fzus61 kbuf 270202
glflo 
expires:202510270900;;824677

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm 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.


loz062-270900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sun oct 26 2025

.overnight...east winds 5 to 15 knots becoming southeast.
waves 2 feet or less. 
.monday...east winds 5 to 15 knots. 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 25 knots. waves 2 to 4 feet building
to 3 to 6 feet. 
.tuesday night...east winds 15 to 20 knots. waves 3 to 6 feet. 
.wednesday...east winds 15 to 20 knots. waves 3 to 5 feet. 
.thursday...east winds 15 to 25 knots increasing to 30 knots. a
chance of showers during the day, then showers likely thursday
night. waves 3 to 5 feet building to 6 to 10 feet. waves
occasionally around 13 feet. 
.friday...east winds to 30 knots becoming west. showers. waves
6 to 10 feet subsiding to 5 to 8 feet. waves occasionally around
13 feet. 

$$

fzus61 kbuf 270202
glflo 
expires:202510270900;;824678

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm 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>065-270900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sun oct 26 2025

.overnight...northeast winds 5 to 15 knots. waves 2 feet or
less. 
.monday...northeast winds 5 to 10 knots. 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 becoming northeast 15 to
20 knots. waves 2 to 4 feet building to 3 to 5 feet. 
.tuesday night...northeast winds 15 to 20 knots becoming east
10 to 15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.wednesday...northeast winds 10 to 15 knots becoming east. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...east winds 15 to 25 knots. a chance of showers during
the day, then showers likely thursday night. waves 2 to 4 feet
building to 5 to 8 feet. waves occasionally around 10 feet. 
.friday...east winds to 30 knots becoming west. showers. waves
5 to 9 feet. waves occasionally around 11 feet. 

$$

fzus61 kcle 270150
glfle 
expires:202510270815;;824267

open lake forecast for lake erie
national weather service cleveland oh
950 pm edt sun oct 26 2025

for waters beyond five nautical miles of shore on lake erie

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 ridge averaging 30.40 inches lingers over lake erie region 
through tonight. this ridge will exit early this week, replaced 
by a trough averaging 30.00 inches by wednesday, falling rapidly 
to 29.30 inches by thursday night/friday.


lez162>164-270815-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
950 pm edt sun oct 26 2025

.overnight...east winds 10 to 15 knots. waves 1 to 3 feet. 
.monday...east winds 15 to 25 knots. waves 2 to 4 feet building
to 3 to 6 feet. 
.monday night...east winds 15 to 25 knots. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.tuesday...east winds 15 to 25 knots. waves 3 to 5 feet. 
.tuesday night...east winds 20 to 25 knots. waves 3 to 6 feet. 
.wednesday...east winds 15 to 25 knots. a chance of showers.
waves 3 to 5 feet building to 5 to 8 feet. waves occasionally
around 10 feet. 
.thursday...east winds to 30 knots becoming northeast. showers
likely. waves 4 to 7 feet building to 6 to 9 feet. waves
occasionally around 11 feet. 
.friday...north winds to 30 knots becoming west. showers likely
during the day, then a chance of showers friday night. waves 4 to
7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet. 

$$

fzus61 kcle 270150
glfle 
expires:202510270815;;824268

open lake forecast for lake erie
national weather service cleveland oh
950 pm edt sun oct 26 2025

for waters beyond five nautical miles of shore on lake erie

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 ridge averaging 30.40 inches lingers over lake erie region 
through tonight. this ridge will exit early this week, replaced 
by a trough averaging 30.00 inches by wednesday, falling rapidly 
to 29.30 inches by thursday night/friday.


lez165>168-270815-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
950 pm edt sun oct 26 2025

