fzus63 kdtx 080859
glflh 
expires:202512081700;;209490

open lake forecast for lake huron
national weather service detroit/pontiac mi
359 am est mon dec 8 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...high pressure, 30.40 inches, over the midwest will
build east and reach the central great lakes this morning. the 
next low pressure system will track through the northern great 
lakes tonight into tuesday. an even stronger low, 29.30 inches, 
is on track to move through lower michigan on on wednesday.


lhz361-362-081700-
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-
359 am est mon dec 8 2025

.today...west winds 5 to 10 knots increasing to 10 to 15 knots
late in the morning...then becoming southwest 5 to 10 knots early
in the afternoon increasing to 10 to 15 knots late in the
afternoon. waves 1 to 3 feet. 
.tonight...south winds 10 to 15 knots increasing to 30 knots. a
chance of snow after midnight. waves 3 to 5 feet building to
10 to 14 feet. waves occasionally around 18 feet. 
.tuesday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots early in the
afternoon. snow in the morning...then a chance of snow in the
afternoon. waves 10 to 14 feet. waves occasionally around
18 feet. 
.tuesday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots in the late evening and overnight. a chance of
snow in the evening...then rain and a chance of snow after
midnight. waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...east winds 15 to 20 knots becoming north 20 to
25 knots late in the morning...then backing to the northwest with
gusts to around 30 knots late in the afternoon decreasing to
15 to 20 knots late in the evening. snow and rain likely in the
morning...then a chance of snow late in the morning. waves 6 to
9 feet. waves occasionally around 12 feet. 
.thursday...west winds 15 to 20 knots. waves 3 to 5 feet. 
.friday...west winds 15 to 20 knots increasing to 20 to 25 knots
in the late evening and early morning. a chance of snow. waves
4 to 6 feet building to 6 to 9 feet in the late evening and early
morning. waves occasionally around 12 feet. 


$$

fzus63 kdtx 080859
glflh 
expires:202512081700;;209491

open lake forecast for lake huron
national weather service detroit/pontiac mi
359 am est mon dec 8 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...high pressure, 30.40 inches, over the midwest will
build east and reach the central great lakes this morning. the 
next low pressure system will track through the northern great 
lakes tonight into tuesday. an even stronger low, 29.30 inches, 
is on track to move through lower michigan on on wednesday.


lhz363-462>464-081700-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
359 am est mon dec 8 2025

.today...north winds 5 to 10 knots veering to the south in the
afternoon. waves 3 to 5 feet subsiding to 1 to 3 feet in the
afternoon. 
.tonight...southwest winds 10 to 15 knots becoming south 20 to
25 knots with gusts to around 30 knots. waves 3 to 5 feet
building to 10 to 14 feet. waves occasionally around 18 feet. 
.tuesday...south winds to 30 knots becoming southwest 20 to
25 knots early in the afternoon. snow. waves 10 to 14 feet. waves
occasionally around 18 feet. 
.tuesday night...southwest winds 15 to 20 knots. a chance of snow
in the evening...then rain and snow after midnight. waves 6 to
9 feet. waves occasionally around 12 feet. 
.wednesday...south winds 20 to 25 knots backing to the north with
gusts to around 30 knots late in the morning...then increasing to
30 knots late in the afternoon becoming northwest 20 to 25 knots
late in the evening. rain with snow likely in the morning...then
a chance of rain late in the morning. a chance of snow late in
the morning. waves 8 to 12 feet. waves occasionally around
15 feet. 
.thursday...west winds 15 to 20 knots. a chance of snow in the
late evening and early morning. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.friday...west winds 15 to 20 knots increasing to 30 knots. a
chance of snow until afternoon...then snow likely until early
morning. waves 5 to 7 feet building to 8 to 12 feet in the late
evening and early morning. waves occasionally around 15 feet. 


$$

fzus63 kmkx 080905
glflm 
expires:202512081630;;210054

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 am cst mon dec 8 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...

