fzus63 kmqt 292001
glfls 
expires:202607300800;;294954

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

weak ridging near 30.0 inches remains over lake superior through 
thursday morning. weak troughing of 28.8 to 29.9 inches moves over 
the lake thursday afternoon through early friday. ridging of 30.0 to 
30.1 inches returns this weekend into early next week.




lsz162-300800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt wed jul 29 2026 /301 pm cdt wed jul 29 2026/

.late this afternoon...south winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...east winds 5 to 15 knots veering south late. a slight
chance of showers and thunderstorms after midnight. waves calm to
2 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 10 to
20 knots late. a slight chance of showers. a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots veering west
after midnight. a chance of showers and a slight chance of
thunderstorms. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. a chance of showers and a slight chance of
thunderstorms. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots diminishing to
less than 10 knots after midnight. waves calm to 2 feet. 
.sunday...northeast winds 10 to 20 knots becoming east 5 to
15 knots. waves calm to 2 feet. 
.monday...east winds 10 to 20 knots veering southwest. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 292001
glfls 
expires:202607300800;;294955

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

weak ridging near 30.0 inches remains over lake superior through 
thursday morning. weak troughing of 28.8 to 29.9 inches moves over 
the lake thursday afternoon through early friday. ridging of 30.0 to 
30.1 inches returns this weekend into early next week.




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-
401 pm edt wed jul 29 2026

.late this afternoon...south winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...southeast winds 5 to 15 knots veering south after
midnight. a slight chance of showers and thunderstorms after
midnight. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots becoming south 10 to
20 knots late. a slight chance of showers. a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots veering west
late. a chance of showers and a slight chance of thunderstorms.
waves calm to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. a chance of showers and a slight chance of
thunderstorms. waves calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots becoming north less
than 10 knots after midnight. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots becoming east
less than 10 knots after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 
.monday...south winds 5 to 15 knots becoming southwest 15 to
25 knots. waves building to 2 to 4 feet. 

$$