fzus63 kmqt 300201
glfls 
expires:202606300800;;138717

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon jun 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... 

tonight, a 29.4 inch low will rotate around lake winnipeg, deepening 
to 29.1 inches by tuesday morning.  this low wobbles around southern 
manitoba thorugh tuesday, weakening to 29.5 inches as it crosses 
northern ontario wednesday. thursday morning, the low will further 
weaken to 29.6 inches over northern quebec while 30.0 inch high 
pressure builds over the us southeast and northern manitoba and 
broad 29.8 inch low pressure spreads over the high plains. friday 
into the weekend, the high over canada moves into hudson bay, 
building to 30.1 inches. 




lsz162-300800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt mon jun 29 2026 /900 pm cdt mon jun 29 2026/

.rest of tonight...northeast winds 10 to 20 knots veering east
after midnight, then becoming south 5 to 15 knots late. patchy
fog. showers likely by midnight. a chance of thunderstorms. a
chance of showers after midnight. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots late. patchy fog through early afternoon. waves
subsiding to calm to 2 feet. 
.tuesday night...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of showers
and thunderstorms by mid afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 5 to 15 knots. a chance of
showers and a slight chance of thunderstorms. waves calm to
2 feet. 
.thursday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots backing northeast
after midnight. a chance of showers. waves calm to 2 feet. 
.friday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 300201
glfls 
expires:202606300800;;138718

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon jun 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... 

tonight, a 29.4 inch low will rotate around lake winnipeg, deepening 
to 29.1 inches by tuesday morning.  this low wobbles around southern 
manitoba thorugh tuesday, weakening to 29.5 inches as it crosses 
northern ontario wednesday. thursday morning, the low will further 
weaken to 29.6 inches over northern quebec while 30.0 inch high 
pressure builds over the us southeast and northern manitoba and 
broad 29.8 inch low pressure spreads over the high plains. friday 
into the weekend, the high over canada moves into hudson bay, 
building to 30.1 inches. 




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-
1000 pm edt mon jun 29 2026

...dense fog advisory in effect until 8 am edt tuesday...

.rest of tonight...southeast winds 10 to 20 knots veering south
late. patchy dense fog. a chance of showers and thunderstorms.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots backing south late.
patchy fog. waves subsiding to calm to 2 feet. 
.tuesday night...southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a slight chance of showers and
thunderstorms through midnight. some thunderstorms may be severe.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of showers
and thunderstorms by mid afternoon. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. showers likely through midnight. a
chance of thunderstorms. a slight chance of showers after
midnight. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.thursday night...southwest winds 5 to 15 knots. waves subsiding
to calm to 2 feet. 
.friday...northeast winds 5 to 15 knots backing west. a chance of
showers. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots veering east. a chance
of showers. waves calm to 2 feet. 

$$