fzus63 kmqt 080801
glfls 
expires:202608082000;;816105

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat aug 8 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 29.8 inch trough continues to move east of lake superior early 
this morning. by daybreak, the up will be situated between a 29.5 
inch quebec low and a 30.0 inch four corners high. this will drive 
weak and ill-defined 29.9 inch ridging/troughing over lake superior 
through monday night. weak ridging of 30.0 inches, extending between 
a 30.2 inch bermuda high and 30.0 inch ridging over the western 
canadian provinces, returns for monday and tuesday before decreasing 
to 29.9 inches on wednesday.




lsz263-082000-
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 sat aug 8 2026

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots becoming southwest 15 to
25 knots in the afternoon. waves building to 2 to 4 feet. 
.tonight...southwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. a chance of showers. a slight chance of
thunderstorms after midnight. waves subsiding to calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots veering west in the
afternoon, then backing southwest late. a chance of showers
through early afternoon. waves calm to 2 feet. 
.sunday night...southwest winds 5 to 15 knots becoming west less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.monday night...southwest winds 5 to 15 knots becoming west less
than 10 knots after midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 080801
glfls 
expires:202608082000;;816104

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat aug 8 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 29.8 inch trough continues to move east of lake superior early 
this morning. by daybreak, the up will be situated between a 29.5 
inch quebec low and a 30.0 inch four corners high. this will drive 
weak and ill-defined 29.9 inch ridging/troughing over lake superior 
through monday night. weak ridging of 30.0 inches, extending between 
a 30.2 inch bermuda high and 30.0 inch ridging over the western 
canadian provinces, returns for monday and tuesday before decreasing 
to 29.9 inches on wednesday.




lsz162-082000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt sat aug 8 2026 /300 am cdt sat aug 8 2026/

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet. 
.today...west winds 10 to 20 knots backing southwest in the
afternoon, then increasing to 15 to 25 knots late. waves building
to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight, then veering north late. a chance of
showers. a slight chance of thunderstorms after midnight. waves
subsiding to calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. a slight chance of
showers through early afternoon. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.monday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.monday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots veering north. waves
calm to 2 feet. 
.wednesday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$