fzus63 kdtx 270902
glflh 
expires:202511271715;;585125

open lake forecast for lake huron
national weather service detroit/pontiac mi
402 am est thu nov 27 2025

for waters beyond five nautical miles off shore on lake huron

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...low pressure, 29.30 inches, begins to depart for
northeastern ontario today setting up northwesterly flow in its 
wake. despite departure, influence of the system maintains strong 
winds and lake effect snow showers into early friday. high 
pressure, 30.40 inches, then gradually expands across the region 
friday into saturday. another low, 29.60 inches, is forecast to 
lift across the southern great lakes from the midwest saturday 
night and sunday, bringing widespread snow with a chance for gusty
winds in the wake of the system sunday night.


lhz361-362-271715-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
402 am est thu nov 27 2025

...gale warning in effect through friday morning...

.today...northwest winds to 30 knots with gusts to 35 knot gales.
snow likely. waves 12 to 16 feet. waves occasionally around
20 feet. 
.tonight...northwest winds to 30 knots with gusts to 35 knot
gales. snow likely in the evening...then a chance of snow after
midnight. waves 12 to 16 feet. waves occasionally around 20 feet.
.friday...northwest winds to 30 knots. a chance of snow. waves
10 to 14 feet. waves occasionally around 18 feet. 
.friday night...northwest winds 20 to 25 knots with gusts to
around 30 knots decreasing to 10 to 15 knots. a chance of snow.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.saturday...west winds 5 to 10 knots backing to the southwest
late in the morning...then backing to the south late in the
afternoon increasing to 10 to 15 knots late in the evening. a
chance of snow late in the morning. snow late in the afternoon.
snow may be heavy at times late in the evening. waves 3 to 5 feet
subsiding to 1 to 3 feet late in the morning...then building to
3 to 5 feet late in the afternoon building to 6 to 9 feet late in
the evening. waves occasionally around 12 feet. 
.sunday...southeast winds 10 to 15 knots becoming south 15 to
20 knots in the late morning and early afternoon...then becoming
northwest 20 to 25 knots until early morning. snow early in the
morning. snow likely early in the evening...then a chance of snow
in the late evening and early morning. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.monday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then backing
to the southwest until early morning. a chance of snow until
early morning. waves 4 to 6 feet subsiding to 2 to 4 feet until
early morning. waves occasionally around 8 feet. 


$$

fzus63 kdtx 270902
glflh 
expires:202511271715;;585126

open lake forecast for lake huron
national weather service detroit/pontiac mi
402 am est thu nov 27 2025

for waters beyond five nautical miles off shore on lake huron

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...low pressure, 29.30 inches, begins to depart for
northeastern ontario today setting up northwesterly flow in its 
wake. despite departure, influence of the system maintains strong 
winds and lake effect snow showers into early friday. high 
pressure, 30.40 inches, then gradually expands across the region 
friday into saturday. another low, 29.60 inches, is forecast to 
lift across the southern great lakes from the midwest saturday 
night and sunday, bringing widespread snow with a chance for gusty
winds in the wake of the system sunday night.


lhz363-462-271715-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
402 am est thu nov 27 2025

...gale warning in effect through friday morning...

