fzus63 kmqt 171502
glfls 
expires:202511172100;;567977

open lake forecast for lake superior
national weather service marquette mi
1001 am est mon nov 17 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...
high pressure averaging 30.1 inches will build over lake superior 
today through tuesday while a 28.8 inch low moves north through the 
canadian maritimes. 30.2 inch ridging will continue to encompass the 
great lakes basin wednesday, shifting into new england by thursday 
as a 29.8 inch low develops over northern ontario.



lsz162-172100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am est mon nov 17 2025 /901 am cst mon nov 17 2025/

.rest of today...north winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.tonight...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. a slight chance of rain showers in the
afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 10 to 20 knots. a chance of
rain showers. waves calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots veering northwest.
rain showers likely. waves calm to 2 feet. 
.friday...northwest winds 10 to 20 knots backing west. waves calm
to 2 feet. 

$$

fzus63 kmqt 171502
glfls 
expires:202511172100;;567978

open lake forecast for lake superior
national weather service marquette mi
1001 am est mon nov 17 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...
high pressure averaging 30.1 inches will build over lake superior 
today through tuesday while a 28.8 inch low moves north through the 
canadian maritimes. 30.2 inch ridging will continue to encompass the 
great lakes basin wednesday, shifting into new england by thursday 
as a 29.8 inch low develops over northern ontario.



lsz263-172100-
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 am est mon nov 17 2025

.rest of today...northwest winds 10 to 20 knots diminishing to
5 to 15 knots. waves 2 to 4 feet subsiding to calm to 2 feet. 
.tonight...north winds 5 to 15 knots veering northeast late.
waves calm to 2 feet. 
.tuesday...north winds 5 to 15 knots becoming east less than
10 knots by late morning, then veering west by mid afternoon.
waves calm to 2 feet. 
.tuesday night...southwest winds less than 10 knots increasing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. waves building to
1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots. a chance of
rain showers. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.thursday...southwest winds 10 to 20 knots becoming northwest
15 to 25 knots. rain showers likely. waves building to 3 to
5 feet occasionally to 7 feet. 
.friday...northwest winds 15 to 25 knots becoming west 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$