fzus63 kmqt 170301
glfls 
expires:202511170900;;540759

open lake forecast for lake superior
national weather service marquette mi
1001 pm est sun nov 16 2025

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 30.0 inch high over the upper mississippi river valley builds to 
30.1 inches by monday morning. then the high shifts east to the 
great lakes basin on monday, rising to 30.2 inches monday night. the 
high remains relatively stationary on tuesday while a 29.8 inch low 
to the south fizzles out. the high rises to 30.3 inches on 
wednesday, moving east to new england for wednesday night and 
thursday. meanwhile, a 29.9 inch trough develops over the plains 
wednesday night, deepening to at least 29.7 inches as it tracks east 
over northern ontario thursday and thursday night. a high pressure 
of 30.0 to 30.1 inches looks to descend southeast from the canadian 
prairies on friday.



lsz162-170900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm est sun nov 16 2025 /901 pm cst sun nov 16 2025/

.rest of tonight...northwest winds 10 to 20 knots diminishing to
5 to 15 knots late. waves 2 to 4 feet subsiding to calm to
2 feet. 
.monday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.monday night...north winds 5 to 15 knots veering northeast by
midnight. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots becoming northwest
10 to 20 knots. a chance of rain showers. waves calm to 2 feet. 
.friday...north winds 10 to 20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 170301
glfls 
expires:202511170900;;540760

open lake forecast for lake superior
national weather service marquette mi
1001 pm est sun nov 16 2025

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 30.0 inch high over the upper mississippi river valley builds to 
30.1 inches by monday morning. then the high shifts east to the 
great lakes basin on monday, rising to 30.2 inches monday night. the 
high remains relatively stationary on tuesday while a 29.8 inch low 
to the south fizzles out. the high rises to 30.3 inches on 
wednesday, moving east to new england for wednesday night and 
thursday. meanwhile, a 29.9 inch trough develops over the plains 
wednesday night, deepening to at least 29.7 inches as it tracks east 
over northern ontario thursday and thursday night. a high pressure 
of 30.0 to 30.1 inches looks to descend southeast from the canadian 
prairies on friday.



lsz263-170900-
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-
1001 pm est sun nov 16 2025

.rest of tonight...northwest winds 15 to 25 knots veering north
by midnight, then diminishing to 10 to 20 knots late. waves 3 to
6 feet occasionally to 8 feet subsiding to 2 to 4 feet. 
.monday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.monday night...north winds 5 to 15 knots veering northeast late.
waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots diminishing to less than
10 knots in the afternoon. waves calm to 2 feet. 
.tuesday night...south winds less than 10 knots becoming
southwest 5 to 15 knots after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots. waves calm to 2 feet.
.wednesday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southwest winds 5 to 15 knots becoming west 10 to
20 knots. a chance of rain showers. waves building to 1 to
3 feet. 
.friday...north winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$