fzus61 kbuf 231403
glflo 
expires:202610232100;;053301

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri oct 23 2026

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...a ridge averaging 30.5 inches affects the lake through 
sunday night as the embedded high pressure center drifts generally 
southward from central quebec toward the mid-atlantic states. the 
ridge then exits southeastward as a weak cold front sweeps 
southeastward across the lake on monday. behind the front, another 
ridge averaging 30.5 inches should build from central canada and 
vicinity through this tuesday.


loz062-232100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri oct 23 2026

.this afternoon...east winds 10 to 15 knots. waves 2 to 3 feet. 
.tonight...east winds 5 to 15 knots becoming southeast. waves
1 to 3 feet. 
.saturday...southeast winds 10 knots or less becoming east. waves
1 foot or less. 
.saturday night...east winds 10 knots or less becoming south.
waves 1 foot or less. 
.sunday...southwest winds 5 to 15 knots. waves 2 feet or less. 
.monday...west winds 5 to 15 knots becoming northeast. waves
2 feet or less building to 2 to 3 feet. 
.tuesday...northeast winds 5 to 15 knots becoming east. waves
1 to 3 feet. 

$$

fzus61 kbuf 231403
glflo 
expires:202610232100;;053302

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri oct 23 2026

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...a ridge averaging 30.5 inches affects the lake through 
sunday night as the embedded high pressure center drifts generally 
southward from central quebec toward the mid-atlantic states. the 
ridge then exits southeastward as a weak cold front sweeps 
southeastward across the lake on monday. behind the front, another 
ridge averaging 30.5 inches should build from central canada and 
vicinity through this tuesday.


loz063>065-232100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri oct 23 2026

.this afternoon...northeast winds 5 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.tonight...northeast winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.saturday...south winds less than 10 knots becoming east. waves
1 foot or less. 
.saturday night...east winds 10 knots or less becoming south.
waves 1 foot or less. 
.sunday...south winds 5 to 15 knots becoming southwest. waves
2 feet or less. 
.monday...west winds 5 to 10 knots becoming northeast and
increasing to 15 to 20 knots. waves 2 feet or less building to
2 to 4 feet. 
.tuesday...northeast winds 15 to 20 knots becoming east 5 to
15 knots. waves 2 to 4 feet subsiding to 1 foot or less. 

$$

fzus61 kcle 231353
glfle 
expires:202610232015;;052770

open lake forecast for lake erie
national weather service cleveland oh
953 am edt fri oct 23 2026

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... 
high pressure 30.50 inches over eastern canada will continue to 
build south into the new england states and strengthen to 30.60
inches by saturday. this high will continue south along the east 
coast on sunday. a weak front will cross the great lakes on 
monday. high pressure 30.50 inches will return from the northeast
on tuesday.


lez162>164-232015-
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-
953 am edt fri oct 23 2026

.rest of today...east winds 10 knots or less. patchy fog late
this morning. waves 1 foot or less. 
.tonight...east winds 5 to 10 knots becoming southeast. waves
2 feet or less. 
.saturday...southeast winds less than 10 knots. waves 1 foot or
less. 
.saturday night...east winds 5 to 10 knots becoming south. waves
1 foot or less. 
.sunday...south winds 10 knots or less becoming southwest. waves
1 foot or less. 
.monday...west winds 10 knots or less becoming northeast 10 to
15 knots. waves 1 to 3 feet. 
.tuesday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 

$$

fzus61 kcle 231353
glfle 
expires:202610232015;;052771

open lake forecast for lake erie
national weather service cleveland oh
953 am edt fri oct 23 2026

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... 
high pressure 30.50 inches over eastern canada will continue to 
build south into the new england states and strengthen to 30.60
inches by saturday. this high will continue south along the east 
coast on sunday. a weak front will cross the great lakes on 
monday. high pressure 30.50 inches will return from the northeast
on tuesday.


lez165>167-232015-
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-
953 am edt fri oct 23 2026

.rest of today...southeast winds 5 to 15 knots becoming
northeast. waves 1 to 2 feet. 
.tonight...east winds 5 to 15 knots becoming southeast. waves
1 to 3 feet. 
.saturday...south winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.saturday night...east winds 5 to 10 knots becoming south. waves
1 foot or less. 
.sunday...south winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.monday...west winds 5 to 15 knots becoming northeast. waves
2 feet or less building to 2 to 3 feet. 
.tuesday...northeast winds 10 to 15 knots becoming east. waves
2 to 4 feet subsiding to 1 to 3 feet. 

$$

fzus61 kcle 231353
glfle 
expires:202610232015;;052772

open lake forecast for lake erie
national weather service cleveland oh
953 am edt fri oct 23 2026

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... 
high pressure 30.50 inches over eastern canada will continue to 
build south into the new england states and strengthen to 30.60
inches by saturday. this high will continue south along the east 
coast on sunday. a weak front will cross the great lakes on 
monday. high pressure 30.50 inches will return from the northeast
on tuesday.


lez061-168-169-232015-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
953 am edt fri oct 23 2026

.rest of today...east winds 5 to 10 knots becoming northeast.
waves 2 feet or less. 
.tonight...northeast winds 5 to 10 knots becoming south. waves
2 feet or less. 
.saturday...south winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.saturday night...east winds 5 to 10 knots becoming south. waves
1 foot or less. 
.sunday...south winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.monday...southwest winds 5 to 15 knots becoming northeast. waves
1 to 2 feet. 
.tuesday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 

$$

fzus63 kdtx 231346
glfsc 
expires:202610232200;;052658

lake st clair forecast
national weather service detroit/pontiac mi
946 am edt fri oct 23 2026