lighter winds this morning will pick up out of the south to
southwest this afternoon and continue to increase this evening, as
high pressure of 30.4 inches overhead this morning heads 
eastward. gale force gusts are expected later this evening through
tonight across the north half of the lake. 

low pressure of 29.2 inches will approach from the northern 
plains tuesday, bringing increased southerly winds across the 
south half of the lake by tuesday night as the low moves through. 
winds will all shift to northwesterly as the low exits into 
wednesday, with gales possible in the southern half throughout 
this time frame. winds gradually diminish wednesday night,
remaining west to northwest through the end of the week.


lmz261-362-364-366-563-565-567-868-081630-
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 point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
305 am cst mon dec 8 2025

sheboygan wi to pentwater mi north...

...gale warning in effect from this evening through late
tonight...

.today...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
slight chance of snow this morning, then chance of snow this
afternoon. waves 1 to 3 ft building to 3 to 5 ft. 
.tonight...south winds to 30 kt becoming southwest gales to
35 kt. chance of snow in the evening, then snow overnight. waves
5 to 8 ft occasionally to 10 ft building to 10 to 14 ft
occasionally to 18 ft. 
.tuesday...west gales to 35 kt diminishing to 10 to 20 kt. chance
of snow in the morning, then chance of snow and rain in the
afternoon. waves 8 to 12 ft occasionally to 16 ft subsiding to
6 to 9 ft occasionally to 12 ft. 
.tuesday night...southwest winds 15 to 25 kt backing to east to
30 kt. snow and rain. waves 5 to 8 ft occasionally to 10 ft
building to 8 to 11 ft occasionally to 14 ft. 
.wednesday...north gales to 35 kt. snow likely in the morning.
waves 8 to 12 ft occasionally to 16 ft. 
.wednesday night...northwest winds to 30 kt diminishing to 15 to
25 kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.thursday...northwest winds 10 to 20 kt. waves 3 to 5 ft. 
.friday...west winds 15 to 25 kt becoming northwest gales to
35 kt. snow likely. waves 4 to 7 ft occasionally to 9 ft building
to 7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmkx 080905
glflm 
expires:202512081630;;210055

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 am cst mon dec 8 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...

lighter winds this morning will pick up out of the south to
southwest this afternoon and continue to increase this evening, as
high pressure of 30.4 inches overhead this morning heads 
eastward. gale force gusts are expected later this evening through
tonight across the north half of the lake. 

low pressure of 29.2 inches will approach from the northern 
plains tuesday, bringing increased southerly winds across the 
south half of the lake by tuesday night as the low moves through. 
winds will all shift to northwesterly as the low exits into 
wednesday, with gales possible in the southern half throughout 
this time frame. winds gradually diminish wednesday night,
remaining west to northwest through the end of the week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-081630-
lake michigan from michigan city in to st. joseph mi 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 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-
305 am cst mon dec 8 2025

sheboygan wi to pentwater mi south...

.today...southeast winds 10 to 15 kt becoming south 10 to 20 kt.
waves 2 to 4 ft building to 3 to 5 ft. 
.tonight...south winds 15 to 25 kt becoming southwest to 30 kt.
chance of snow overnight. waves 4 to 7 ft occasionally to 9 ft
building to 8 to 12 ft occasionally to 16 ft. 
.tuesday...southwest gales to 35 kt diminishing to 15 to 25 kt.
chance of snow in the morning, then chance of rain and snow in
the afternoon. waves 10 to 14 ft occasionally to 18 ft subsiding
to 6 to 9 ft occasionally to 12 ft. 
.tuesday night...southwest gales to 35 kt increasing to gales to
40 kt. rain and snow. waves 8 to 11 ft occasionally to 14 ft
building to 10 to 14 ft occasionally to 18 ft. 
.wednesday...northwest gales to 40 kt. rain and snow likely in
the morning, then chance of snow in the afternoon. waves 12 to
16 ft occasionally to 21 ft. 
.wednesday night...northwest winds to 30 kt diminishing to 10 to
20 kt. chance of snow. waves 10 to 14 ft occasionally to 18 ft
subsiding to 6 to 9 ft occasionally to 12 ft. 
.thursday...west winds 10 to 20 kt. waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft. 
.friday...west winds to 30 kt increasing to gales to 40 kt.
freezing spray. chance of snow. waves 6 to 9 ft occasionally to
12 ft building to 10 to 14 ft occasionally to 18 ft.  

