fzus61 kbuf 251401
glflo 
expires:202610252100;;162784

open lake forecast for lake ontario
national weather service buffalo ny
1001 am edt sun oct 25 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 
tonight as the embedded high pressure center moves from near lake 
champlain 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 affects the lake through this thursday as the embedded high 
pressure center wobbles southeastward from near manitoba to north 
atlantic waters southeast of the canadian maritimes.


loz063>065-252100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1001 am edt sun oct 25 2026

.this afternoon...south winds 5 to 15 knots. waves 2 feet or less.
.tonight...south winds 5 to 15 knots becoming southwest. waves
2 feet or less. 
.monday...west winds 10 to 15 knots becoming northwest. waves
1 to 3 feet. 
.monday night...northwest winds 10 to 15 knots becoming northeast
15 to 20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday...northeast winds 15 to 20 knots becoming east and
diminishing to 5 to 10 knots. waves 2 to 4 feet subsiding to
1 foot or less. 
.wednesday...southeast winds 5 to 10 knots becoming south and
increasing to 15 to 20 knots. waves 2 feet or less building to
2 to 4 feet. 
.thursday...south winds 15 to 20 knots becoming west 5 to
15 knots. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 

$$

fzus61 kbuf 251401
glflo 
expires:202610252100;;162783

open lake forecast for lake ontario
national weather service buffalo ny
1001 am edt sun oct 25 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 
tonight as the embedded high pressure center moves from near lake 
champlain 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 affects the lake through this thursday as the embedded high 
pressure center wobbles southeastward from near manitoba to north 
atlantic waters southeast of the canadian maritimes.


loz062-252100-
lake ontario open waters from the niagara river to hamlin beach-
1001 am edt sun oct 25 2026

.this afternoon...southwest winds 10 knots or less. waves 1 foot
or less. 
.tonight...south winds 5 to 15 knots becoming southwest. waves
2 feet or less. 
.monday...west winds 5 to 15 knots becoming northwest. waves 1 to
3 feet. 
.monday night...northwest winds 15 to 20 knots becoming northeast
10 to 15 knots. waves 1 to 3 feet. 
.tuesday...northeast winds 5 to 15 knots becoming east. waves
1 to 3 feet. 
.wednesday...east winds 5 to 15 knots becoming south. waves 1 to
2 feet. 
.thursday...southwest winds 15 to 20 knots becoming west 5 to
15 knots. a chance of showers. waves 1 to 3 feet. 

$$

fzus61 kcle 251335
glfle 
expires:202610252015;;162238

open lake forecast for lake erie
national weather service cleveland oh
935 am edt sun oct 25 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 along the east coast will slide
southwest today through the central appalachians and into the
tennessee valley by monday. this will allow for a weak cold front
to cross the lake monday afternoon. high pressure 30.50 inches 
will return across the great lakes tuesday then set up along the 
east coast for the rest of the week.


lez061-167>169-252015-
ripley to buffalo ny extending from 5nm 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-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
935 am edt sun oct 25 2026

.this afternoon...south winds 10 knots or less becoming southwest.
waves 2 feet or less. 
.tonight...southwest winds 10 knots or less increasing to 10 to
15 knots. waves 2 feet or less. 
.monday...southwest winds 5 to 15 knots becoming northwest. waves
1 to 2 feet. 
.monday night...northwest winds 10 to 15 knots becoming
northeast. waves 1 to 3 feet. 
.tuesday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 
.wednesday...southeast winds 5 to 15 knots becoming south. waves
2 feet or less. 
.thursday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 251335
glfle 
expires:202610252015;;162237

open lake forecast for lake erie
national weather service cleveland oh
935 am edt sun oct 25 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 along the east coast will slide
southwest today through the central appalachians and into the
tennessee valley by monday. this will allow for a weak cold front
to cross the lake monday afternoon. high pressure 30.50 inches 
will return across the great lakes tuesday then set up along the 
east coast for the rest of the week.


lez162>166-252015-
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-
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-
935 am edt sun oct 25 2026

