fzus63 kmqt 080900
glfls 
expires:202611082100;;463557

open lake forecast for lake superior
national weather service marquette mi
400 am est sun nov 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...

29.5 inch low pressure moving over northern ontario extends a 29.7 
inch trough over the lake this morning. this low gets absorbed into 
a 29.3 inch low over the canadian maritimes this evening, allowing 
30.0 inch ridging to return over lake superior tonight. by monday 
morning, a 29.6 inch low will move over lake winnipeg, weakening to 
29.7 inches as it moves over northern ontario and brings 29.8 inch 
troughing over lake superior monday night. this trough shifts east 
to quebec tuesday through wednesday as 30.4 inch high pressure 
builds over manitoba and ontario. this high slowly descends 
southeast, reaching western lake superior at 30.2 inches friday.




lsz162-082100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est sun nov 8 2026 /300 am cst sun nov 8 2026/

.early this morning...west winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...west winds 20 to 30 knots veering northwest by late
morning, then diminishing to 15 to 25 knots by mid afternoon.
waves subsiding to 2 to 4 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then backing southwest late. waves
subsiding to calm to 2 feet. 
.monday...south winds 10 to 20 knots veering southwest by late
morning, then increasing to 15 to 25 knots by mid afternoon.
waves building to 1 to 3 feet. 
.monday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.tuesday...west winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots veering north
after midnight. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 2 to 4 feet. 
.thursday...north winds 5 to 15 knots. waves subsiding to calm to
2 feet. 

$$

fzus63 kmqt 080900
glfls 
expires:202611082100;;463558

open lake forecast for lake superior
national weather service marquette mi
400 am est sun nov 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...

29.5 inch low pressure moving over northern ontario extends a 29.7 
inch trough over the lake this morning. this low gets absorbed into 
a 29.3 inch low over the canadian maritimes this evening, allowing 
30.0 inch ridging to return over lake superior tonight. by monday 
morning, a 29.6 inch low will move over lake winnipeg, weakening to 
29.7 inches as it moves over northern ontario and brings 29.8 inch 
troughing over lake superior monday night. this trough shifts east 
to quebec tuesday through wednesday as 30.4 inch high pressure 
builds over manitoba and ontario. this high slowly descends 
southeast, reaching western lake superior at 30.2 inches friday.




lsz263-082100-
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 est sun nov 8 2026

.early this morning...west winds 20 to 30 knots. waves 5 to
8 feet occasionally to 10 feet. 
.today...west winds 20 to 30 knots veering northwest. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.monday...south winds 5 to 15 knots increasing to 10 to 20 knots
by late morning, then veering southwest by mid afternoon. a
slight chance of rain showers in the afternoon. waves building to
1 to 3 feet. 
.monday night...west winds 10 to 20 knots. waves building to 2 to
4 feet. 
.tuesday...west winds 10 to 20 knots. waves 2 to 4 feet. 
.tuesday night...northwest winds 5 to 15 knots veering north
after midnight. waves subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 3 to 5 feet occasionally to 7 feet. 
.thursday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to 1 to 3 feet. 

$$