fzus63 kmqt 281501
glfls 
expires:202511282100;;654794

open lake forecast for lake superior
national weather service marquette mi
1000 am 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...

a 29.5 inch low over quebec will continue to push away from the area 
as 30.5 inch ridging expands over the upper mississippi river 
valley. meanwhile a 29.7 inch colorado low will develop today and 
will move over oklahoma at 29.8 inches by early saturday. this low 
will  track northeast into the southern great lakes basin by early 
sunday morning at 29.8 inches, reaching the southern ontario/quebec 
border sunday evening. in its wake, 30.6 inch high pressure moves 
over the upper midwest, sliding south of the great lakes at 30.4 
inches monday. the high is eroded tuesday into wednesday as a low 
pressure of 29.6 inches tracks through southern ontario and a 29.5 
inch nor'easter off the coast of the chesapeake bay develops.



lsz162-282100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est fri nov 28 2025 /900 am cst fri nov 28 2025/

.rest of today...northwest winds 15 to 25 knots diminishing to
10 to 20 knots. waves 1 to 3 feet subsiding to calm to 2 feet. 
.tonight...north winds 5 to 15 knots. a slight chance of snow
showers after midnight. 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 calm to 2 feet. 
.saturday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of snow showers. waves building
to 2 to 4 feet. 
.sunday...northwest winds 15 to 25 knots. a slight chance of snow
showers. waves subsiding to 1 to 3 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...southwest winds 15 to 25 knots veering west. waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
1 to 3 feet. 
.tuesday...southwest winds 10 to 20 knots veering west. a chance
of snow showers. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 281501
glfls 
expires:202511282100;;654795

open lake forecast for lake superior
national weather service marquette mi
1000 am 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...

a 29.5 inch low over quebec will continue to push away from the area 
as 30.5 inch ridging expands over the upper mississippi river 
valley. meanwhile a 29.7 inch colorado low will develop today and 
will move over oklahoma at 29.8 inches by early saturday. this low 
will  track northeast into the southern great lakes basin by early 
sunday morning at 29.8 inches, reaching the southern ontario/quebec 
border sunday evening. in its wake, 30.6 inch high pressure moves 
over the upper midwest, sliding south of the great lakes at 30.4 
inches monday. the high is eroded tuesday into wednesday as a low 
pressure of 29.6 inches tracks through southern ontario and a 29.5 
inch nor'easter off the coast of the chesapeake bay develops.



lsz263-282100-
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 28 2025

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

$$