.this afternoon...south winds 10 knots or less. waves 1 foot or
less. 
.tonight...southeast winds 10 knots or less becoming southwest.
waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots becoming north. waves
2 feet or less. 
.monday night...north winds 10 to 15 knots becoming northeast.
waves 1 to 3 feet. 
.tuesday...east winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.wednesday...southeast winds 10 knots or less becoming southwest
10 to 15 knots. waves 1 to 3 feet. 
.thursday...southwest winds 15 to 20 knots becoming west and
diminishing to 5 to 10 knots. waves 1 to 3 feet. 

$$

fzus63 kdtx 251333
glfsc 
expires:202610252145;;162224

lake st clair forecast
national weather service detroit/pontiac mi
933 am edt sun oct 25 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...a cold front slowly drops southeast across the region
through tonight. ahead of the front, southwest winds increase
slightly with north winds filling in behind the front late sunday
into monday. following the passage of the cold front, a transient
area of high pressure, averaging 30.6 inches, drops southeast
across eastern canada and the new england area through mid-week,
while an area of low pressure lifts north across northern plains
and up into the canadian prairies.


lcz460-252145-
lake st clair-
933 am edt sun oct 25 2026

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

$$

fzus63 kdtx 251333
glflh 
expires:202610252145;;162220

open lake forecast for lake huron
national weather service detroit/pontiac mi
933 am edt sun oct 25 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...a cold front slowly drops southeast across the region
through tonight. ahead of the front, southwest winds increase
slightly with north winds filling in behind the front late sunday
into monday. following the passage of the cold front, a transient
area of high pressure, averaging 30.6 inches, drops southeast
across eastern canada and the new england area through mid-week,
while an area of low pressure lifts north across northern plains
and up into the canadian prairies.


lhz361-252145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
933 am edt sun oct 25 2026

.rest of today...south winds 5 to 10 knots veering to the west
late in the afternoon. waves 2 feet or less. 
.tonight...northwest winds 5 to 10 knots. waves 2 feet or less. 
.monday...north winds 5 to 10 knots. waves 2 feet or less. 
.monday night...north winds 5 to 10 knots increasing to 10 to
15 knots by midnight...then veering to the east after midnight.
waves 2 feet or less. 
.tuesday...east winds 10 to 15 knots veering to the southeast
late in the evening. waves 1 to 3 feet building to 2 to 4 feet
late in the afternoon. 
.wednesday...south winds 10 to 15 knots. a chance of. waves 2 to
4 feet. 
.thursday...southwest winds 10 to 15 knots becoming northwest
5 to 10 knots . a chance of rain early in the morning. waves 1 to
3 feet. 


$$

fzus63 kdtx 251333
glflh 
expires:202610252145;;162221

open lake forecast for lake huron
national weather service detroit/pontiac mi
933 am edt sun oct 25 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...a cold front slowly drops southeast across the region
through tonight. ahead of the front, southwest winds increase
slightly with north winds filling in behind the front late sunday
into monday. following the passage of the cold front, a transient
area of high pressure, averaging 30.6 inches, drops southeast
across eastern canada and the new england area through mid-week,
while an area of low pressure lifts north across northern plains
and up into the canadian prairies.


lhz362-363-252145-
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-
933 am edt sun oct 25 2026

.rest of today...south winds 10 to 15 knots. waves 2 to 4 feet. 
.tonight...south winds 10 to 15 knots becoming southwest 5 to
10 knots late in the evening...then becoming west 10 to 15 knots
after midnight veering to the northwest early in the morning.
waves 1 to 3 feet. 
.monday...north winds 10 to 15 knots. waves 1 to 3 feet. 
.monday night...north winds 10 to 15 knots veering to the
northeast after midnight. waves 1 to 3 feet. 
.tuesday...east winds 10 to 15 knots decreasing to 5 to 10 knots
late in the afternoon...then becoming southeast 10 to 15 knots
late in the evening. waves 1 to 3 feet. 
.wednesday...south winds 10 to 15 knots increasing to 15 to
20 knots. waves 3 to 5 feet. 
.thursday...southwest winds 10 to 15 knots becoming west 5 to
10 knots early in the evening...then veering to the northwest by
midnight. a chance of rain until afternoon. waves 3 to 5 feet
subsiding to 1 to 3 feet . 


