fzus63 kmqt 290300
glfls 
expires:202511290900;;683723

open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri nov 28 2025

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...

30.4 inch ridging remains over lake superior through early saturday 
while a 29.7 inch low develops over the colorado front range. this 
low will maintain intensity as it tracks from the south plains into 
southern lower michigan by sunday morning and then into southern 
quebec by sunday evening, sending a 30.0 inch trough over the 
eastern half of lake superior on sunday. in its wake, 30.6 inch high 
pressure moves over the upper midwest, sliding south of the great 
lakes at 30.5 inches on monday. the high will weaken tuesday into 
wednesday as 29.7 inch low pressure moves across ontario and a 29.5 
inch nor'easter develops over the mid atlantic.



lsz162-290900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est fri nov 28 2025 /900 pm cst fri nov 28 2025/

.rest of tonight...north winds 10 to 20 knots diminishing to 5 to
15 knots by midnight. a slight chance of snow showers after
midnight. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a chance of snow showers. waves
building to 1 to 3 feet. 
.saturday night...northeast winds 15 to 25 knots backing north by
midnight. snow showers likely in the evening, then a chance of
snow showers after midnight. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.sunday...northwest winds 15 to 25 knots. a slight chance of snow
showers. waves 2 to 4 feet. 
.sunday night...northwest winds 10 to 20 knots backing west after
midnight. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.monday...west 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. 
.monday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.tuesday...southwest winds 10 to 20 knots. a chance of snow
showers. waves building to 1 to 3 feet. 
.wednesday...northwest winds 15 to 25 knots. waves building to
2 to 4 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 290300
glfls 
expires:202511290900;;683724

open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri nov 28 2025

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...

30.4 inch ridging remains over lake superior through early saturday 
while a 29.7 inch low develops over the colorado front range. this 
low will maintain intensity as it tracks from the south plains into 
southern lower michigan by sunday morning and then into southern 
quebec by sunday evening, sending a 30.0 inch trough over the 
eastern half of lake superior on sunday. in its wake, 30.6 inch high 
pressure moves over the upper midwest, sliding south of the great 
lakes at 30.5 inches on monday. the high will weaken tuesday into 
wednesday as 29.7 inch low pressure moves across ontario and a 29.5 
inch nor'easter develops over the mid atlantic.



lsz263-290900-
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 est fri nov 28 2025

.rest of tonight...north winds 5 to 15 knots. a chance of snow
showers. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots veering northeast by late
morning, then increasing to 10 to 20 knots by mid afternoon. a
chance of snow showers. waves building to 1 to 3 feet. 
.saturday night...northeast winds 15 to 25 knots backing north by
midnight. snow showers likely in the evening, then a chance of
snow showers after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...northwest winds 20 to 30 knots. a chance of snow
showers. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday night...northwest winds 20 to 30 knots becoming west
15 to 25 knots after midnight. a slight chance of snow showers in
the evening. waves subsiding to 2 to 4 feet. 
.monday...west gales to 35 knots. waves building to 6 to 10 feet
occasionally to 13 feet. 
.monday night...west winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. a chance of snow showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of snow showers. waves subsiding to 2 to
4 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...northwest winds 20 to 30 knots. a chance of snow
showers. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 

$$