fzus63 kmqt 101401
glfls 
expires:202606102000;;504067

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed jun 10 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... 

weak ridging of 29.8 inches this morning gives way to troughing by 
this afternoon, with the troughing deepening to around 29.5 inches 
by this evening as the parent low tracks into northern ontario at 
29.3 inches. pressure over lake superior hold at around 29.6 inches 
on thursday until another colorado low lifts into the upper great 
lakes at around 29.5 inches in the evening. behind the low, 
troughing progressively weakens to 29.8 inches friday through friday 
night. while troughing may restrengthen a little to 29.7 inches on 
saturday, expect weak ridging of 30.0 inches to return to lake 
superior on sunday. 




lsz162-102000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt wed jun 10 2026 /900 am cdt wed jun 10 2026/

...dense fog advisory in effect until 8 am edt /7 am cdt/
thursday...

.rest of today...east winds 10 to 20 knots backing northeast in
the afternoon, then veering east late. patchy dense fog. a slight
chance of showers by late morning. a chance of thunderstorms.
showers likely by mid afternoon. waves 1 to 3 feet. 
.tonight...south winds 5 to 15 knots becoming southwest 10 to
20 knots after midnight, then increasing to 15 to 25 knots late.
showers likely and a chance of thunderstorms through midnight.
some thunderstorms may be severe. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.thursday...southwest winds 15 to 25 knots. a chance of showers
by mid afternoon. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.thursday night...southwest winds 15 to 25 knots veering west
after midnight. a chance of showers. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.friday...southwest winds 20 to 30 knots. a slight chance of
showers by mid afternoon. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 101401
glfls 
expires:202606102000;;504068

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed jun 10 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... 

weak ridging of 29.8 inches this morning gives way to troughing by 
this afternoon, with the troughing deepening to around 29.5 inches 
by this evening as the parent low tracks into northern ontario at 
29.3 inches. pressure over lake superior hold at around 29.6 inches 
on thursday until another colorado low lifts into the upper great 
lakes at around 29.5 inches in the evening. behind the low, 
troughing progressively weakens to 29.8 inches friday through friday 
night. while troughing may restrengthen a little to 29.7 inches on 
saturday, expect weak ridging of 30.0 inches to return to lake 
superior on sunday. 




lsz263-102000-
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 am edt wed jun 10 2026

...dense fog advisory in effect until 8 am edt thursday...

.rest of today...east winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. patchy dense fog. a chance of showers
and thunderstorms. waves calm to 2 feet building to 2 to 4 feet. 
.tonight...south winds 10 to 20 knots becoming southwest 15 to
25 knots after midnight. showers likely and a chance of
thunderstorms through midnight. some thunderstorms may be severe.
waves building to 3 to 5 feet occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots. a chance of showers
by mid afternoon. waves building to 3 to 6 feet occasionally to
8 feet. 
.thursday night...southwest winds 15 to 25 knots becoming west
20 to 30 knots after midnight. a chance of showers. waves
subsiding to 2 to 4 feet, then building to 4 to 7 feet
occasionally to 9 feet. 
.friday...southwest winds 20 to 30 knots. waves building to 4 to
8 feet occasionally to 10 feet. 
.friday night...west winds 15 to 25 knots. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 

$$