fzus63 kmqt 110201
glfls 
expires:202606110800;;534040

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

troughing of around 29.5 inches will move across lake superior 
tonight as a low pressure moves through northern ontario at 29.3 
inches. pressure over lake superior holds 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. 




lsz162-110800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt wed jun 10 2026 /900 pm cdt wed jun 10 2026/

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

.rest of tonight...west winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. a chance of showers and a slight
chance of thunderstorms by midnight. patchy dense fog. some
thunderstorms may be severe. waves calm to 2 feet building to
1 to 3 feet. 
.thursday...southwest winds 10 to 20 knots increasing to 15 to
25 knots late. patchy fog through early afternoon. a chance of
showers and a slight chance of thunderstorms by mid afternoon.
waves 1 to 3 feet. 
.thursday night...southwest winds 15 to 25 knots veering west
late. a chance of showers through midnight. waves building to
2 to 4 feet. 
.friday...southwest winds 15 to 25 knots becoming west 20 to
30 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday night...west winds 10 to 20 knots. 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 diminishing to 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.monday...southwest winds 10 to 20 knots becoming west 5 to
15 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 110201
glfls 
expires:202606110800;;534041

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

troughing of around 29.5 inches will move across lake superior 
tonight as a low pressure moves through northern ontario at 29.3 
inches. pressure over lake superior holds 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. 




lsz263-110800-
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 wed jun 10 2026

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

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

$$