$$

fzus63 kmqt 080900
glfls 
expires:202512082100;;209583

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 8 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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz162-082100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est mon dec 8 2025 /300 am cst mon dec 8 2025/

.early this morning...southwest winds 10 to 20 knots. waves calm
to 2 feet. 
.today...southwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a slight chance of snow showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.tonight...southwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight, then becoming northwest 10 to 20 knots
late. snow showers in the evening, then a chance of snow showers
after midnight. waves subsiding to 2 to 4 feet. 
.tuesday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by late morning, then backing south by mid afternoon. a
chance of snow showers in the afternoon. waves subsiding to calm
to 2 feet. 
.tuesday night...east winds 15 to 25 knots becoming northeast
20 to 30 knots after midnight. snow showers likely in the
evening, then a chance of snow showers after midnight. freezing
spray after midnight. waves building to 5 to 8 feet occasionally
to 10 feet. 
.wednesday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray in the morning. a
chance of snow showers. waves subsiding to 2 to 4 feet. 
.wednesday night...northwest winds 10 to 20 knots. waves
subsiding to calm to 2 feet. 
.thursday...northwest winds 10 to 20 knots. a chance of snow
showers. waves building to 1 to 3 feet. 
.friday...northwest gales to 35 knots. a chance of snow showers.
waves building to 3 to 6 feet occasionally to 8 feet, then
subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 080900
glfls 
expires:202512082100;;209584

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 8 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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz263-082100-
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 am est mon dec 8 2025

.early this morning...southwest winds 5 to 15 knots. a slight
chance of snow showers. waves calm to 2 feet building to 1 to
3 feet. 
.today...southwest winds 5 to 15 knots increasing to 15 to
25 knots. a slight chance of snow showers. waves building to 3 to
5 feet occasionally to 7 feet. 
.tonight...south winds 15 to 25 knots becoming southwest 10 to
20 knots by midnight, then veering west late. snow showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.tuesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of snow showers. waves subsiding to calm to
2 feet. 
.tuesday night...northeast winds 15 to 25 knots increasing to
gales to 35 knots after midnight. a chance of snow showers.
freezing spray after midnight. waves building to 7 to 10 feet
occasionally to 13 feet. 
.wednesday...north gales to 35 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray in the morning. a
chance of snow showers. waves building to 8 to 11 feet
occasionally to 14 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.thursday...northwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.friday...northwest gales to 40 knots. freezing spray. a chance
of snow showers. waves building to 5 to 9 feet occasionally to
11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 080900
glfls 
expires:202512082100;;209585

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 8 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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz264-082100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am est mon dec 8 2025

.early this morning...west winds 5 to 15 knots. a slight chance
of snow showers. waves calm to 2 feet. 
.today...west winds 10 to 20 knots backing southwest. a slight
chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.tonight...southwest winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. a chance of snow showers in the evening,
then snow showers after midnight. waves 3 to 5 feet occasionally
to 7 feet. 
.tuesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots by late morning, then veering north by mid afternoon. a
chance of snow showers. waves subsiding to calm to 2 feet. 
.tuesday night...northeast winds 15 to 25 knots increasing to
gales to 35 knots after midnight. a chance of snow showers.
freezing spray after midnight. waves building to 7 to 10 feet
occasionally to 13 feet. 
.wednesday...north gales to 35 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday...northwest winds 10 to 20 knots increasing to 15 to
25 knots. waves subsiding to 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.friday...northwest gales to 40 knots. freezing spray. a chance
of snow showers. waves building to 8 to 11 feet occasionally to
14 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 080900
glfls 
expires:202512082100;;209586

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 8 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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz265-082100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am est mon dec 8 2025

