fzus63 kmqt 072101
glfls 
expires:202611080900;;436666

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat nov 7 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...

pressure falls from 30.0 inches over lake superior this afternoon to 
29.6 inches tonight as a 29.5 inch low crosses northern ontario. 
this low gets absorbed into a 29.3 inch low over the canadian 
maritimes by sunday evening, allowing 30.0 inch ridging to return 
over lake superior sunday night. by monday morning, a 29.6 inch low 
will move over lake winnipeg, weakening to 29.7 inches as it moves 
over northern ontario and brings 29.8 inch troughing over lake 
superior monday night. this trough shifts east into quebec tuesday 
through wednesday as 30.4 inch high pressure builds over manitoba 
and ontario. 




lsz162-080900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est sat nov 7 2026 /300 pm cst sat nov 7 2026/

.late this afternoon...southwest winds 20 to 30 knots. waves 3 to
5 feet occasionally to 7 feet. 
.tonight...southwest winds 20 to 30 knots veering west by
midnight. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday...west winds 20 to 30 knots veering northwest by late
morning, then diminishing to 15 to 25 knots by mid afternoon.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots by midnight, then backing southwest late. waves
subsiding to calm to 2 feet. 
.monday...south winds 5 to 15 knots becoming southwest 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.monday night...west winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday...west winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots veering north
after midnight. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 2 to 4 feet. 
.thursday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 072101
glfls 
expires:202611080900;;436667

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat nov 7 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...

pressure falls from 30.0 inches over lake superior this afternoon to 
29.6 inches tonight as a 29.5 inch low crosses northern ontario. 
this low gets absorbed into a 29.3 inch low over the canadian 
maritimes by sunday evening, allowing 30.0 inch ridging to return 
over lake superior sunday night. by monday morning, a 29.6 inch low 
will move over lake winnipeg, weakening to 29.7 inches as it moves 
over northern ontario and brings 29.8 inch troughing over lake 
superior monday night. this trough shifts east into quebec tuesday 
through wednesday as 30.4 inch high pressure builds over manitoba 
and ontario. 




lsz263-080900-
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 pm est sat nov 7 2026

.late this afternoon...southwest winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.tonight...southwest winds 20 to 30 knots becoming west to
30 knots with a few gale force gusts to 35 knots possible by
midnight, then diminishing to 20 to 30 knots late. waves building
to 5 to 9 feet occasionally to 11 feet. 
.sunday...west winds 20 to 30 knots veering northwest. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots by midnight, then becoming west 5 to 15 knots
late. waves subsiding to calm to 2 feet. 
.monday...south winds 10 to 20 knots veering southwest in the
afternoon. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.monday night...west winds 10 to 20 knots. waves building to 2 to
4 feet. 
.tuesday...west winds 10 to 20 knots. waves 2 to 4 feet. 
.tuesday night...northwest winds 5 to 15 knots veering north
after midnight. waves subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots increasing to 10 to
20 knots. a chance of rain showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.thursday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to 1 to 3 feet. 

$$