fzus61 kbuf 261402
glflo 
expires:202510262100;;796069

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sun oct 26 2025

for waters beyond five nautical miles of shore on lake ontario

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...an expansive 30.5 inch high will slowly build east into 
quebec through tonight, where it will then remain anchored through 
wednesday night before slowly weakening. a surface low will then 
approach the lake from the south later in the week while 
strengthening to around 29.4 inches.


loz062-262100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt sun oct 26 2025

.this afternoon...northeast winds 10 knots or less. waves 2 feet
or less. 
.tonight...northeast winds 10 knots or less. a chance of showers
late. waves 1 foot or less. 
.monday...northeast winds 10 to 15 knots becoming east 15 to
20 knots. a chance of showers. waves 1 to 3 feet. 
.monday night...east winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet. 
.tuesday...east winds 15 to 20 knots. waves 2 to 4 feet building
to 3 to 6 feet. 
.wednesday...east winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers wednesday night. waves 2 to 4 feet.
.thursday...east winds 15 to 25 knots becoming northeast. a
chance of showers during the day, then showers likely thursday
night. waves 3 to 6 feet building to 5 to 7 feet. waves
occasionally around 9 feet. 

$$

fzus61 kbuf 261402
glflo 
expires:202510262100;;796070

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sun oct 26 2025

for waters beyond five nautical miles of shore on lake ontario

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...an expansive 30.5 inch high will slowly build east into 
quebec through tonight, where it will then remain anchored through 
wednesday night before slowly weakening. a surface low will then 
approach the lake from the south later in the week while 
strengthening to around 29.4 inches.


loz063>065-262100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt sun oct 26 2025

.this afternoon...northeast winds 5 to 10 knots becoming north.
waves 2 feet or less. 
.tonight...northeast winds 10 knots or less. waves 1 foot or
less. 
.monday...northeast winds 5 to 15 knots. a chance of rain showers
in the morning. waves 2 feet or less. 
.monday night...northeast winds 10 to 15 knots becoming east.
waves 1 to 3 feet. 
.tuesday...east winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet. 
.wednesday...east winds 10 to 15 knots. a chance of showers
wednesday night. waves 1 to 3 feet. 
.thursday...east winds 15 to 25 knots becoming northeast. a
chance of showers during the day, then showers likely thursday
night. waves 2 to 4 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 

$$

fzus63 kdtx 261347
glfsc 
expires:202510262200;;795560

lake st clair forecast
national weather service detroit/pontiac mi
947 am edt sun oct 26 2025

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, will move into quebec
through today. leading to light east-northeast winds. increasing
gradient brings elevated east-southeast winds monday into
tuesday.


lcz460-262200-
lake st clair-
947 am edt sun oct 26 2025

.rest of today...northeast winds 5 to 10 knots. sunny. waves 2 feet
or less.
.tonight...northeast winds 10 to 15 knots becoming east 15 to 20
knots early in the morning. clear. waves 2 feet or less.
.monday...east winds 15 to 20 knots. sunny. waves 1 to 3 feet.
.monday night...east winds 20 to 25 knots diminishing to 15 to 20
knots after midnight. clear. waves 2 to 4 feet.
.tuesday...east winds 15 to 20 knots increasing to 20 to 25 knots in
the evening. mostly sunny becoming sunny in the afternoon becoming
mostly clear. waves 1 to 3 feet.
.wednesday...northeast winds 20 to 25 knots. partly cloudy. a chance
of light showers. waves 1 to 3 feet.
.thursday...north winds 15 to 20 knots. partly cloudy. a chance of
light showers. waves 1 to 3 feet.

$$

fzus63 kdtx 261346
glflh 
expires:202510262200;;795557

open lake forecast for lake huron
national weather service detroit/pontiac mi
946 am edt sun oct 26 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, will move into quebec
through today. leading to light east-northeast winds. increasing
gradient brings elevated east-southeast winds monday into
tuesday.


lhz362-363-462-262200-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
946 am edt sun oct 26 2025

.rest of today...northeast winds 5 to 10 knots. waves 2 feet or
less. 
.tonight...east winds 5 to 10 knots. waves 2 feet or less. 
.monday...east winds 10 to 15 knots. waves 1 to 3 feet. 
.monday night...east winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. waves 3 to 5 feet
building to 4 to 6 feet after midnight. waves occasionally around
8 feet. 
.tuesday...east winds 15 to 20 knots. waves 4 to 6 feet. 
.wednesday...east winds 15 to 20 knots decreasing to 10 to
15 knots until early morning. waves 3 to 5 feet. waves
occasionally around 8 feet. 
.thursday...northeast winds 10 to 15 knots becoming north 15 to
20 knots until early morning. a chance of showers until early
morning. waves 3 to 5 feet. 


