fzus63 kmqt 261401
glfls 
expires:202607262000;;637637

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun jul 26 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 over lake superior deepens to 29.7 
inches by tonight. a 29.6 to 29.7 inch clipper low then moves into 
the upper great lakes or upper midwest by monday before departing 
east towards the mid-atlantic on tuesday. behind the clipper, weak 
ridging of 29.9 to 30.0 inches returns to lake superior tuesday into 
thursday.




lsz162-262000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt sun jul 26 2026 /901 am cdt sun jul 26 2026/

...dense fog advisory in effect until 11 am edt /10 am cdt/ this
morning...

.rest of today...east winds 5 to 15 knots backing northeast in
the afternoon, then veering east late. patchy fog. a slight
chance of showers and thunderstorms by mid afternoon. waves calm
to 2 feet. 
.tonight...northeast winds 5 to 15 knots veering east late.
patchy smoke through midnight. patchy fog. a chance of showers
and a slight chance of thunderstorms. some thunderstorms may be
severe. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. patchy fog. a slight chance of showers and thunderstorms.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.monday night...north winds 5 to 15 knots diminishing to less
than 10 knots after midnight. 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 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...northeast winds 5 to 15 knots backing north. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 261401
glfls 
expires:202607262000;;637638

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun jul 26 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 over lake superior deepens to 29.7 
inches by tonight. a 29.6 to 29.7 inch clipper low then moves into 
the upper great lakes or upper midwest by monday before departing 
east towards the mid-atlantic on tuesday. behind the clipper, weak 
ridging of 29.9 to 30.0 inches returns to lake superior tuesday into 
thursday.




lsz263-262000-
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-
1001 am edt sun jul 26 2026

...dense fog advisory in effect until 11 am edt this morning...

.rest of today...southeast winds less than 10 knots becoming
northeast 5 to 15 knots in the afternoon, then veering east late.
patchy fog. a slight chance of showers and thunderstorms by mid
afternoon. some thunderstorms may be severe. waves calm to
2 feet. 
.tonight...east winds 5 to 15 knots backing northeast after
midnight. patchy smoke through midnight. patchy fog. a slight
chance of showers and thunderstorms. some thunderstorms may be
severe through midnight. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. patchy fog. a slight chance of
showers. waves building to 1 to 3 feet, then subsiding to calm to
2 feet. 
.monday night...north winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.tuesday...northeast winds less than 10 knots. waves calm to
2 feet. 
.tuesday night...east winds less than 10 knots veering southeast
after midnight. waves calm to 2 feet. 
.wednesday...east winds less than 10 knots becoming southeast
5 to 15 knots. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots veering west. a chance of
showers. waves calm to 2 feet. 

$$