.today...west at 35 knot gales decreasing to 30 knots in the
afternoon. gusts to 40 knot gales. snow likely. waves 12 to
16 feet. waves occasionally around 20 feet. 
.tonight...northwest winds to 30 knots with gusts to 35 knot
gales. snow in the evening...then snow likely after midnight.
waves 12 to 16 feet. waves occasionally around 20 feet. 
.friday...northwest at 35 knot gales decreasing to 30 knots in
the late morning and afternoon. a chance of snow. waves 10 to
14 feet. waves occasionally around 18 feet. a gale warning may be
needed. 
.friday night...northwest winds to 30 knots becoming west 15 to
20 knots in the late evening and overnight. a chance of snow in
the evening. waves 8 to 12 feet. waves occasionally around
15 feet. 
.saturday...west winds 10 to 15 knots becoming southwest 5 to
10 knots late in the morning...then becoming south 10 to 15 knots
late in the afternoon increasing to 15 to 20 knots late in the
evening. a chance of snow late in the morning. snow late in the
afternoon. waves 3 to 5 feet subsiding to 1 to 3 feet late in the
morning...then building to 4 to 6 feet late in the afternoon
building to 6 to 9 feet late in the evening. waves occasionally
around 12 feet. 
.sunday...southeast winds 15 to 20 knots becoming south 20 to
25 knots in the late morning and early afternoon...then becoming
northwest to 30 knots early in the evening decreasing to 20 to
25 knots in the late evening and early morning. rain and snow
early in the morning...then rain and snow likely until early
morning. waves 8 to 12 feet. waves occasionally around 15 feet. 
.monday...northwest winds 15 to 20 knots becoming west 10 to
15 knots until early evening...then backing to the southwest in
the late evening and early morning. a chance of snow in the late
evening and early morning. waves 4 to 6 feet subsiding to 2 to
4 feet until early morning. waves occasionally around 8 feet. 


$$

fzus63 kmkx 270907
glflm 
expires:202511271630;;585677

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
307 am cst thu nov 27 2025

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure of 29.3 inches over eastern ontario will continue 
to exit through quebec today. winds have eased to high end gales 
and they will persist through at least late afternoon. the gale
warning may be able to end slightly earlier than its current end
time tonight. light westerly winds will set up across the lake 
friday night and become southerly by saturday morning. 

low pressure of 29.8 inches will track from eastern kansas 
saturday morning to the southern tip of lake michigan saturday 
night, and then reach lake huron by mid sunday while deepening to
29.7 inches. widespread, moderate to heavy snow will overspread 
the south half of lake michigan. southeast wind saturday will
become easterly and then westerly as the low crosses the great
lakes region. gales are not anticipated at this time, although a 
period of gusty northwest winds is expected sunday.


lmz261-362-364-563-271630-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
307 am cst thu nov 27 2025

sturgeon bay wi to point betsie mi north...

...gale warning in effect through late tonight...

.today...northwest gales to 40 kt. snow showers this morning,
then snow showers likely this afternoon. waves 10 to 14 ft
occasionally to 18 ft subsiding to 8 to 11 ft occasionally to
14 ft. 
.tonight...northwest gales to 40 kt. snow showers likely in the 
evening, then chance of snow showers overnight. waves 8 to 12 ft 
occasionally to 16 ft subsiding to 7 to 10 ft occasionally to 13 
ft. 
.friday...northwest winds up to 30 kt. snow showers likely in the
morning, then chance of snow showers in the afternoon. waves 6 to
9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.friday night...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. chance of snow in the evening. waves 3 to 5 ft subsiding
to 1 to 3 ft. 
.saturday...west winds 10 to 15 kt backing to southeast. snow
likely in the afternoon. waves 1 to 2 ft. 
.saturday night...southeast winds 10 to 20 kt becoming east.
snow. waves 3 to 5 ft. 
.sunday...north winds to 30 kt becoming northwest. snow. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft. 
.monday...northwest winds 10 to 20 kt becoming west. chance of
snow. waves 2 to 4 ft.  

$$

fzus63 kmkx 270907
glflm 
expires:202511271630;;585678

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
307 am cst thu nov 27 2025

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure of 29.3 inches over eastern ontario will continue 
to exit through quebec today. winds have eased to high end gales 
and they will persist through at least late afternoon. the gale
warning may be able to end slightly earlier than its current end
time tonight. light westerly winds will set up across the lake 
friday night and become southerly by saturday morning. 

low pressure of 29.8 inches will track from eastern kansas 
saturday morning to the southern tip of lake michigan saturday 
night, and then reach lake huron by mid sunday while deepening to
29.7 inches. widespread, moderate to heavy snow will overspread 
the south half of lake michigan. southeast wind saturday will
become easterly and then westerly as the low crosses the great
lakes region. gales are not anticipated at this time, although a 
period of gusty northwest winds is expected sunday.


lmz080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-271630-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
307 am cst thu nov 27 2025

sturgeon bay wi to point betsie mi south...

