fzus63 kmqt 280801
glfls 
expires:202607282000;;740807

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jul 28 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... 

weak ridging builds to near 30.0 inches over lake superior this 
morning and remains until thursday morning. the ridging then gives 
way to weak troughing of 29.9 inches before becoming weak ridging of 
29.9 to 30.0 inches again the rest of this week.




lsz162-282000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt tue jul 28 2026 /301 am cdt tue jul 28 2026/

...dense fog advisory in effect until noon edt /11 am cdt/
today...

.early this morning...northwest winds less than 10 knots. areas
of dense fog. waves calm to 2 feet. 
.today...west winds less than 10 knots becoming south 5 to
15 knots in the afternoon, then backing east late. patchy fog.
waves calm to 2 feet. 
.tonight...east winds less than 10 knots backing north late.
patchy fog. waves calm to 2 feet. 
.wednesday...north winds less than 10 knots becoming east 5 to
15 knots late. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots diminishing to
less than 10 knots after midnight. a slight chance of showers and
thunderstorms after midnight. waves calm to 2 feet. 
.thursday...east winds less than 10 knots becoming north 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...west winds 5 to 15 knots. a chance of showers
through midnight. a chance of thunderstorms. showers likely after
midnight. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots veering northwest. waves calm
to 2 feet. 
.saturday...northeast winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 280801
glfls 
expires:202607282000;;740808

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jul 28 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... 

weak ridging builds to near 30.0 inches over lake superior this 
morning and remains until thursday morning. the ridging then gives 
way to weak troughing of 29.9 inches before becoming weak ridging of 
29.9 to 30.0 inches again the rest of this week.




lsz263-282000-
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-
401 am edt tue jul 28 2026

...dense fog advisory in effect until noon edt today...

.early this morning...north winds less than 10 knots. areas of
dense fog. waves calm to 2 feet. 
.today...west winds less than 10 knots becoming southwest 5 to
15 knots in the afternoon, then backing south late. patchy fog.
waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots becoming southeast less than
10 knots after midnight. patchy fog. waves calm to 2 feet. 
.wednesday...south winds less than 10 knots becoming southeast
5 to 15 knots in the afternoon, then backing east late. waves
calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots. a slight chance of
showers and thunderstorms after midnight. waves calm to 2 feet. 
.thursday...south winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots veering west
after midnight. a chance of showers. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots diminishing to less
than 10 knots. waves calm to 2 feet. 

$$