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.


lcz460-232200-
lake st clair-
946 am edt fri oct 23 2026

.rest of today...northeast winds 5 to 10 knots late in the morning
becoming light and variable. mostly sunny. waves 2 feet or less.
.tonight...east winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.saturday...east winds 5 to 10 knots until late afternoon becoming
light and variable. mostly sunny. waves 2 feet or less.
.saturday night...southeast winds 5 to 10 knots becoming light and
variable. mostly clear. waves 2 feet or less.
.sunday...south winds 5 to 10 knots. mostly sunny becoming partly
cloudy. waves 2 feet or less.
.monday...northeast winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
.tuesday...east winds 10 to 15 knots. mostly cloudy. waves 2 feet or
less.

$$

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 231912
glflm 
expires:202610240315;;067078

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
212 pm 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 afternoon, 
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 have been dense, will linger through the first half of 
the afternoon. based on observational trends, have maintained the 
marine dense fog advisory across portions of the waters through 3 
pm cdt, and will be monitoring for additional adjustments. 
expecting fog to fully dissipate by early evening at the latest. 
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 friday.


lmz261-362-364-366-563-565-567-868-240315-
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-
212 pm cdt fri oct 23 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until 3 pm cdt this afternoon...

.tonight...south winds 10 to 15 kt. patchy fog. waves 1 to 3 ft. 
.saturday...south winds 10 to 20 kt increasing to 30 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 to 30 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 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.monday...north winds 10 to 20 kt. waves 3 to 5 ft. 
.monday night...northeast winds 15 to 25 kt diminishing to 10 to
20 kt. waves 3 to 5 ft. 
.tuesday...east winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft.  

$$

fzus63 kmkx 231912
glflm 
expires:202610240315;;067079

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
212 pm 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 afternoon, 
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 have been dense, will linger through the first half of 
the afternoon. based on observational trends, have maintained the 
marine dense fog advisory across portions of the waters through 3 
pm cdt, and will be monitoring for additional adjustments. 
expecting fog to fully dissipate by early evening at the latest. 
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 friday.


lmz669-671-673-675-240315-
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-
212 pm cdt fri oct 23 2026

sheboygan wi to pentwater mi south to winthrop harbor il to south
haven mi...

...dense fog advisory in effect until 3 pm cdt this afternoon...

.tonight...southeast winds 5 to 10 kt becoming south 10 to 15 kt.
patchy fog. 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 10 to 15 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. 
.monday night...northeast winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.tuesday...east winds 10 to 20 kt. waves 3 to 5 ft. 
.wednesday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft.  

$$

fzus63 kmkx 231912
glflm 
expires:202610240315;;067080

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
212 pm 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 afternoon, 
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 have been dense, will linger through the first half of 
the afternoon. based on observational trends, have maintained the 
marine dense fog advisory across portions of the waters through 3 
pm cdt, and will be monitoring for additional adjustments. 
expecting fog to fully dissipate by early evening at the latest. 
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 friday.


lmz080-777-779-870-872-874-876-878-240315-
lake michigan from michigan city in to st. joseph mi 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-
212 pm cdt fri oct 23 2026

winthrop harbor il to south haven mi south...

.tonight...southeast winds 5 to 10 kt increasing to 10 to 15 kt
late this evening, then becoming southeast 10 to 15 kt after
midnight becoming south late. patchy fog overnight. waves 1 to
3 ft. 
.saturday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.saturday night...south winds 10 to 20 kt. waves 3 to 5 ft. 
.sunday...south winds 10 to 20 kt. waves 2 to 4 ft. 
.sunday night...southwest winds 10 to 15 kt veering to northwest
10 to 20 kt. waves 1 to 3 ft. 
.monday...northeast winds 10 to 20 kt becoming north. waves 3 to
5 ft. 
.monday night...northeast winds 15 to 25 kt becoming east 10 to
20 kt. waves 3 to 5 ft. 
.tuesday...east winds 10 to 20 kt. waves 3 to 5 ft subsiding to
2 to 4 ft. 
.wednesday...south winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmkx 231346
glflm 
expires:202610232130;;052668

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.


lmz080-779-232130-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
846 am cdt fri oct 23 2026

wilmette harbor il to st. joseph mi south...

.rest of today...southeast winds 5 to 10 kt becoming east. waves
1 ft or less. 
.tonight...east winds 5 to 10 kt becoming southeast 10 to 15 kt.
waves 1 to 2 ft. 
.saturday...south winds 10 to 15 kt becoming southeast 5 to
10 kt. waves 1 to 2 ft. 
.saturday night...southeast winds 10 to 15 kt becoming south.
waves 1 to 2 ft. 
.sunday...south winds 5 to 10 kt. waves 1 to 2 ft. 
.sunday night...south winds less than 10 kt becoming southwest.
waves nearly calm. 
.monday...north winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 to 2 ft building to 2 to 4 ft. 
.tuesday...east winds 10 to 15 kt. waves 3 to 5 ft subsiding to
1 to 3 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 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. 

$$

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;;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;;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;;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. 

$$