.overnight...east winds 10 to 15 knots. waves 1 to 3 feet. 
.monday...east winds 15 to 25 knots. waves 2 to 4 feet building
to 3 to 6 feet. 
.monday night...east winds to 30 knots diminishing to 15 to
25 knots. waves 5 to 8 feet subsiding to 3 to 6 feet. waves
occasionally around 10 feet. 
.tuesday...east winds 15 to 25 knots. waves 3 to 6 feet. 
.tuesday night...east winds 15 to 25 knots. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.wednesday...east winds 15 to 25 knots. a chance of showers
wednesday night. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.thursday...east winds to 30 knots becoming northeast. showers.
waves 5 to 8 feet building to 6 to 10 feet. waves occasionally
around 13 feet. 
.friday...northwest gales to 35 knots becoming west and
diminishing to 30 knots. showers. waves 5 to 8 feet building to
6 to 10 feet. waves occasionally around 13 feet. 

$$

fzus61 kcle 270150
glfle 
expires:202510270815;;824269

open lake forecast for lake erie
national weather service cleveland oh
950 pm edt sun oct 26 2025

for waters beyond five nautical miles of shore on lake erie

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 ridge averaging 30.40 inches lingers over lake erie region 
through tonight. this ridge will exit early this week, replaced 
by a trough averaging 30.00 inches by wednesday, falling rapidly 
to 29.30 inches by thursday night/friday.


lez061-169-270815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
950 pm edt sun oct 26 2025

.overnight...northeast winds 5 to 15 knots becoming east.
waves 1 to 2 feet. 
.monday...east winds 10 to 15 knots becoming northeast 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.monday night...east winds 15 to 25 knots. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.tuesday...east winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday night...east winds 15 to 20 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.wednesday...east winds 15 to 20 knots. a chance of showers
wednesday night. waves 1 to 3 feet building to 3 to 6 feet. 
.thursday...east winds 15 to 25 knots becoming northeast.
showers. waves 3 to 6 feet building to 4 to 7 feet, then
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.friday...northeast winds 15 to 20 knots becoming west and
increasing to 30 knots. showers. waves 3 to 5 feet building to
5 to 9 feet. waves occasionally around 11 feet. 

$$

fzus63 kdtx 270101
glflh 
expires:202510270915;;822720

open lake forecast for lake huron
national weather service detroit/pontiac mi
901 pm 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, 30.50 inches, centered over quebec will
maintain influence across the region during the early week
period. an increasing gradient brings elevated east-southeast
winds monday into tuesday.


lhz361-270915-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
901 pm edt sun oct 26 2025

.rest of 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 afternoon. 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. 
.tuesday...southeast winds 15 to 20 knots becoming east 20 to
25 knots with gusts to around 30 knots early in the afternoon.
waves 4 to 6 feet. 
.tuesday night...east winds 15 to 20 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.wednesday...east winds 15 to 20 knots decreasing to 5 to
10 knots. waves 3 to 5 feet subsiding to 1 to 3 feet late in the
evening. 
.thursday...northeast winds 10 to 15 knots. a chance of showers
in the late evening and early morning. waves 1 to 3 feet building
to 2 to 4 feet in the late evening and early morning. 
.friday...northeast winds 10 to 15 knots becoming north 15 to
20 knots until early evening...then decreasing to 10 to 15 knots
in the late evening and early morning. a chance of showers early
in the morning...then showers likely. waves 3 to 5 feet. 


$$

fzus63 kdtx 270101
glfsc 
expires:202510270915;;822719

lake st clair forecast
national weather service detroit/pontiac mi
901 pm 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, 30.50 inches, centered over quebec will
maintain influence across the region during the early week
period. an increasing gradient brings elevated east-southeast
winds monday into tuesday.


lcz460-270915-
lake st clair-
901 pm edt sun oct 26 2025

.rest of tonight...northeast winds 10 to 15 knots. clear. waves 2
feet or less.
.monday...northeast winds 10 to 15 knots becoming east 15 to 20
knots late in the afternoon. sunny. waves 1 to 3 feet.
.monday night...east winds 20 to 25 knots. clear. waves 2 to 4 feet.
.tuesday...east winds 15 to 20 knots. sunny. waves 1 to 3 feet.
.tuesday night...east winds 20 to 25 knots. mostly clear. waves 2 to
4 feet.
.wednesday...east winds 20 to 25 knots diminishing to 15 to 20 knots
in the afternoon...then becoming northeast 20 to 25 knots in the
evening. mostly sunny...then partly cloudy with a chance of light
showers in the evening. waves 2 to 4 feet.
.thursday...northeast winds 20 to 25 knots. mostly cloudy with light
showers likely. waves 2 to 4 feet.
.friday...northwest winds 20 to 25 knots. mostly cloudy. light
showers likely. waves 2 to 4 feet.

