fzus63 kmqt 110953
glfls 
expires:202606111800;;553587

open lake forecast for lake superior
national weather service marquette mi
553 am 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... 

troughing of around 29.5 inches gives way to weak ridging of 29.7 
inches early this afternoon, before a shortwave low riding into the 
upper great lakes this evening drops down to 29.3 inches over the 
eastern lake this evening. behind the low, troughing progressively 
weakens to 29.7 inches friday through friday night. while troughing 
looks to restrengthen a little 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. 




lsz162-111800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
553 am edt thu jun 11 2026 /453 am cdt thu jun 11 2026/

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

.early this morning...southwest winds 10 to 20 knots. widespread
dense fog. waves calm to 2 feet. 
.today...southwest winds 10 to 20 knots. patchy fog through early
afternoon. a chance of showers by mid afternoon. waves building
to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots becoming west 15 to
25 knots after midnight. a chance of showers through midnight.
waves subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.friday...southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon, then diminishing to 15 to 25 knots
late. waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.friday night...west winds 10 to 20 knots backing southwest after
midnight. a slight chance of showers after midnight. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.saturday...west winds 15 to 25 knots. waves building to 2 to
4 feet. 
.saturday night...west winds 15 to 25 knots. waves subsiding to
calm to 2 feet. 
.sunday...west winds 15 to 25 knots. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.monday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves calm to 2 feet. 

$$

fzus63 kmqt 110953
glfls 
expires:202606111800;;553588

open lake forecast for lake superior
national weather service marquette mi
553 am 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... 

troughing of around 29.5 inches gives way to weak ridging of 29.7 
inches early this afternoon, before a shortwave low riding into the 
upper great lakes this evening drops down to 29.3 inches over the 
eastern lake this evening. behind the low, troughing progressively 
weakens to 29.7 inches friday through friday night. while troughing 
looks to restrengthen a little 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. 




lsz263-111800-
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-
553 am edt thu jun 11 2026

...dense fog advisory in effect until 2 pm edt this afternoon...

.early this morning...southwest winds 10 to 20 knots. widespread
dense fog. waves 1 to 3 feet. 
.today...southwest winds 10 to 20 knots. patchy dense fog through
early afternoon. a chance of showers by mid afternoon. waves 1 to
3 feet. 
.tonight...southwest winds 10 to 20 knots becoming west 15 to
25 knots after midnight. a chance of showers. waves subsiding to
calm to 2 feet, then building to 3 to 5 feet occasionally to
7 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 becoming southwest
10 to 20 knots after midnight. a slight chance of showers after
midnight. waves subsiding to 2 to 4 feet. 
.saturday...west winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet. 
.saturday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to 2 to 4 feet. 
.sunday...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. 
.monday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves subsiding to calm to 2 feet. 

$$