National Weather Service Marquette MI
3:59 PM Monday October 23.
occasional wave height is the
average of the highest 1/10 of the wave spectrum.
synopsis, a low pressure trough of 29.7 inches over eastern lake
superior this evening will exit across southern ontario tonight. the
trough will then give way to low pressure of 29.4 inches organizing
over saginaw bay tonight. as this low lifts north to eastern upper
michigan on tuesday morning, it will rapidly deepen to 28.9 inches.
the low will then meander across the northern lake huron shoreline
on tuesday night as it weakens to 29.3 inches. as the low weakens
further on wednesday while lifting toward southern quebec, a 29.7
inch high pressure ridge will reach lake superior. another low
pressure at 29.4 inches over the northern plains wednesday evening
will track east, reaching the upper great lakes on thursday night.
this low will move across the upper great lakes and weaken to 29.7
inches over southern ontario on friday night. a 30.1 inch ridge will
then shift over the upper great lakes on saturday.