$$

fzus63 kdtx 270101
glflh 
expires:202510270915;;822722

open lake forecast for lake huron
national weather service detroit/pontiac mi
901 pm 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, 30.50 inches, centered over quebec will
maintain influence across the region during the early week
period. an increasing gradient brings elevated east-southeast
winds monday into tuesday.


lhz463-464-270915-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
901 pm edt sun oct 26 2025

.rest of tonight...east winds 10 to 15 knots. 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 increasing to 20 to
25 knots after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.tuesday...east winds 15 to 20 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.tuesday night...east winds 20 to 25 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.wednesday...east winds 15 to 20 knots. a chance of showers late
in the evening. waves 4 to 6 feet. waves occasionally around
8 feet. 
.thursday...east winds 15 to 20 knots becoming northeast 20 to
25 knots until early morning. a chance of showers early in the
morning...then showers likely until early morning. waves 4 to
6 feet. waves occasionally around 8 feet. 
.friday...north winds 20 to 25 knots with gusts to around
30 knots becoming northwest 15 to 20 knots in the late evening
and early morning. showers likely. waves 5 to 7 feet. waves
occasionally around 10 feet. 


$$

fzus63 kdtx 270101
glflh 
expires:202510270915;;822721

open lake forecast for lake huron
national weather service detroit/pontiac mi
901 pm 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, 30.50 inches, centered over quebec will
maintain influence across the region during the early week
period. an increasing gradient brings elevated east-southeast
winds monday into tuesday.


lhz362-363-462-270915-
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-
901 pm edt sun oct 26 2025

.rest of tonight...east 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 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. 
.tuesday night...east winds 15 to 20 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.wednesday...east winds 15 to 20 knots decreasing to 10 to
15 knots late in the evening. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.thursday...east winds 10 to 15 knots becoming northeast 15 to
20 knots. a chance of showers until early morning. waves 3 to
5 feet building to 5 to 7 feet until early morning. waves
occasionally around 10 feet. 
.friday...northeast winds 15 to 20 knots becoming north 20 to
25 knots early in the evening...then decreasing to 15 to 20 knots
in the late evening and early morning. showers likely. waves 6 to
9 feet. waves occasionally around 12 feet. 


$$

fzus63 kmkx 270204
glflm 
expires:202510270930;;824707

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
904 pm 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...

strong high pressure around 30.6 inches will linger over 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, deepening to 29.6 inches. this low will
shift east across the ohio river valley and eventually northeast 
towards maine / quebec towards the end of the week, deepening 
through the later half of this period. 

east winds will continue to be gusty through wednesday, turning
northeast and eventually northwest later this week as low pressure
passes well south / east of the region. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-270930-
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-
904 pm cdt sun oct 26 2025

sheboygan wi to pentwater mi south...

.rest of tonight...east winds 10 to 20 kt increasing to 15 to
25 kt. waves 3 to 5 ft. 
.monday...east winds 10 to 20 kt. waves 3 to 5 ft. 
.monday night...east winds to 30 kt diminishing to 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft building to 8 to 11 ft
occasionally to 14 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 12 ft occasionally to 16 ft. 
.wednesday...east winds to 30 kt. waves 8 to 11 ft occasionally
to 14 ft. 
.wednesday night...northeast winds to 30 kt diminishing to 15 to
25 kt. chance of showers. waves 7 to 10 ft occasionally to 13 ft
subsiding to 6 to 9 ft occasionally to 12 ft. 
.thursday...northeast winds 15 to 25 kt becoming north. chance of
showers. waves 5 to 8 ft occasionally to 10 ft. 
.friday...northwest winds to 30 kt. chance of rain showers. waves
10 to 14 ft occasionally to 18 ft.  