$$

fzus63 kdtx 261346
glflh 
expires:202510262200;;795556

open lake forecast for lake huron
national weather service detroit/pontiac mi
946 am edt sun oct 26 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, will move into quebec
through today. leading to light east-northeast winds. increasing
gradient brings elevated east-southeast winds monday into
tuesday.


lhz361-262200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
946 am edt sun oct 26 2025

.rest of today...light and variable winds. waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots. waves 2 feet or less. 
.monday...east winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. waves 1 to 3 feet. 
.monday night...east winds 10 to 15 knots becoming southeast
15 to 20 knots in the late evening and overnight. waves 3 to
5 feet. 
.tuesday...southeast winds 15 to 20 knots. waves 4 to 6 feet. 
.wednesday...east winds 10 to 15 knots decreasing to 5 to
10 knots until early morning. waves 3 to 5 feet subsiding to 1 to
3 feet in the late evening and early morning. waves occasionally
around 8 feet. 
.thursday...northeast winds 5 to 10 knots becoming north 10 to
15 knots in the late evening and early morning. a chance of
showers in the late evening and early morning. waves 1 to 3 feet.


$$

fzus63 kdtx 261346
glflh 
expires:202510262200;;795558

open lake forecast for lake huron
national weather service detroit/pontiac mi
946 am edt sun oct 26 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, will move into quebec
through today. leading to light east-northeast winds. increasing
gradient brings elevated east-southeast winds monday into
tuesday.


lhz463-464-262200-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
946 am edt sun oct 26 2025

.rest of today...northeast winds 5 to 10 knots. waves 2 feet or
less. 
.tonight...northeast winds 5 to 10 knots becoming east 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet. 
.monday...east winds 10 to 15 knots. waves 2 to 4 feet. 
.monday night...east winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.tuesday...east winds 15 to 20 knots increasing to 20 to 25 knots
late in the afternoon...then decreasing to 15 to 20 knots late in
the evening. waves 4 to 6 feet. 
.wednesday...east winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and early morning. a chance of
showers in the late evening and early morning. waves 3 to 5 feet.
waves occasionally around 8 feet. 
.thursday...northeast winds 10 to 15 knots increasing to 15 to
20 knots until early evening...then backing to the north in the
late evening and early morning. a chance of showers. waves 3 to
5 feet. 


$$

fzus63 kmkx 261405
glflm 
expires:202510262130;;796309

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
905 am cdt sun oct 26 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...

no major changes to the going forecast at this time.

strong high pressure around 30.6 inches over southeast ontario 
today will shift into quebec tonight into monday night. increasing
southeast to east winds are expected during this period. weak low
pressure around 29.8 inches should develop over missouri on 
tuesday and shift into the ohio river valley wednesday. this low 
should strengthen to around 29.6 inches and eventually shift into 
the northeast by the end of the week. 

east to southeast winds will continue to be gusty through 
wednesday, with the high positioned to the northeast. winds should
then shift northeast to north wednesday night into thursday, as 
the low pressure system passes well southeast of the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-262130-
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-
905 am cdt sun oct 26 2025

sheboygan wi to pentwater mi south...

.rest of today...southeast winds 10 to 20 kt becoming east. waves
2 to 4 ft. 
.tonight...east winds 10 to 20 kt becoming southeast 15 to 25 kt,
then becoming east 10 to 20 kt late. waves 3 to 5 ft. 
.monday...east winds 10 to 20 kt increasing to 15 to 25 kt. waves
4 to 7 ft occasionally to 9 ft. 
.monday night...east winds to 30 kt. waves 7 to 10 ft
occasionally to 13 ft. 
.tuesday...east winds to 30 kt. waves 7 to 10 ft occasionally to
13 ft. 
.tuesday night...east winds to 30 kt. chance of showers. waves
8 to 11 ft occasionally to 14 ft. 
.wednesday...east winds to 30 kt. chance of showers. waves 8 to
11 ft occasionally to 14 ft. 
.thursday...northeast winds 15 to 25 kt becoming north. chance of
rain showers. waves 4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmkx 261405
glflm 
expires:202510262130;;796308

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
905 am cdt sun oct 26 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...

no major changes to the going forecast at this time.

strong high pressure around 30.6 inches over southeast ontario 
today will shift into quebec tonight into monday night. increasing
southeast to east winds are expected during this period. weak low
pressure around 29.8 inches should develop over missouri on 
tuesday and shift into the ohio river valley wednesday. this low 
should strengthen to around 29.6 inches and eventually shift into 
the northeast by the end of the week. 

east to southeast winds will continue to be gusty through 
wednesday, with the high positioned to the northeast. winds should
then shift northeast to north wednesday night into thursday, as 
the low pressure system passes well southeast of the region.


lmz261-362-364-366-563-565-567-868-262130-
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-
905 am cdt sun oct 26 2025

sheboygan wi to pentwater mi north...

