning
with a maximum pressure of 30.3 inches and remain stationary
through monday evening. the high will shift eastward into southern
ontario monday night. a low pressure trough of 29.7 inches will
lift northeastward across minnesota tuesday and be located over
lake superior by wednesday morning and will quickly departs to the
east wednesday evening.