fzus63 kmqt 080901
glfls 
expires:202511082100;;046982

open lake forecast for lake superior
national weather service marquette mi
401 am est sat nov 8 2025

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...

ridging will build over the lake this weekend and 30.6 inch high 
pressure develops over the great plains, with the ridge over the 
lake strengthening from 29.8 inches on saturday to 30.2 inches 
through sunday night. the ridge quickly breaks down early next week 
as a 29.4 inch trough sweeps across the lake tuesday into wednesday 
morning. by wednesday night the lake will be between 30.1 inch 
ridging over the plains and a deep 28.8 inch low over the hudson bay.



lsz162-082100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am est sat nov 8 2025 /301 am cst sat nov 8 2025/

.early this morning...north winds 10 to 20 knots. waves calm to
2 feet. 
.today...north winds 10 to 20 knots. waves calm to 2 feet. 
.tonight...north winds 15 to 25 knots backing northwest late.
waves building to 2 to 4 feet. 
.sunday...northwest winds 20 to 30 knots veering north. a chance
of snow showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.sunday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. a slight chance of snow showers. waves
subsiding to 2 to 4 feet. 
.monday...north winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon. waves subsiding to calm to 2 feet. 
.monday night...west winds 10 to 20 knots backing southwest after
midnight. waves building to 1 to 3 feet. 
.tuesday...southwest winds 15 to 25 knots becoming west 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 
.wednesday...northwest gales to 35 knots. waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 080901
glfls 
expires:202511082100;;046983

open lake forecast for lake superior
national weather service marquette mi
401 am est sat nov 8 2025

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...

ridging will build over the lake this weekend and 30.6 inch high 
pressure develops over the great plains, with the ridge over the 
lake strengthening from 29.8 inches on saturday to 30.2 inches 
through sunday night. the ridge quickly breaks down early next week 
as a 29.4 inch trough sweeps across the lake tuesday into wednesday 
morning. by wednesday night the lake will be between 30.1 inch 
ridging over the plains and a deep 28.8 inch low over the hudson bay.



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-
401 am est sat nov 8 2025

.early this morning...north winds 5 to 15 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.today...northwest winds 5 to 15 knots becoming north 10 to
20 knots by mid afternoon. a slight chance of snow showers in the
afternoon. waves calm to 2 feet. 
.tonight...north winds 15 to 25 knots becoming northwest 10 to
20 knots late. a slight chance of snow showers. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.sunday...northwest winds 15 to 25 knots veering north. snow
showers likely in the morning, then a chance of snow showers in
the afternoon. waves building to 3 to 6 feet occasionally to
8 feet. 
.sunday night...north winds 20 to 30 knots. a chance of snow
showers. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.monday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. waves subsiding to 2 to 4 feet. 
.monday night...west winds 5 to 15 knots becoming southwest 10 to
20 knots after midnight. waves subsiding to calm to 2 feet, then
building to 1 to 3 feet. 
.tuesday...southwest winds 20 to 30 knots becoming northwest
gales to 35 knots. a chance of snow showers. waves building to
4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.wednesday...northwest gales to 40 knots. a chance of rain
showers. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 4 to 7 feet occasionally to 9 feet. 

$$