fzus63 kmqt 260807 cca
glfls 
expires:202607262000;;625115

open lake forecast for lake superior...corrected
national weather service marquette mi
407 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-
407 am edt sun jul 26 2026 /307 am cdt sun jul 26 2026/

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

.early this morning...north winds less than 10 knots. patchy dense 
fog. waves calm to 2 feet. 
.today...southeast winds less than 10 knots becoming northeast
5 to 15 knots in the afternoon, then veering east late. patchy dense
fog early. a slight chance of showers and thunderstorms by mid 
afternoon. some thunderstorms may be severe. waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots veering east late.
patchy fog and smoke. 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. areas of dense fog through early afternoon. a slight chance
of showers and thunderstorms. some thunderstorms may be severe.
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 260807 cca
glfls 
expires:202607262000;;625116

open lake forecast for lake superior...corrected
national weather service marquette mi
407 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-
407 am edt sun jul 26 2026

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

.early this morning...southwest winds less than 10 knots. patchy
dense fog. waves calm to 2 feet. 
.today...south winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon, then veering east late. patchy dense fog
early. patchy smoke by mid afternoon. 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. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. areas of dense fog through early
afternoon. a slight chance of showers and thunderstorms. some
thunderstorms may be severe. 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. 

$$