fzus63 kmqt 021401
glfls 
expires:202609022000;;777507

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed sep 2 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...

the 

a 29.8 inch low will continue to slowly move east over eastern 
ontario today reaching western quebec by thursday morning. a broad 
29.9 inch trough over the upper great lakes will shift east as the 
low departs ontario tonight and a 29.9 inch ridge will move into the 
area, building to 30.0 inches by friday afternoon. ridging will 
build to 30.1 inches for sunday night and monday.




lsz263-022000-
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 am edt wed sep 2 2026

.rest of today...northwest winds less than 10 knots becoming west
5 to 15 knots in the afternoon, then backing southwest late.
waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots becoming north less than
10 knots after midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots becoming east 15 to
25 knots late. waves calm to 2 feet. 
.thursday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a chance of showers and a slight chance
of thunderstorms. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots. a slight chance of showers.
waves building to 1 to 3 feet. 
.friday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...east winds 5 to 15 knots. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots becoming northeast 15 to
25 knots. a chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 021401
glfls 
expires:202609022000;;777506

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed sep 2 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...

the 

a 29.8 inch low will continue to slowly move east over eastern 
ontario today reaching western quebec by thursday morning. a broad 
29.9 inch trough over the upper great lakes will shift east as the 
low departs ontario tonight and a 29.9 inch ridge will move into the 
area, building to 30.0 inches by friday afternoon. ridging will 
build to 30.1 inches for sunday night and monday.




lsz162-022000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt wed sep 2 2026 /900 am cdt wed sep 2 2026/

.rest of today...west winds 5 to 15 knots backing south late.
waves calm to 2 feet. 
.tonight...west winds less than 10 knots becoming northeast 5 to
15 knots after midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon, then becoming northeast 15 to 25 knots
late. a slight chance of showers by mid afternoon. waves building
to 1 to 3 feet. 
.thursday night...northeast winds 10 to 20 knots. a chance of
showers and thunderstorms. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.friday...east winds 15 to 25 knots backing northeast by mid
afternoon. a slight chance of showers. waves building to 2 to
4 feet. 
.friday night...northeast winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers and thunderstorms. waves calm to
2 feet. 
.sunday...east winds 5 to 15 knots becoming northeast 15 to
25 knots. a chance of showers. waves building to 1 to 3 feet. 

$$