fzus63 kmqt 250201
glfls 
expires:202606250800;;856461

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed jun 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... 

a 29.9 inch low currently tracking through ne wi this evening moves 
through lower michigan towards the st. lawrence seaway tonight into 
tomorrow. as the clipper leaves the upper midwest, expect weak 30.0 
inch ridging to return to lake superior tomorrow, building to 30.1 
inches by friday morning and remaining that way into saturday to at 
least early sunday. meanwhile late this weekend, a 29.2 inch low 
lifts from the rockies towards the northern plains and canadian 
prairies. 




lsz162-250800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt wed jun 24 2026 /900 pm cdt wed jun 24 2026/

.rest of tonight...northeast winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots becoming north less
than 10 knots late. patchy fog through early afternoon. waves
calm to 2 feet. 
.thursday night...north winds less than 10 knots. waves calm to
2 feet. 
.friday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.saturday night...east winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. a chance of showers. waves 1 to 3 feet. 
.sunday...east winds 20 to 30 knots. a chance of showers. a
chance of thunderstorms. showers likely. waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.monday...east winds 10 to 20 knots becoming northeast 15 to
25 knots. a chance of showers. a chance of thunderstorms. showers
likely. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 

$$

fzus63 kmqt 250201
glfls 
expires:202606250800;;856462

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed jun 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... 

a 29.9 inch low currently tracking through ne wi this evening moves 
through lower michigan towards the st. lawrence seaway tonight into 
tomorrow. as the clipper leaves the upper midwest, expect weak 30.0 
inch ridging to return to lake superior tomorrow, building to 30.1 
inches by friday morning and remaining that way into saturday to at 
least early sunday. meanwhile late this weekend, a 29.2 inch low 
lifts from the rockies towards the northern plains and canadian 
prairies. 




lsz263-250800-
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-
1000 pm edt wed jun 24 2026

.rest of tonight...northeast winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.thursday...northeast winds less than 10 knots backing north
late. waves calm to 2 feet. 
.thursday night...west winds less than 10 knots backing southwest
after midnight. waves calm to 2 feet. 
.friday...east winds less than 10 knots becoming northeast 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots becoming northeast 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.saturday night...east winds 10 to 20 knots. a chance of showers
after midnight. waves 1 to 3 feet. 
.sunday...east winds 15 to 25 knots becoming southeast 20 to
30 knots. a chance of showers. showers likely. waves building to
3 to 6 feet occasionally to 8 feet. 
.monday...east winds 10 to 20 knots veering south. a chance of
showers. showers likely. waves subsiding to 1 to 3 feet. 

$$