fzus63 kmqt 172008 cca
glfls 
expires:202606180800;;916665

open lake forecast for lake superior...corrected
national weather service marquette mi
408 pm edt wed jun 17 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... 

a 29.2 inch low pressure skirts south of the up into southern quebec
this evening into thursday morning. this low slowly fills on friday 
while a 30.0 inch high builds over the upper mississippi valley, 
persisting into saturday. moving into early next week, a high
pressure over northern canada drops 30.0 inch south over lake
superior on sunday, increasing to 30.2 inches by monday as the parent
high strengthens to 30.3 inches as it moves into western hudson bay.


lsz162-180800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
408 pm edt wed jun 17 2026 /308 pm cdt wed jun 17 2026/

.late this afternoon...northeast winds 15 to 25 knots. a chance
of showers. waves 1 to 3 feet. 
.tonight...northeast winds 10 to 20 knots becoming north 5 to
15 knots after midnight, then backing west late. a slight chance
of showers through midnight. waves subsiding to calm to 2 feet. 
.thursday...west winds 10 to 20 knots. a slight chance of showers
by mid afternoon. waves calm to 2 feet. 
.thursday night...west winds 10 to 20 knots diminishing to 5 to
15 knots late. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. a slight chance of showers by mid afternoon. waves
calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.saturday night...north winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...northeast winds 5 to 15 knots backing north. waves calm
to 2 feet. 
.monday...north winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 172008 cca
glfls 
expires:202606180800;;916666

open lake forecast for lake superior...corrected
national weather service marquette mi
408 pm edt wed jun 17 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... 

a 29.2 inch low pressure skirts south of the up into southern quebec
this evening into thursday morning. this low slowly fills on friday 
while a 30.0 inch high builds over the upper mississippi valley, 
persisting into saturday. moving into early next week, a high
pressure over northern canada drops 30.0 inch south over lake
superior on sunday, increasing to 30.2 inches by monday as the parent
high strengthens to 30.3 inches as it moves into western hudson bay.


lsz263-180800-
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-
408 pm edt wed jun 17 2026

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

$$