...gale warning in effect through this evening...

.today...northwest gales to 40 kt diminishing to gales to 35 kt.
chance of snow showers. waves 14 to 18 ft occasionally to 23 ft
subsiding to 12 to 16 ft occasionally to 21 ft. 
.tonight...northwest gales to 40 kt diminishing to gales to
35 kt. chance of snow showers. waves 14 to 18 ft occasionally to
23 ft. 
.friday...northwest winds to 30 kt diminishing to 10 to 20 kt.
chance of rain showers in the morning. waves 10 to 14 ft
occasionally to 18 ft subsiding to 7 to 10 ft occasionally to
13 ft. 
.friday night...northwest winds 10 to 20 kt becoming west 5 to
10 kt overnight. chance of snow. waves 4 to 6 ft occasionally to
8 ft subsiding to 2 to 4 ft. 
.saturday...south winds 10 to 20 kt becoming southeast 15 to
25 kt. snow likely in the morning, then snow in the afternoon.
waves 2 to 4 ft building to 6 to 9 ft occasionally to 12 ft. 
.saturday night...southeast winds to 30 kt diminishing to 15 to
25 kt. snow. waves 7 to 10 ft occasionally to 13 ft.
.sunday...north winds to 30 kt becoming northwest. snow. waves 12
to 16 ft occasionally to 21 ft. 
.monday...northwest winds 10 to 20 kt becoming west. waves 4 to
7 ft occasionally to 9 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmqt 271014 cca
glfls 
expires:202511272100;;589566

open lake forecast for lake superior...corrected
national weather service marquette mi
514 am est thu nov 27 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 30.6 inch high over the canadian prairies and northern plains this 
morning weakens slightly to 30.5 inches as it moves into the 
mississippi river valley through friday, causing 30.3 inch ridging 
over lake superior from friday through saturday. a 29.7 inch low 
over the southern plains saturday morning tracks into lower michigan 
by sunday morning, resulting in 30.0 inch troughing over lake 
superior. a 30.4 inch high then rebuilds over the great lakes on 
monday, bringing 30.3 inch ridging back over lake superior.



lsz162-272100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
514 am est thu nov 27 2025 /414 am cst thu nov 27 2025/

...gale warning in effect until 7 am est /6 am cst/ this
morning...

.early this morning...northwest winds 20 to 30 knots with a few gale
force gusts to 35 knots. waves 5 to 8 feet occasionally to 10 feet. 
.today...northwest winds 20 to 30 knots. isolated snow showers.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight. waves subsiding to 2 to 4 feet. 
.friday...northwest winds 10 to 20 knots. a slight chance of snow
showers in the morning. waves subsiding to calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots. a chance of snow showers.
waves calm to 2 feet. 
.saturday night...north winds 10 to 20 knots. a chance of snow.
waves building to 1 to 3 feet. 
.sunday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.monday...west winds 10 to 20 knots. waves building to 1 to
3 feet. 

$$

fzus63 kmqt 271014 cca
glfls 
expires:202511272100;;589567

open lake forecast for lake superior...corrected
national weather service marquette mi
514 am est thu nov 27 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 30.6 inch high over the canadian prairies and northern plains this 
morning weakens slightly to 30.5 inches as it moves into the 
mississippi river valley through friday, causing 30.3 inch ridging 
over lake superior from friday through saturday. a 29.7 inch low 
over the southern plains saturday morning tracks into lower michigan 
by sunday morning, resulting in 30.0 inch troughing over lake 
superior. a 30.4 inch high then rebuilds over the great lakes on 
monday, bringing 30.3 inch ridging back over lake superior.



lsz263-272100-
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-
514 am est thu nov 27 2025

...gale warning in effect until 1 pm est this afternoon...

