fzus63 kmqt 241401
glfls 
expires:202607242000;;522422

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 24 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... 

30.0 inch remnant ridging over lake superior this morning gives way 
to 29.8 inch troughing tonight as a parent 29.3 inch low tracks 
across hudson bay. pressure holds at around 29.8 inches over the 
lake through early sunday. a 29.6 inch clipper low then moves into 
the upper great lakes or upper midwest by monday before departing 
east towards the st. lawrence seaway at 29.4 inches on tuesday. 
behind the clipper, weak ridging of 29.8 to 29.9 inches returns to 
lake superior tuesday into wednesday.




lsz162-242000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt fri jul 24 2026 /901 am cdt fri jul 24 2026/

.rest of today...southwest winds 10 to 20 knots backing south
late. waves calm to 2 feet. 
.tonight...south winds 15 to 25 knots veering southwest after
midnight. a chance of showers and thunderstorms. waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.saturday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.saturday night...north winds 5 to 15 knots veering northeast
after midnight. a slight chance of showers after midnight. waves
calm to 2 feet. 
.sunday...east winds 5 to 15 knots. a slight chance of showers. a
slight chance of thunderstorms by mid afternoon. waves calm to
2 feet. 
.sunday night...east winds 5 to 15 knots backing northeast after
midnight. a chance of showers. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots backing north. a chance
of showers. waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots backing north. waves
calm to 2 feet. 

$$

fzus63 kmqt 241401
glfls 
expires:202607242000;;522423

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 24 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... 

30.0 inch remnant ridging over lake superior this morning gives way 
to 29.8 inch troughing tonight as a parent 29.3 inch low tracks 
across hudson bay. pressure holds at around 29.8 inches over the 
lake through early sunday. a 29.6 inch clipper low then moves into 
the upper great lakes or upper midwest by monday before departing 
east towards the st. lawrence seaway at 29.4 inches on tuesday. 
behind the clipper, weak ridging of 29.8 to 29.9 inches returns to 
lake superior tuesday into wednesday.




lsz263-242000-
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 fri jul 24 2026

.rest of today...southwest winds 10 to 20 knots increasing to
15 to 25 knots in the afternoon, then becoming south 10 to
20 knots late. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...southwest winds 15 to 25 knots. a chance of showers
and thunderstorms. waves building to 3 to 6 feet occasionally to
8 feet. 
.saturday...southwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.saturday night...south winds 5 to 15 knots becoming east less
than 10 knots after midnight. waves calm to 2 feet. 
.sunday...east winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. a slight chance of showers. a slight
chance of thunderstorms by mid afternoon. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots backing northeast after
midnight. a chance of showers. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots backing north. a chance
of showers. waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots becoming north less than
10 knots. waves calm to 2 feet. 

$$