fzus63 kmqt 131501
glfls 
expires:202611132100;;754148

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri nov 13 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...

30.3 inch high pressure over western ontario slowly shifts southeast 
over the western half of lake superior today and expands towards the 
southern u.s. by saturday. this high continues to shift southeast, 
expand, and build through the weekend, centered over the ohio river 
valley at 30.5 inches by monday afternoon. on wednesday a 29.6 inch 
low pressure will move from the rockies to the dakotas, with lake 
superior between this low and the high pressure centered over the 
mid-atlantic states at 30.4 inches.




lsz162-132100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est fri nov 13 2026 /900 am cst fri nov 13 2026/

.rest of today...north winds 10 to 20 knots diminishing to 5 to
15 knots. a slight chance of snow showers late in the morning.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...north winds 5 to 15 knots backing northwest late.
waves subsiding to calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.saturday night...west winds less than 10 knots increasing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday...southwest winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet. 
.tuesday...southwest winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 131501
glfls 
expires:202611132100;;754149

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri nov 13 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...

30.3 inch high pressure over western ontario slowly shifts southeast 
over the western half of lake superior today and expands towards the 
southern u.s. by saturday. this high continues to shift southeast, 
expand, and build through the weekend, centered over the ohio river 
valley at 30.5 inches by monday afternoon. on wednesday a 29.6 inch 
low pressure will move from the rockies to the dakotas, with lake 
superior between this low and the high pressure centered over the 
mid-atlantic states at 30.4 inches.




lsz263-132100-
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 am est fri nov 13 2026

.rest of today...north winds 10 to 20 knots. a chance of snow
showers, possibly mixed with rain. waves 3 to 5 feet occasionally
to 7 feet subsiding to 2 to 4 feet. 
.tonight...north winds 10 to 20 knots diminishing to 5 to
15 knots by midnight. waves subsiding to calm to 2 feet. 
.saturday...north winds 5 to 15 knots becoming northwest less
than 10 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...northwest winds less than 10 knots backing west
after midnight. waves calm to 2 feet. 
.sunday...west winds 5 to 15 knots becoming southwest 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.sunday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday...southwest gales to 35 knots. waves building to 5 to
8 feet occasionally to 10 feet. 
.tuesday...southwest gales to 35 knots diminishing to 15 to
25 knots. waves subsiding to 3 to 6 feet occasionally to 8 feet. 

$$