.early this morning...northwest gales to 40 knots. isolated snow
showers. waves 9 to 12 feet occasionally to 15 feet subsiding to
8 to 11 feet occasionally to 14 feet. 
.today...northwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. isolated snow showers. waves subsiding
to 5 to 8 feet occasionally to 10 feet. 
.tonight...northwest winds 20 to 30 knots. isolated snow showers.
waves building to 6 to 9 feet occasionally to 11 feet, then
subsiding to 4 to 7 feet occasionally to 9 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a slight chance of snow showers in the morning. waves
subsiding to 1 to 3 feet. 
.friday night...northwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.saturday...north winds 5 to 15 knots. a chance of snow showers.
waves calm to 2 feet. 
.saturday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of snow. waves building to 2 to
4 feet. 
.sunday...northwest winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 271014 cca
glfls 
expires:202511272100;;589568

open lake forecast for lake superior...corrected
national weather service marquette mi
514 am est thu nov 27 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 30.6 inch high over the canadian prairies and northern plains this 
morning weakens slightly to 30.5 inches as it moves into the 
mississippi river valley through friday, causing 30.3 inch ridging 
over lake superior from friday through saturday. a 29.7 inch low 
over the southern plains saturday morning tracks into lower michigan 
by sunday morning, resulting in 30.0 inch troughing over lake 
superior. a 30.4 inch high then rebuilds over the great lakes on 
monday, bringing 30.3 inch ridging back over lake superior.



lsz264-272100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
514 am est thu nov 27 2025

...gale warning in effect through late tonight...

.early this morning...north gales to 45 knots. scattered snow
showers. waves 12 to 17 feet occasionally to 21 feet. 
.today...north gales to 40 knots becoming northwest gales to
35 knots by mid afternoon. scattered snow showers. waves
subsiding to 9 to 12 feet occasionally to 15 feet. 
.tonight...northwest gales to 35 knots diminishing to 20 to
30 knots late. isolated snow showers in the evening. waves
subsiding to 6 to 9 feet occasionally to 11 feet. 
.friday...northwest winds 15 to 25 knots. a slight chance of snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.friday night...northwest winds 5 to 15 knots. a slight chance of
snow showers in the evening. waves subsiding to calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots veering north in the
afternoon. waves calm to 2 feet. 
.saturday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of snow. waves building to 2 to
4 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. 
.monday...west winds 15 to 25 knots. waves subsiding to 3 to
6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 271014 cca
glfls 
expires:202511272100;;589569

open lake forecast for lake superior...corrected
national weather service marquette mi
514 am est thu nov 27 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 30.6 inch high over the canadian prairies and northern plains this 
morning weakens slightly to 30.5 inches as it moves into the 
mississippi river valley through friday, causing 30.3 inch ridging 
over lake superior from friday through saturday. a 29.7 inch low 
over the southern plains saturday morning tracks into lower michigan 
by sunday morning, resulting in 30.0 inch troughing over lake 
superior. a 30.4 inch high then rebuilds over the great lakes on 
monday, bringing 30.3 inch ridging back over lake superior.



lsz265-272100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
514 am est thu nov 27 2025

...storm warning in effect until 6 am est early this morning...
...gale warning in effect through late tonight...

.early this morning...northwest storm force winds to 50 knots.
snow showers. waves 12 to 17 feet occasionally to 21 feet. 
.today...northwest gales to 45 knots. snow showers in the
morning, then scattered snow showers in the afternoon. waves
subsiding to 9 to 12 feet occasionally to 15 feet. 
.tonight...northwest gales to 40 knots. scattered snow showers.
waves subsiding to 7 to 10 feet occasionally to 13 feet. 
.friday...northwest winds to 30 knots with a few gale force gusts to
35 knots possible diminishing to 15 to 25 knots. snow showers 
likely. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...northwest winds 10 to 20 knots backing west after
midnight. a chance of snow showers. waves subsiding to calm to
2 feet. 
.saturday...west winds 10 to 20 knots becoming north 5 to
15 knots in the afternoon. a chance of snow showers. waves calm
to 2 feet. 
.saturday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. snow. waves building to 1 to 3 feet. 
.sunday...northwest winds 20 to 30 knots. snow showers likely.
waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots backing southwest. a chance
of snow showers. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 271014 cca
glfls 
expires:202511272100;;589570

