fzus63 kmqt 211401
glfls 
expires:202606212000;;128000

open lake forecast for lake superior
national weather service marquette mi
1001 am 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging. high pressure over lake superior builds to 30.2 inches by 
early tuesday morning 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.




lsz162-212000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt sun jun 21 2026 /901 am cdt sun jun 21 2026/

.rest of today...southeast winds 5 to 15 knots backing east late.
waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots backing northeast after
midnight. waves calm to 2 feet. 
.monday...north winds less than 10 knots becoming southwest 5 to
15 knots 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 and a slight chance of
thunderstorms 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 likely after midnight.
waves calm to 2 feet. 
.wednesday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of rain showers. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.thursday...north winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 211401
glfls 
expires:202606212000;;128001

open lake forecast for lake superior
national weather service marquette mi
1001 am 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging. high pressure over lake superior builds to 30.2 inches by 
early tuesday morning 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.




lsz263-212000-
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 jun 21 2026

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

$$