fzus63 kmqt 252001
glfls 
expires:202607260800;;595372

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jul 25 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... 

troughing around 29.8 inches persists over lake superior through 
sunday morning, deepening to 29.8 inches by sunday night. a 29.6 to 
29.7 inch clipper low moves into the upper great lakes or upper 
midwest by monday before departing east towards the st. lawrence 
seaway on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz162-260800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt sat jul 25 2026 /301 pm cdt sat jul 25 2026/

.late this afternoon...southwest winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots diminishing to less than
10 knots after midnight, then veering north late. waves calm to
2 feet. 
.sunday...east winds 5 to 15 knots backing northeast late. patchy
fog through early afternoon. a slight chance of showers and
thunderstorms through early afternoon. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. a chance of
showers and a slight chance of thunderstorms. waves calm to
2 feet. 
.monday...northeast winds 5 to 15 knots. a chance of showers and
a slight chance of thunderstorms. waves calm to 2 feet. 
.monday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.tuesday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots diminishing to
less than 10 knots after midnight. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. waves calm to 2 feet.
.thursday...east winds 5 to 15 knots veering west. a chance of
showers. waves calm to 2 feet. 

$$

fzus63 kmqt 252001
glfls 
expires:202607260800;;595373

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jul 25 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... 

troughing around 29.8 inches persists over lake superior through 
sunday morning, deepening to 29.8 inches by sunday night. a 29.6 to 
29.7 inch clipper low moves into the upper great lakes or upper 
midwest by monday before departing east towards the st. lawrence 
seaway on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz263-260800-
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-
401 pm edt sat jul 25 2026

.late this afternoon...southwest winds 5 to 15 knots. patchy fog.
waves 1 to 3 feet subsiding to calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots diminishing to less than
10 knots after midnight, then backing south late. patchy fog.
waves calm to 2 feet. 
.sunday...south winds less than 10 knots becoming east 5 to
15 knots in the afternoon, then backing northeast late. patchy
fog through early afternoon. a slight chance of showers and
thunderstorms. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. a slight chance of
showers through midnight. a slight chance of thunderstorms. a
chance of showers after midnight. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a chance of showers and a slight
chance of thunderstorms. waves calm to 2 feet. 
.monday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.tuesday...northeast winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...northeast winds less than 10 knots veering east
after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots veering south. waves calm
to 2 feet. 
.thursday...south winds 5 to 15 knots veering west. a chance of
showers. waves calm to 2 feet. 

$$