fzus63 kmqt 292001
glfls 
expires:202610300800;;928402

open lake forecast for lake superior
national weather service marquette mi
400 pm edt thu oct 29 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...

a 30.2 inch high stretching from alberta to the upper mississippi 
valley will build over the lake through friday, strengthening to 
30.3 inches. high pressure shifts to the eastern great lakes on 
saturday and strengthens to 30.5 inches, with ridging of around 30.2 
inches lingering over lake superior through the weekend as the high 
gradually shifts to the eastern seaboard. a 29.5 inch colorado low 
develops on monday and approaches the upper midwest early to mid 
next week.




lsz162-300800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt thu oct 29 2026 /300 pm cdt thu oct 29 2026/

.late this afternoon...west winds 15 to 25 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots becoming southwest less
than 10 knots after midnight, then backing south late. waves calm
to 2 feet. 
.saturday...east winds 5 to 15 knots. a slight chance of rain
showers by mid afternoon. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots becoming southwest
less than 10 knots after midnight. a chance of showers. waves
calm to 2 feet. 
.sunday...southwest winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...southwest winds less than 10 knots. waves calm to
2 feet. 
.monday...east winds 10 to 20 knots. showers likely. waves
building to 2 to 4 feet. 
.tuesday...east winds 15 to 25 knots becoming northeast 10 to
20 knots. showers likely, then a chance of showers. waves
subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 292001
glfls 
expires:202610300800;;928403

open lake forecast for lake superior
national weather service marquette mi
400 pm edt thu oct 29 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...

a 30.2 inch high stretching from alberta to the upper mississippi 
valley will build over the lake through friday, strengthening to 
30.3 inches. high pressure shifts to the eastern great lakes on 
saturday and strengthens to 30.5 inches, with ridging of around 30.2 
inches lingering over lake superior through the weekend as the high 
gradually shifts to the eastern seaboard. a 29.5 inch colorado low 
develops on monday and approaches the upper midwest early to mid 
next week.




lsz263-300800-
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 edt thu oct 29 2026

.late this afternoon...west winds 20 to 30 knots. waves 5 to
8 feet occasionally to 10 feet. 
.tonight...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to 1 to 3 feet. 
.friday...northwest winds 5 to 15 knots backing west in the
afternoon. waves subsiding to calm to 2 feet. 
.friday night...west winds 5 to 15 knots diminishing to less than
10 knots after midnight, then backing south late. waves calm to
2 feet. 
.saturday...south winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...south winds 5 to 15 knots veering southwest
after midnight. a chance of showers. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...southwest winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots increasing to 10 to 20 knots.
showers likely. waves building to 1 to 3 feet. 
.tuesday...southeast winds 10 to 20 knots. showers likely. waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet. 

$$