fzus63 kdtx 231345
glflh 
expires:202610232145;;052656

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am edt fri oct 23 2026

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, 30.50 inches, over quebec migrates
south into new england to close out the week, sustaining an
extended period of tranquil and mainly dry conditions into next
week.


lhz363-462>464-232145-
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-
945 am edt fri oct 23 2026

.rest of today...southeast winds 5 to 10 knots. waves 2 feet or
less. 
.tonight...southeast winds 5 to 10 knots increasing to 10 to
15 knots after midnight. waves 2 feet or less. 
.saturday...southeast winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet building to 2 to 4 feet after midnight. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
late in the afternoon...then becoming west 10 to 15 knots late in
the evening. waves 1 to 3 feet. 
.monday...north winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday...northeast winds 10 to 15 knots becoming east 5 to
10 knots . waves 1 to 3 feet. 


$$

fzus63 kdtx 231345
glflh 
expires:202610232145;;052655

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am edt fri oct 23 2026

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, 30.50 inches, over quebec migrates
south into new england to close out the week, sustaining an
extended period of tranquil and mainly dry conditions into next
week.


lhz361-362-232145-
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-
945 am edt fri oct 23 2026

.rest of today...southeast winds 5 to 10 knots. areas of fog late
in the morning. waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots veering to the south
early in the morning. patchy dense fog after midnight. waves
2 feet or less. 
.saturday...south winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. patchy dense fog in the morning.
waves 1 to 3 feet. 
.saturday night...southeast winds 10 to 15 knots veering to the
south after midnight. waves 2 to 4 feet. 
.sunday...south winds 10 to 15 knots becoming southwest 5 to
10 knots late in the morning...then becoming northwest 10 to
15 knots late in the evening. waves 2 to 4 feet subsiding to 1 to
3 feet late in the afternoon. 
.monday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.tuesday...northeast winds 10 to 15 knots becoming east 5 to
10 knots . waves 2 feet or less. 


$$

fzus63 kmkx 231346
glflm 
expires:202610232130;;052666

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
846 am cdt fri oct 23 2026

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...

30.4 inch high pressure is centered over quebec this morning, 
with 29.4 inch low pressure positioned over northeastern montana. 
positioning of these surface features is resulting in generally 
south to southeasterly winds across the waters. areas of fog, some
of which has been dense, will continue through at least mid- 
morning, particularly over the western half of the waters. dense 
fog advisory thus remains in effect until 10 am cdt, with trends 
being monitored for possible extensions over the next hour. 
aforementioned area of low pressure will progress toward lake 
winnipeg tonight, continuing on toward the hudson bay by saturday 
evening as it deepens to near 29.2 inches. progression of the low 
will maintain generally southerly flow across the waters, with 
gusts between 25-30 knots possible over the northern half of the 
lake saturday afternoon and night. can't rule out an isolated gust
approaching gale force during this time frame, with conditions 
not expected to be widespread enough for headlines.

winds will trend southwesterly while steadily weakening ahead of an 
approaching cold front on sunday. currently expecting the front to 
move south across lake michigan late sunday afternoon into sunday 
evening, bringing a breezy northeast wind shift. gales are not 
anticipated during the frontal passage, with any isolated rain 
showers expected to remain over the far northern part of the lake. 
breezy northeast winds will continue through monday as 30.7 inch 
high pressure slides into ontario from the canadian great plains. 
winds will trend easterly and eventually southerly tuesday into 
the middle of next week as the aforementioned high shifts into the
northeastern united states. widespread rain chances return 
wednesday into thursday ahead of 30.0 inch low pressure 
developing in the northern great plains.


lmz261-362-364-366-563-565-567-868-232130-
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-
846 am cdt fri oct 23 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until 10 am cdt this morning...