$$

fzus63 kmkx 270204
glflm 
expires:202510270930;;824706

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
904 pm 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...

strong high pressure around 30.6 inches will linger over 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, deepening to 29.6 inches. this low will
shift east across the ohio river valley and eventually northeast 
towards maine / quebec towards the end of the week, deepening 
through the later half of this period. 

east winds will continue to be gusty through wednesday, turning
northeast and eventually northwest later this week as low pressure
passes well south / east of the region. 


lmz261-362-364-366-563-565-567-868-270930-
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-
904 pm cdt sun oct 26 2025

sheboygan wi to pentwater mi north...

.rest of tonight...southeast winds 10 to 15 kt increasing to
10 to 20 kt. waves 2 to 4 ft. 
.monday...southeast winds 10 to 20 kt becoming east. waves 2 to
4 ft. 
.monday night...east winds 15 to 25 kt becoming southeast. waves
3 to 5 ft building to 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 6 to 9 ft occasionally to 12 ft. 
.wednesday...east winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.wednesday night...northeast winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.thursday...northeast winds 10 to 20 kt becoming north. waves
2 to 4 ft. 
.friday...northwest winds 15 to 25 kt. chance of rain showers.
waves 4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmqt 270201
glfls 
expires:202510270800;;824628

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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 becomes centered 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.



lsz162-270800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt sun oct 26 2025 /901 pm cdt sun oct 26 2025/

.rest of tonight...south winds 10 to 20 knots. waves 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. waves building to
2 to 4 feet. 
.tuesday...southeast winds 15 to 25 knots becoming east 10 to
20 knots by mid afternoon. a slight chance of showers. waves 2 to
4 feet. 
.tuesday night...east winds 10 to 20 knots. a slight chance of
showers. waves subsiding to 1 to 3 feet. 
.wednesday...east winds 10 to 20 knots. waves subsiding to calm
to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 
.friday...northwest winds 10 to 20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 270201
glfls 
expires:202510270800;;824629

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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 becomes centered 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.



lsz263-270800-
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 pm edt sun oct 26 2025

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

$$

fzus63 kmqt 270201
glfls 
expires:202510270800;;824630

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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 becomes centered 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.



lsz264-270800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt sun oct 26 2025

.rest of tonight...south winds 10 to 20 knots diminishing to 5 to
15 knots late. waves 2 to 4 feet 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. waves subsiding to calm to
2 feet. 
.wednesday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 
.friday...north winds 15 to 25 knots. a chance of rain showers.
waves building to 3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 270201
glfls 
expires:202510270800;;824631

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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 becomes centered 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.



lsz265-270800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt sun oct 26 2025

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

$$

fzus63 kmqt 270201
glfls 
expires:202510270800;;824632

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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 becomes centered 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.



lsz266-270800-
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 pm edt sun oct 26 2025

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

$$

fzus63 kmqt 270201
glfls 
expires:202510270800;;824633

open lake forecast for lake superior
national weather service marquette mi
1001 pm 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 becomes centered 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.



lsz267-270800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt sun oct 26 2025

.rest of tonight...south winds 10 to 20 knots. waves calm to
2 feet. 
.monday...south winds 10 to 20 knots backing southeast in the
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.tuesday...southeast winds 20 to 30 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.tuesday night...southeast winds 15 to 25 knots backing east
after midnight. waves subsiding to 1 to 3 feet. 
.wednesday...east winds 10 to 20 knots becoming northeast 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...northeast winds 10 to 20 knots becoming east
5 to 15 knots after midnight. waves calm to 2 feet. 
.thursday...northeast winds 10 to 20 knots backing north. a
chance of showers. waves calm to 2 feet. 
.friday...north winds 15 to 25 knots. a chance of showers, then
showers likely. waves building to 3 to 5 feet occasionally to
7 feet. 

$$