fzus63 kmqt 212001
glfls 
expires:202606220800;;142797

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun jun 21 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... 

high pressure builds over lake superior tonight into early tuesday 
morning to 30.2 inches and remains in place through the day. 
pressure decreases beginning wednesday morning, falling to 29.9 
inches by thursday morning. broad 30.0 inch high pressure fills in 
over the upper great lakes for friday.




lsz162-220800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt sun jun 21 2026 /301 pm cdt sun jun 21 2026/

.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...northeast winds 5 to 15 knots backing north late.
waves calm to 2 feet. 
.monday...north winds 5 to 15 knots backing southwest in the
afternoon, then veering north late. waves 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...north winds 5 to 15 knots veering northeast by mid
afternoon. a chance of rain showers by mid afternoon. waves calm
to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots. a chance of rain
showers through midnight. rain showers after midnight. waves calm
to 2 feet. 
.wednesday...northeast winds 10 to 20 knots. a chance of rain
showers. waves building to 1 to 3 feet, then subsiding to calm to
2 feet. 
.wednesday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 
.friday...north winds less than 10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 212001
glfls 
expires:202606220800;;142798

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun jun 21 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... 

high pressure builds over lake superior tonight into early tuesday 
morning to 30.2 inches and remains in place through the day. 
pressure decreases beginning wednesday morning, falling to 29.9 
inches by thursday morning. broad 30.0 inch high pressure fills in 
over the upper great lakes for friday.




lsz263-220800-
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 sun jun 21 2026

.late this afternoon...northeast winds less than 10 knots. waves
calm to 2 feet. 
.tonight...northeast winds less than 10 knots backing north late.
waves calm to 2 feet. 
.monday...north winds less than 10 knots becoming west 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.monday night...west winds 5 to 15 knots diminishing to less than
10 knots after midnight, then backing southwest late. waves calm
to 2 feet. 
.tuesday...southwest winds less than 10 knots becoming northeast
5 to 15 knots by mid afternoon. a slight chance of rain showers
by mid afternoon. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots. a chance of rain
showers through midnight, then rain showers likely after
midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast by mid
afternoon. a chance of rain showers. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots becoming west less than
10 knots. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots becoming east less than
10 knots. waves calm to 2 feet. 

$$