fzus63 kmqt 031401
glfls 
expires:202606032000;;116703

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed jun 3 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... 

high pressure of 30.3 inches centered over lower michigan this 
morning shifts southeast today through thursday, weakening to 30.2 
inches by tonight as it moves south of the lower great lakes. 
meanwhile, a 29.8 inch low approaches from the northwest, moving 
over lake superior on thursday. troughing persists over the lake 
through friday, deepening to near 29.7 inches. weak ridging of near 
29.9 inches returns saturday assocaited with a weak high of 30.0 
inches over eastern hudson bay. sunday, the high builds to 30.1 
inches over quebec while 29.4 inch low pressure spins over 
saskatchewan. monday, the nigh builds to 30.3 inches over the mouth 
of the st. lawrence river while a 29.6 inch low over northern 
manitoba extends troughing south over the great plains. 




lsz162-032000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt wed jun 3 2026 /900 am cdt wed jun 3 2026/

.rest of today...southwest winds 5 to 15 knots backing southeast
late. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots veering south after
midnight. a slight chance of showers and thunderstorms after
midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots. a chance of showers and a
slight chance of thunderstorms. waves building to 1 to 3 feet,
then subsiding to calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots veering west
after midnight. a slight chance of thunderstorms through
midnight. a chance of rain showers. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.sunday...northeast winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 031401
glfls 
expires:202606032000;;116704

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed jun 3 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... 

high pressure of 30.3 inches centered over lower michigan this 
morning shifts southeast today through thursday, weakening to 30.2 
inches by tonight as it moves south of the lower great lakes. 
meanwhile, a 29.8 inch low approaches from the northwest, moving 
over lake superior on thursday. troughing persists over the lake 
through friday, deepening to near 29.7 inches. weak ridging of near 
29.9 inches returns saturday assocaited with a weak high of 30.0 
inches over eastern hudson bay. sunday, the high builds to 30.1 
inches over quebec while 29.4 inch low pressure spins over 
saskatchewan. monday, the nigh builds to 30.3 inches over the mouth 
of the st. lawrence river while a 29.6 inch low over northern 
manitoba extends troughing south over the great plains. 




lsz263-032000-
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 jun 3 2026

.rest of today...southwest winds 5 to 15 knots increasing to
10 to 20 knots in the afternoon, then backing south late. waves
calm to 2 feet building to 1 to 3 feet. 
.tonight...south winds 5 to 15 knots. a slight chance of showers
after midnight. waves subsiding to calm to 2 feet, then building
to 1 to 3 feet. 
.thursday...south winds 5 to 15 knots. a chance of showers. waves
subsiding to calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots. a slight chance
of thunderstorms through midnight. a chance of rain showers.
waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. a slight chance of
showers. waves calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.sunday...east winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 

$$