fzus63 kmqt 110900
glfls 
expires:202611112100;;629394

open lake forecast for lake superior
national weather service marquette mi
400 am est wed nov 11 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...

lake superior is currently between a low of 29.4 inches over 
northeast quebec, a 30.2 inch high over northern manitoba, a 30.1 
inch high over louisiana, and a 29.9 inch low over south dakota. the 
latter low deepens to 29.8 inches over illinois wednesday morning as 
the manitoba high builds to 30.3 inches. by wednesday night, the low 
deepens to 29.6 inches south of lake erie as the high further builds 
to 30.4 inches. as the low pushes off the new england shore at 29.4 
inches thursday night, high pressure weakens to 30.3 inches over 
northwestern ontario. this high slowly settles over lake superior 
through saturday, still at 30.3 inches. the high expands over the 
upper great lakes monday at 30.5 inches and remains overhead through 
tuesday.




lsz162-112100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est wed nov 11 2026 /300 am cst wed nov 11 2026/

.early this morning...north winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.today...northwest winds 5 to 15 knots becoming north 10 to
20 knots by late morning, then increasing to 15 to 25 knots by
mid afternoon. a slight chance of rain showers. waves building to
3 to 5 feet occasionally to 7 feet. 
.tonight...north winds 20 to 30 knots diminishing to 15 to
25 knots late. a slight chance of rain showers. a slight chance
of snow showers after midnight. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday...north winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves subsiding to 1 to
3 feet. 
.thursday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.friday...north winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon. waves subsiding to calm to 2 feet. 
.friday night...north winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots veering southwest. waves calm
to 2 feet. 

$$

fzus63 kmqt 110900
glfls 
expires:202611112100;;629395

open lake forecast for lake superior
national weather service marquette mi
400 am est wed nov 11 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...

lake superior is currently between a low of 29.4 inches over 
northeast quebec, a 30.2 inch high over northern manitoba, a 30.1 
inch high over louisiana, and a 29.9 inch low over south dakota. the 
latter low deepens to 29.8 inches over illinois wednesday morning as 
the manitoba high builds to 30.3 inches. by wednesday night, the low 
deepens to 29.6 inches south of lake erie as the high further builds 
to 30.4 inches. as the low pushes off the new england shore at 29.4 
inches thursday night, high pressure weakens to 30.3 inches over 
northwestern ontario. this high slowly settles over lake superior 
through saturday, still at 30.3 inches. the high expands over the 
upper great lakes monday at 30.5 inches and remains overhead through 
tuesday.




lsz263-112100-
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 wed nov 11 2026

.early this morning...northeast winds 5 to 15 knots. a slight
chance of showers. waves calm to 2 feet. 
.today...northwest winds 5 to 15 knots becoming north 10 to
20 knots by late morning, then increasing to 15 to 25 knots by
mid afternoon. a chance of rain showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.tonight...north winds 20 to 30 knots diminishing to 15 to
25 knots late. a chance of rain and snow showers. waves building
to 4 to 8 feet occasionally to 10 feet. 
.thursday...north winds 15 to 25 knots. a chance of snow showers.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.thursday night...north winds 15 to 25 knots. a chance of snow
showers. waves building to 3 to 6 feet occasionally to 8 feet. 
.friday...north winds 10 to 20 knots. a chance of snow showers.
waves subsiding to 2 to 4 feet. 
.friday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...north winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 
.sunday...north winds less than 10 knots becoming southwest 5 to
15 knots. waves calm to 2 feet. 

$$