fzus63 kmqt 102001
glfls 
expires:202607110800;;751454

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jul 10 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 of 30.0 inches extending from hudson bay remains over 
lake superior tonight. it then builds to 30.1 to 30.2 inches over 
the lake this weekend as the high shifts south to the lower great 
lakes through sunday. a strong low of around 29.3 inches looks to 
cross into hudson bay early next week. by wednesday, 30.1 inch high 
pressure extends from the canadian prairies to the southern 
appalachians as 29.1 inch low pressure moves into northern quebec.




lsz162-110800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt fri jul 10 2026 /300 pm cdt fri jul 10 2026/

.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...east winds 5 to 15 knots backing north after midnight.
waves calm to 2 feet. 
.saturday...southwest winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then backing south late. waves calm to
2 feet. 
.saturday night...south winds less than 10 knots becoming
southwest 5 to 15 knots after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.sunday night...southwest winds 15 to 25 knots. waves 1 to
3 feet. 
.monday...southwest winds 15 to 25 knots. waves building to 2 to
4 feet. 
.monday night...southwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots veering north. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. waves calm to 2 feet.

$$

fzus63 kmqt 102001
glfls 
expires:202607110800;;751455

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jul 10 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 of 30.0 inches extending from hudson bay remains over 
lake superior tonight. it then builds to 30.1 to 30.2 inches over 
the lake this weekend as the high shifts south to the lower great 
lakes through sunday. a strong low of around 29.3 inches looks to 
cross into hudson bay early next week. by wednesday, 30.1 inch high 
pressure extends from the canadian prairies to the southern 
appalachians as 29.1 inch low pressure moves into northern quebec.




lsz263-110800-
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-
400 pm edt fri jul 10 2026

.late this afternoon...east winds less than 10 knots. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots becoming southeast less than
10 knots after midnight, then veering south late. waves calm to
2 feet. 
.saturday...southwest winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then backing south late. waves calm to
2 feet. 
.saturday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 2 to 4 feet. 
.sunday night...southwest winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.monday...southwest winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday night...southwest winds 20 to 30 knots. waves building to
4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...west winds 20 to 30 knots becoming north 15 to
25 knots. waves subsiding to calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. waves calm to 2 feet.

$$