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet. 
.today...southwest winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 1 to 3 feet. 
.tonight...southwest winds 20 to 30 knots diminishing to 15 to
25 knots late. a chance of snow showers in the evening, then snow
showers after midnight. waves building to 2 to 4 feet. 
.tuesday...west winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. a chance of snow showers. waves
subsiding to calm to 2 feet. 
.tuesday night...northeast winds 10 to 20 knots increasing to
20 to 30 knots after midnight. snow showers likely. waves
building to 5 to 8 feet occasionally to 10 feet. 
.wednesday...north gales to 35 knots becoming northwest 20 to
30 knots in the afternoon. a chance of snow showers. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.wednesday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.thursday...northwest winds 15 to 25 knots backing west. a chance
of snow showers. waves subsiding to 1 to 3 feet, then building to
2 to 4 feet. 
.friday...northwest gales to 45 knots. freezing spray. snow
showers likely. waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 080900
glfls 
expires:202512082100;;209587

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 8 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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz266-082100-
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-
400 am est mon dec 8 2025

.early this morning...west winds 10 to 20 knots. a slight chance
of snow showers. waves 2 to 4 feet. 
.today...west winds 10 to 20 knots becoming southwest 15 to
25 knots by late morning, then increasing to 20 to 30 knots by
mid afternoon. a slight chance of snow showers in the morning.
waves subsiding to 1 to 3 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.tonight...southwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 15 to 25 knots. a
chance of snow showers in the evening, then snow showers after
midnight. waves building to 6 to 9 feet occasionally to 11 feet,
then subsiding to 4 to 7 feet occasionally to 9 feet. 
.tuesday...west winds 15 to 25 knots veering northwest by late
morning, then diminishing to 10 to 20 knots by mid afternoon.
snow showers in the morning, then a chance of snow showers in the
afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northeast winds 10 to 20 knots increasing to
gales to 35 knots after midnight. snow showers in the evening,
then a chance of snow showers after midnight. waves building to
5 to 8 feet occasionally to 10 feet. 
.wednesday...north gales to 35 knots. freezing spray in the
morning. a chance of snow showers. waves building to 7 to 10 feet
occasionally to 13 feet. 
.wednesday night...northwest winds 20 to 30 knots. snow showers
likely in the evening. a chance of snow showers after midnight.
waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.thursday...northwest winds 15 to 25 knots. a chance of snow
showers, then snow showers likely. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday...northwest gales to 40 knots veering north. freezing
spray. snow showers. waves building to 11 to 15 feet occasionally
to 19 feet, then subsiding to 10 to 14 feet occasionally to
18 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 080900
glfls 
expires:202512082100;;209588

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 8 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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz267-082100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am est mon dec 8 2025

.early this morning...west winds 10 to 20 knots. a chance of snow
showers. waves 2 to 4 feet. 
.today...west winds 10 to 20 knots becoming southwest 15 to
25 knots by late morning, then increasing to 20 to 30 knots by
mid afternoon. a slight chance of snow showers in the morning.
waves building to 3 to 6 feet occasionally to 8 feet. 
.tonight...southwest winds 20 to 30 knots backing south by
midnight, then veering southwest late. a chance of snow showers
in the evening, then snow showers after midnight. waves building
to 4 to 8 feet occasionally to 10 feet. 
.tuesday...southwest winds 15 to 25 knots veering west. snow
showers in the morning, then a chance of snow showers in the
afternoon. waves subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 10 to 20 knots becoming
northeast 15 to 25 knots after midnight. snow showers likely.
waves subsiding to calm to 2 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...north winds 20 to 30 knots. a chance of snow
showers. waves building to 5 to 8 feet occasionally to 10 feet. 
.wednesday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...northwest winds 15 to 25 knots. a chance of snow
showers, then snow showers likely. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday...northwest winds 20 to 30 knots veering north. snow
showers. freezing spray. waves building to 8 to 12 feet
occasionally to 15 feet. 

note, wave height forecasts are for ice free areas.

$$