.rest of today...south winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft. 
.tonight...southeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 3 to 5 ft. 
.monday...southeast winds 10 to 20 kt becoming east. waves 3 to
5 ft. 
.monday night...southeast winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft. 
.tuesday...southeast winds 15 to 25 kt increasing to 30 kt. waves
5 to 8 ft occasionally to 10 ft. 
.tuesday night...east winds to 30 kt diminishing to 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft. 
.wednesday...east winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.thursday...northeast winds 10 to 20 kt becoming north. waves
2 to 4 ft.  

$$

fzus63 kmqt 261401
glfls 
expires:202510262000;;796024

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun oct 26 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 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches. meanwhile, a 29.7 inch trough over the 
northern plains on monday dissipates through tuesday as high 
pressure strengthens over the rockies and a 29.8 inch low develops 
over the southern plains. by the end of the day wednesday, the low 
pressure will be at 29.7 inches over the southeastern u.s. while 
broad 30.3 inch high pressure extends over the plains, northern half 
of the great lakes basin, northern ontario and quebec. wednesday 
night through thursday, the high pressure dissipates while a 29.9 
inch low moves southeast across the canadian prairie and the 
southeastern low lifts northeast along the atlantic coast. this low 
looks to deepen to around 29.4 inches on friday, reaching somewhere 
between the lower great lakes and new england.



lsz266-262000-
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-
1001 am edt sun oct 26 2025

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

$$

fzus63 kmqt 261401
glfls 
expires:202510262000;;796025

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun oct 26 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 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches. meanwhile, a 29.7 inch trough over the 
northern plains on monday dissipates through tuesday as high 
pressure strengthens over the rockies and a 29.8 inch low develops 
over the southern plains. by the end of the day wednesday, the low 
pressure will be at 29.7 inches over the southeastern u.s. while 
broad 30.3 inch high pressure extends over the plains, northern half 
of the great lakes basin, northern ontario and quebec. wednesday 
night through thursday, the high pressure dissipates while a 29.9 
inch low moves southeast across the canadian prairie and the 
southeastern low lifts northeast along the atlantic coast. this low 
looks to deepen to around 29.4 inches on friday, reaching somewhere 
between the lower great lakes and new england.



lsz267-262000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt sun oct 26 2025

.rest of today...south winds 10 to 20 knots. waves calm to
2 feet. 
.tonight...south winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.monday...south winds 10 to 20 knots backing southeast in the
afternoon, then increasing to 15 to 25 knots late. waves building
to 1 to 3 feet, then subsiding to calm to 2 feet. 
.monday night...southeast winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.tuesday...southeast winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...southeast winds 15 to 25 knots backing east
after midnight. waves subsiding to 1 to 3 feet. 
.wednesday...east winds 5 to 15 knots becoming northeast 10 to
20 knots. waves subsiding to calm to 2 feet. 
.thursday...northeast winds 10 to 20 knots backing north. a
chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 261401
glfls 
expires:202510262000;;796020

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun oct 26 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 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches. meanwhile, a 29.7 inch trough over the 
northern plains on monday dissipates through tuesday as high 
pressure strengthens over the rockies and a 29.8 inch low develops 
over the southern plains. by the end of the day wednesday, the low 
pressure will be at 29.7 inches over the southeastern u.s. while 
broad 30.3 inch high pressure extends over the plains, northern half 
of the great lakes basin, northern ontario and quebec. wednesday 
night through thursday, the high pressure dissipates while a 29.9 
inch low moves southeast across the canadian prairie and the 
southeastern low lifts northeast along the atlantic coast. this low 
looks to deepen to around 29.4 inches on friday, reaching somewhere 
between the lower great lakes and new england.



lsz162-262000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt sun oct 26 2025 /901 am cdt sun oct 26 2025/

