fzus63 kmqt 100801
glfls 
expires:202606102000;;490984

open lake forecast for lake superior
national weather service marquette mi
400 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-
400 am edt wed jun 10 2026 /300 am cdt wed jun 10 2026/

...dense fog advisory in effect until 11 am edt /10 am cdt/ this
morning...

.early this morning...east winds 5 to 15 knots. areas of dense
fog. a chance of showers and thunderstorms. waves calm to 2 feet.
.today...east winds 10 to 20 knots backing northeast in the
afternoon. patchy dense fog. a chance of showers and a slight
chance of thunderstorms through early afternoon. showers and
thunderstorms likely by mid afternoon. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.tonight...east winds 10 to 20 knots becoming southwest 15 to
25 knots after midnight. showers likely and a chance of
thunderstorms through midnight. waves building to 2 to 4 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. 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 100801
glfls 
expires:202606102000;;490985

open lake forecast for lake superior
national weather service marquette mi
400 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-
400 am edt wed jun 10 2026

...dense fog advisory in effect until 11 am edt this morning...

.early this morning...east winds 5 to 15 knots. areas of dense
fog. waves calm to 2 feet. 
.today...east winds 5 to 15 knots increasing to 10 to 20 knots
late. patchy dense fog through early afternoon. a chance of
showers and thunderstorms. waves building to 2 to 4 feet. 
.tonight...southeast winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. showers likely and a chance of
thunderstorms through midnight. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.thursday...southwest winds 15 to 25 knots. a chance of showers
by mid afternoon. waves subsiding 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. 

$$