.rest of today...south winds 10 to 15 kt. patchy dense fog
through mid morning, then patchy fog this afternoon. waves 1 to
2 ft. 
.tonight...south winds 10 to 15 kt increasing to 10 to 20 kt.
patchy fog. waves 1 to 3 ft. 
.saturday...south winds 10 to 20 kt increasing to 15 to 25 kt.
patchy fog in the morning. waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft. 
.saturday night...south winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday...southwest winds 15 to 25 kt becoming west 10 to 20 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.sunday night...north winds 5 to 10 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.monday...north winds 10 to 20 kt. waves 3 to 5 ft. 
.tuesday...east winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft.  

$$

fzus63 kmkx 231346
glflm 
expires:202610232130;;052667

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
846 am cdt fri oct 23 2026

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...

30.4 inch high pressure is centered over quebec this morning, 
with 29.4 inch low pressure positioned over northeastern montana. 
positioning of these surface features is resulting in generally 
south to southeasterly winds across the waters. areas of fog, some
of which has been dense, will continue through at least mid- 
morning, particularly over the western half of the waters. dense 
fog advisory thus remains in effect until 10 am cdt, with trends 
being monitored for possible extensions over the next hour. 
aforementioned area of low pressure will progress toward lake 
winnipeg tonight, continuing on toward the hudson bay by saturday 
evening as it deepens to near 29.2 inches. progression of the low 
will maintain generally southerly flow across the waters, with 
gusts between 25-30 knots possible over the northern half of the 
lake saturday afternoon and night. can't rule out an isolated gust
approaching gale force during this time frame, with conditions 
not expected to be widespread enough for headlines.

winds will trend southwesterly while steadily weakening ahead of an 
approaching cold front on sunday. currently expecting the front to 
move south across lake michigan late sunday afternoon into sunday 
evening, bringing a breezy northeast wind shift. gales are not 
anticipated during the frontal passage, with any isolated rain 
showers expected to remain over the far northern part of the lake. 
breezy northeast winds will continue through monday as 30.7 inch 
high pressure slides into ontario from the canadian great plains. 
winds will trend easterly and eventually southerly tuesday into 
the middle of next week as the aforementioned high shifts into the
northeastern united states. widespread rain chances return 
wednesday into thursday ahead of 30.0 inch low pressure 
developing in the northern great plains.


lmz669-671-673-675-777-870-872-874-876-878-232130-
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 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-
846 am cdt fri oct 23 2026

sheboygan wi to pentwater mi south to wilmette harbor il to st.
joseph mi...

...dense fog advisory in effect until 10 am cdt this morning...

.rest of today...southeast winds 10 to 15 kt. patchy dense fog
through mid morning. waves 1 to 2 ft. 
.tonight...southeast winds 10 to 15 kt becoming south 10 to
20 kt. patchy fog overnight. waves 1 to 3 ft. 
.saturday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.saturday night...south winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.sunday...south winds 10 to 20 kt. waves 2 to 4 ft. 
.sunday night...southwest winds 5 to 10 kt veering to north 10 to
20 kt. waves 1 to 3 ft. 
.monday...northeast winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.tuesday...east winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmkx 230759
glflm 
expires:202610231515;;039478

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
259 am cdt fri oct 23 2026

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...
dense fog will continue this morning over much of lake michigan
with the exception of the far south. areas of fog may persist this
afternoon and tonight as well. otherwise, high pressure around 
30.3 inches will gradually shift eastward through today, while 
strengthening to around 30.5 inches over southern quebec. light 
and variable winds this morning will become light southerly late 
this morning and afternoon, then become breezy southerly winds 
over northern and central lake michigan by saturday afternoon. 
modest southwest winds will then develop on sunday ahead of a slow
moving canadian cold front. the front will shift the winds to 
northerly from late sunday afternoon through the night as it moves
southward. modest northeast winds will then prevail monday and 
monday night. 




lmz669-671-673-870-872-874-231515-
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 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-
259 am cdt fri oct 23 2026

sheboygan wi to pentwater mi south to wind point wi to holland
mi...

