fzus63 kmqt 050801
glfls 
expires:202607052000;;444032

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jul 5 2026

for waters beyond 5 nautical miles of shore on lake superior.

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 30.2 inch high over the hudson bay will push southeast into quebec 
through monday morning, extending a 30.1 inch ridge over lake 
superior. meanwhile, low pressure will move from northern 
saskatchewan to the hudson bay, deepening to 29.5 inches as it 
reaches the hudson bay on tuesday morning. as the low departs the 
hudson bay, moving east, it will extend a 29.8 inch trough over lake 
superior on wednesday. thereafter high pressure at 29.9 inches 
builds over the upper great lakes for thursday and friday.




lsz162-052000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt sun jul 5 2026 /300 am cdt sun jul 5 2026/

.early this morning...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.today...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.monday...east winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon, then backing north late. waves calm to
2 feet. 
.monday night...north winds less than 10 knots becoming southwest
5 to 15 knots after midnight. a slight chance of showers and
thunderstorms. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots veering north
after midnight. a chance of showers and thunderstorms. waves calm
to 2 feet. 
.wednesday...northeast winds 5 to 15 knots backing north. showers
likely. a chance of thunderstorms. a chance of showers. waves
calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots backing north. waves
calm to 2 feet. 

$$

fzus63 kmqt 050801
glfls 
expires:202607052000;;444033

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jul 5 2026

for waters beyond 5 nautical miles of shore on lake superior.

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 30.2 inch high over the hudson bay will push southeast into quebec 
through monday morning, extending a 30.1 inch ridge over lake 
superior. meanwhile, low pressure will move from northern 
saskatchewan to the hudson bay, deepening to 29.5 inches as it 
reaches the hudson bay on tuesday morning. as the low departs the 
hudson bay, moving east, it will extend a 29.8 inch trough over lake 
superior on wednesday. thereafter high pressure at 29.9 inches 
builds over the upper great lakes for thursday and friday.




lsz263-052000-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
400 am edt sun jul 5 2026

.early this morning...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.today...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots diminishing to less than
10 knots late. waves calm to 2 feet. 
.monday...east winds less than 10 knots. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering southwest after
midnight. a slight chance of showers and thunderstorms after
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots becoming north
less than 10 knots after midnight. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots backing north. showers
likely. a chance of thunderstorms. a chance of showers. waves
calm to 2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$