.rest of today...south winds 10 to 20 knots backing southeast in
the afternoon. waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.monday...south winds 10 to 20 knots backing east late. waves
calm to 2 feet. 
.monday night...southeast winds 15 to 25 knots. a slight chance
of showers after midnight. waves building to 2 to 4 feet. 
.tuesday...southeast winds 15 to 25 knots becoming east 10 to
20 knots by mid afternoon. a chance of showers. waves subsiding
to 1 to 3 feet. 
.tuesday night...east winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. waves
calm to 2 feet. 
.thursday...west winds 5 to 15 knots becoming northwest 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 261401
glfls 
expires:202510262000;;796021

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun oct 26 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 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches. meanwhile, a 29.7 inch trough over the 
northern plains on monday dissipates through tuesday as high 
pressure strengthens over the rockies and a 29.8 inch low develops 
over the southern plains. by the end of the day wednesday, the low 
pressure will be at 29.7 inches over the southeastern u.s. while 
broad 30.3 inch high pressure extends over the plains, northern half 
of the great lakes basin, northern ontario and quebec. wednesday 
night through thursday, the high pressure dissipates while a 29.9 
inch low moves southeast across the canadian prairie and the 
southeastern low lifts northeast along the atlantic coast. this low 
looks to deepen to around 29.4 inches on friday, reaching somewhere 
between the lower great lakes and new england.



lsz263-262000-
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-
1001 am edt sun oct 26 2025

.rest of today...south winds 5 to 15 knots backing southeast
late. waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots. waves building to 1 to
3 feet. 
.monday...south winds 5 to 15 knots backing southeast in the
afternoon, then increasing to 10 to 20 knots late. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.monday night...southeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...southeast winds 15 to 25 knots. a slight chance of
showers. waves building to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...southeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. waves
subsiding to calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 261401
glfls 
expires:202510262000;;796022

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun oct 26 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 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches. meanwhile, a 29.7 inch trough over the 
northern plains on monday dissipates through tuesday as high 
pressure strengthens over the rockies and a 29.8 inch low develops 
over the southern plains. by the end of the day wednesday, the low 
pressure will be at 29.7 inches over the southeastern u.s. while 
broad 30.3 inch high pressure extends over the plains, northern half 
of the great lakes basin, northern ontario and quebec. wednesday 
night through thursday, the high pressure dissipates while a 29.9 
inch low moves southeast across the canadian prairie and the 
southeastern low lifts northeast along the atlantic coast. this low 
looks to deepen to around 29.4 inches on friday, reaching somewhere 
between the lower great lakes and new england.



lsz264-262000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt sun oct 26 2025

.rest of today...south winds 5 to 15 knots increasing to 10 to
20 knots late. waves calm to 2 feet building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.tonight...south winds 10 to 20 knots diminishing to 5 to
15 knots late. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.monday...south winds 10 to 20 knots backing southeast late.
waves building to 2 to 4 feet. 
.monday night...southeast winds 15 to 25 knots. waves building to
4 to 7 feet occasionally to 9 feet. 
.tuesday...southeast winds 15 to 25 knots. waves subsiding to
3 to 6 feet occasionally to 8 feet. 
.tuesday night...southeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to 2 to 4 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. waves
subsiding to calm to 2 feet. 
.thursday...north winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 261401
glfls 
expires:202510262000;;796023

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun oct 26 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 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches. meanwhile, a 29.7 inch trough over the 
northern plains on monday dissipates through tuesday as high 
pressure strengthens over the rockies and a 29.8 inch low develops 
over the southern plains. by the end of the day wednesday, the low 
pressure will be at 29.7 inches over the southeastern u.s. while 
broad 30.3 inch high pressure extends over the plains, northern half 
of the great lakes basin, northern ontario and quebec. wednesday 
night through thursday, the high pressure dissipates while a 29.9 
inch low moves southeast across the canadian prairie and the 
southeastern low lifts northeast along the atlantic coast. this low 
looks to deepen to around 29.4 inches on friday, reaching somewhere 
between the lower great lakes and new england.



lsz265-262000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt sun oct 26 2025

.rest of today...south winds 10 to 20 knots increasing to 15 to
25 knots late. waves calm to 2 feet building to 1 to 3 feet. 
.tonight...south winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves building to 2 to 4 feet, then
subsiding to calm to 2 feet. 
.monday...south winds 10 to 20 knots becoming southeast 15 to
25 knots in the afternoon. waves building to 1 to 3 feet. 
.monday night...southeast winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...southeast winds 15 to 25 knots. waves subsiding to
2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet.
.tuesday night...southeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.wednesday...east winds 10 to 20 knots becoming northeast 5 to
15 knots. waves subsiding to calm to 2 feet. 
.thursday...north winds 5 to 15 knots becoming northwest 10 to
20 knots. a chance of showers. waves calm to 2 feet. 

$$