open lake forecast for lake superior...corrected
national weather service marquette mi
514 am est thu nov 27 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 30.6 inch high over the canadian prairies and northern plains this 
morning weakens slightly to 30.5 inches as it moves into the 
mississippi river valley through friday, causing 30.3 inch ridging 
over lake superior from friday through saturday. a 29.7 inch low 
over the southern plains saturday morning tracks into lower michigan 
by sunday morning, resulting in 30.0 inch troughing over lake 
superior. a 30.4 inch high then rebuilds over the great lakes on 
monday, bringing 30.3 inch ridging back over lake superior.



lsz266-272100-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
514 am est thu nov 27 2025

...storm warning in effect until 6 am est early this morning...
...gale warning in effect through friday morning...

.early this morning...north storm force winds to 50 knots. snow
showers. waves 15 to 20 feet occasionally to 25 feet. 
.today...north gales to 45 knots backing northwest by mid afternoon.
snow showers. waves subsiding to 12 to 17 feet occasionally to 21 
feet. 
.tonight...northwest gales to 45 knots. scattered snow showers.
waves subsiding to 10 to 14 feet occasionally to 18 feet. 
.friday...northwest winds to 30 knots with a few gale force gusts up 
to 35 knots possible diminishing to 20 to 30 knots by mid afternoon.
snow showers. waves subsiding to 6 to 9 feet occasionally to 11 
feet.
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. snow showers in the evening, then
a chance of snow showers after midnight. waves subsiding to 2 to
4 feet. 
.saturday...northwest winds 5 to 15 knots veering north in the
afternoon. snow showers. waves subsiding to calm to 2 feet. 
.saturday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. snow. waves building to 1 to 3 feet. 
.sunday...northwest gales to 35 knots. snow showers likely. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.monday...west winds 15 to 25 knots backing southwest. a chance
of snow showers. waves subsiding to 3 to 6 feet occasionally to
8 feet. 

$$

fzus63 kmqt 271014 cca
glfls 
expires:202511272100;;589571

open lake forecast for lake superior...corrected
national weather service marquette mi
514 am est thu nov 27 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 30.6 inch high over the canadian prairies and northern plains this 
morning weakens slightly to 30.5 inches as it moves into the 
mississippi river valley through friday, causing 30.3 inch ridging 
over lake superior from friday through saturday. a 29.7 inch low 
over the southern plains saturday morning tracks into lower michigan 
by sunday morning, resulting in 30.0 inch troughing over lake 
superior. a 30.4 inch high then rebuilds over the great lakes on 
monday, bringing 30.3 inch ridging back over lake superior.



lsz267-272100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
514 am est thu nov 27 2025

...gale warning in effect through friday morning...

.early this morning...north gales to 45 knots with a few storm
force gusts to 50 knots possible. snow showers. waves 15 to
20 feet occasionally to 25 feet. 
.today...north gales to 45 knots. snow showers. waves subsiding
to 11 to 15 feet occasionally to 19 feet, then building to 12 to
17 feet occasionally to 21 feet. 
.tonight...north gales to 40 knots. scattered snow showers. waves
subsiding to 9 to 12 feet occasionally to 15 feet. 
.friday...north winds to 30 knots with a few gales up to 35 knots
possible backing northwest. a slight chance of sleet in the morning.
snow showers. waves subsiding to 6 to 9 feet occasionally to 11 
feet.
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. snow showers. waves subsiding to
2 to 4 feet. 
.saturday...west winds 10 to 20 knots. snow showers. waves
subsiding to calm to 2 feet. 
.saturday night...south winds 10 to 20 knots backing east after
midnight. snow. waves calm to 2 feet. 
.sunday...north winds 20 to 30 knots backing northwest. snow
showers. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 5 to 8 feet occasionally to 10 feet. 
.monday...west winds 15 to 25 knots backing southwest. snow
showers likely. waves subsiding to 3 to 5 feet occasionally to
7 feet. 

$$