...dense fog advisory in effect until 10 am cdt this morning...

.today...southeast winds 10 to 15 kt. areas of dense fog this 
morning. waves 1 to 2 ft. 
.tonight...southeast winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 3 ft. 
.saturday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.saturday night...south winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.sunday...southwest winds 10 to 20 kt becoming south. waves 2 to
4 ft. 
.sunday night...southwest winds 5 to 10 kt veering to north 10 to
20 kt. waves 1 to 3 ft. 
.monday...northeast winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.tuesday...east winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmqt 231401
glfls 
expires:202610232000;;053150

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri oct 23 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...

30.5 inch high pressure extending from southern quebec into new 
england is extending a 30.2 inch ridge over lake superior. by 
saturday afternoon, a 29.2 inch low over northern manitoba drags a 
30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz266-232000-
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-
1000 am edt fri oct 23 2026

.rest of today...south winds 15 to 25 knots diminishing to 10 to
20 knots late. patchy fog by late morning. waves 1 to 3 feet. 
.tonight...south winds 15 to 25 knots increasing to 20 to
30 knots late. waves building to 2 to 4 feet. 
.saturday...south winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible in the
afternoon. waves building to 4 to 7 feet occasionally to 9 feet. 
.saturday night...south winds 20 to 30 knots becoming southwest
15 to 25 knots after midnight. a chance of showers. waves
subsiding to 2 to 4 feet. 
.sunday...west winds 15 to 25 knots. a slight chance of showers
through early afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.sunday night...northwest winds 15 to 25 knots veering north
after midnight. waves subsiding to 1 to 3 feet. 
.monday...north winds 10 to 20 knots becoming northeast 5 to
15 knots. waves subsiding to calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 231401
glfls 
expires:202610232000;;053151

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri oct 23 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...

30.5 inch high pressure extending from southern quebec into new 
england is extending a 30.2 inch ridge over lake superior. by 
saturday afternoon, a 29.2 inch low over northern manitoba drags a 
30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz267-232000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt fri oct 23 2026

.rest of today...south winds 10 to 20 knots backing southeast
late. patchy fog by late morning. waves 1 to 3 feet. 
.tonight...south winds 15 to 25 knots. waves 1 to 3 feet. 
.saturday...south winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...south winds 20 to 30 knots becoming southwest
15 to 25 knots after midnight. a chance of showers. waves
subsiding to 2 to 4 feet. 
.sunday...west winds 10 to 20 knots. a chance of showers through
early afternoon. waves subsiding to 1 to 3 feet, then building to
2 to 4 feet. 
.sunday night...northwest winds 15 to 25 knots veering north
after midnight. waves 2 to 4 feet. 
.monday...north winds 10 to 20 knots veering east. waves
subsiding to calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots. waves building to 1 to
3 feet. 

$$

fzus63 kmqt 231401
glfls 
expires:202610232000;;053146

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri oct 23 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...

30.5 inch high pressure extending from southern quebec into new 
england is extending a 30.2 inch ridge over lake superior. by 
saturday afternoon, a 29.2 inch low over northern manitoba drags a 
30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz162-232000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt fri oct 23 2026 /900 am cdt fri oct 23 2026/

...dense fog advisory in effect until 11 am edt /10 am cdt/ this
morning...

.rest of today...east winds 5 to 15 knots. areas of dense fog by
late morning, then patchy fog by mid afternoon. waves calm to
2 feet. 
.tonight...east winds 5 to 15 knots veering south after midnight,
then increasing to 10 to 20 knots late. patchy fog through
midnight. a slight chance of showers. waves building to 1 to
3 feet. 
.saturday...south winds 15 to 25 knots veering southwest late. a
chance of showers by mid afternoon. waves building to 2 to
4 feet. 
.saturday night...west winds 10 to 20 knots. a chance of showers
through midnight. waves subsiding to calm to 2 feet. 
.sunday...west winds 10 to 20 knots. waves building to 1 to
3 feet. 
.sunday night...northwest winds 10 to 20 knots veering north
after midnight. waves subsiding to calm to 2 feet. 
.monday...northeast winds 5 to 15 knots becoming east 10 to
20 knots. waves building to 1 to 3 feet. 
.tuesday...east winds 10 to 20 knots veering southeast. a chance
of rain showers. waves subsiding to calm to 2 feet, then building
to 1 to 3 feet. 

