fzus63 kmqt 120201
glfls 
expires:202606120800;;592422

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt thu jun 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... 

a 29.3 inch low lifts through the eastern lake tonight. behind the 
low, troughing progressively weakens to 29.7 inches tomorrow through 
tomorrow night. while troughing looks to restrengthen to 29.6 inches 
on saturday, expect weak ridging of 29.8 inches to return to lake 
superior on sunday. a 29.7 inch trough moves through the lake sunday 
night before 29.8 inch ridging pushes back in on monday. 




lsz162-120800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt thu jun 11 2026 /900 pm cdt thu jun 11 2026/

.rest of tonight...southwest winds 10 to 20 knots becoming west
15 to 25 knots after midnight, then backing southwest late. a
chance of showers by midnight. waves calm to 2 feet building to
2 to 4 feet. 
.friday...southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday night...west winds 15 to 25 knots backing southwest after
midnight. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.saturday...west winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.saturday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...west winds 15 to 25 knots. waves building to 2 to
4 feet. 
.sunday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202606120800;;592423

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt thu jun 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... 

a 29.3 inch low lifts through the eastern lake tonight. behind the 
low, troughing progressively weakens to 29.7 inches tomorrow through 
tomorrow night. while troughing looks to restrengthen to 29.6 inches 
on saturday, expect weak ridging of 29.8 inches to return to lake 
superior on sunday. a 29.7 inch trough moves through the lake sunday 
night before 29.8 inch ridging pushes back in on monday. 




lsz263-120800-
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-
1000 pm edt thu jun 11 2026

.rest of tonight...southwest winds 5 to 15 knots becoming west
15 to 25 knots after midnight. showers by midnight, then a slight
chance of showers after midnight. waves 1 to 3 feet subsiding to
calm to 2 feet, then building to 3 to 5 feet occasionally to
7 feet. 
.friday...southwest winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet. 
.friday night...southwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight, then increasing to 15 to 25 knots
late. waves subsiding to 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.saturday...west winds 15 to 25 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.saturday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.sunday...west winds 15 to 25 knots increasing to 20 to 30 knots
by mid afternoon. waves building to 3 to 6 feet occasionally to
8 feet. 
.sunday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to 2 to 4 feet. 
.monday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves subsiding to calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots backing south. waves
calm to 2 feet. 

$$