$$

fzus63 kmqt 231401
glfls 
expires:202610232000;;053147

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri oct 23 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...

30.5 inch high pressure extending from southern quebec into new 
england is extending a 30.2 inch ridge over lake superior. by 
saturday afternoon, a 29.2 inch low over northern manitoba drags a 
30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz263-232000-
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 edt fri oct 23 2026

...dense fog advisory in effect until 11 am edt this morning...

.rest of today...south winds 5 to 15 knots backing east late.
patchy fog by late morning. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots increasing to 10 to 20 knots
after midnight. a slight chance of showers after midnight. waves
building to 2 to 4 feet. 
.saturday...south winds 15 to 25 knots veering southwest late. a
slight chance of showers by mid afternoon. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.saturday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a chance of showers through
midnight. waves subsiding to 1 to 3 feet. 
.sunday...west winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.sunday night...northwest winds 10 to 20 knots becoming north
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...north winds 5 to 15 knots veering east. waves calm to
2 feet. 
.tuesday...east winds 5 to 15 knots veering southeast. a chance
of rain showers. waves calm to 2 feet. 

$$

fzus63 kmqt 231401
glfls 
expires:202610232000;;053148

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri oct 23 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...

30.5 inch high pressure extending from southern quebec into new 
england is extending a 30.2 inch ridge over lake superior. by 
saturday afternoon, a 29.2 inch low over northern manitoba drags a 
30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz264-232000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt fri oct 23 2026

...dense fog advisory in effect until 11 am edt this morning...

.rest of today...south winds 5 to 15 knots backing southeast
late. waves calm to 2 feet building to 1 to 3 feet. 
.tonight...southeast winds 5 to 15 knots veering south after
midnight, then increasing to 10 to 20 knots late. a slight chance
of showers after midnight. waves building to 2 to 4 feet. 
.saturday...south winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon, then diminishing to 15 to 25 knots
late. a slight chance of showers. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...southwest winds 10 to 20 knots veering west
after midnight. a chance of showers. waves subsiding to 2 to
4 feet. 
.sunday...west winds 15 to 25 knots. waves subsiding to 1 to
3 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.sunday night...northwest winds 10 to 20 knots becoming north
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...north winds 5 to 15 knots veering northeast. waves
subsiding to calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots becoming south 10 to
20 knots. a chance of rain showers. waves building to 1 to
3 feet. 

$$

fzus63 kmqt 231401
glfls 
expires:202610232000;;053149

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri oct 23 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...

30.5 inch high pressure extending from southern quebec into new 
england is extending a 30.2 inch ridge over lake superior. by 
saturday afternoon, a 29.2 inch low over northern manitoba drags a 
30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz265-232000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt fri oct 23 2026

.rest of today...south winds 10 to 20 knots backing southeast in
the afternoon. waves calm to 2 feet building to 1 to 3 feet. 
.tonight...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves 1 to 3 feet. 
.saturday...south winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...south winds 20 to 30 knots becoming west 15 to
25 knots after midnight. a chance of showers. waves subsiding to
1 to 3 feet. 
.sunday...west winds 15 to 25 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.sunday night...northwest winds 15 to 25 knots veering north
after midnight. waves 1 to 3 feet. 
.monday...north winds 10 to 20 knots veering northeast. waves
subsiding to calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots increasing to 15 to
25 knots. a chance of showers. waves building to 1 to 3 feet. 

$$