$$

fzus63 kdtx 251333
glflh 
expires:202610252145;;162222

open lake forecast for lake huron
national weather service detroit/pontiac mi
933 am edt sun oct 25 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...a cold front slowly drops southeast across the region
through tonight. ahead of the front, southwest winds increase
slightly with north winds filling in behind the front late sunday
into monday. following the passage of the cold front, a transient
area of high pressure, averaging 30.6 inches, drops southeast
across eastern canada and the new england area through mid-week,
while an area of low pressure lifts north across northern plains
and up into the canadian prairies.


lhz462>464-252145-
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-
933 am edt sun oct 25 2026

.rest of today...south winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. waves 2 feet or less. 
.tonight...south winds 5 to 10 knots increasing to 10 to 15 knots
late in the evening...then becoming southwest 5 to 10 knots after
midnight. waves 1 to 3 feet. 
.monday...north winds 10 to 15 knots. waves 1 to 3 feet. 
.monday night...north winds 10 to 15 knots veering to the
northeast after midnight. waves 2 to 4 feet. 
.tuesday...east winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then becoming southeast 10 to 15 knots late
in the evening. waves 1 to 3 feet. 
.wednesday...southeast winds 10 to 15 knots. waves 2 to 4 feet. 
.thursday...southwest winds 10 to 15 knots becoming west 5 to
10 knots . a chance of rain. waves 2 to 4 feet subsiding to 1 to
3 feet. 


$$

fzus63 kmkx 251402
glflm 
expires:202610252130;;162815

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt sun oct 25 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...

low pressure around 29.2 inches will move across hudson bay today,
while high pressure around 30.6 inches will move from alberta to 
the northern great lakes by monday night. this will result in a 
slow moving cold front from north to south across lake michigan 
this afternoon through tonight. thus modest southwest winds today
will become north to northeasterly with the frontal passage.  
breezy northeast winds will continue through monday then southeasterly
for tuesday. modest to breezy southerly winds will then prevail
for the middle of the week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-252130-
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-
902 am cdt sun oct 25 2026

sheboygan wi to pentwater mi south...

.rest of today...south winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft. 
.tonight...south winds 10 to 15 kt veering to north 10 to 20 kt.
waves 1 to 3 ft building to 3 to 5 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 becoming east 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft. 
.tuesday...southeast winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.tuesday night...southeast winds 10 to 20 kt becoming south.
waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft. 
.thursday...southwest winds 10 to 20 kt becoming west. chance of
showers. waves 3 to 5 ft.  

$$

fzus63 kmkx 251402
glflm 
expires:202610252130;;162814

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt sun oct 25 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...

low pressure around 29.2 inches will move across hudson bay today,
while high pressure around 30.6 inches will move from alberta to 
the northern great lakes by monday night. this will result in a 
slow moving cold front from north to south across lake michigan 
this afternoon through tonight. thus modest southwest winds today
will become north to northeasterly with the frontal passage.  
breezy northeast winds will continue through monday then southeasterly
for tuesday. modest to breezy southerly winds will then prevail
for the middle of the week.


lmz261-362-364-366-563-565-567-868-252130-
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-
902 am cdt sun oct 25 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 15 to 25 kt veering to northwest
10 to 20 kt. slight chance of showers through mid morning, then
chance of showers this afternoon. waves 3 to 5 ft subsiding to
2 to 4 ft. 
.tonight...north winds 10 to 15 kt increasing to 10 to 20 kt.
slight chance of rain showers in the evening. waves 2 to 4 ft. 
.monday...north winds 10 to 20 kt. waves 4 to 6 ft occasionally
to 8 ft. 
.monday night...northeast winds 10 to 20 kt becoming east. waves
4 to 6 ft occasionally to 8 ft. 
.tuesday...southeast winds 10 to 20 kt. waves 3 to 5 ft. 
.tuesday night...southeast winds 15 to 25 kt becoming south.
waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...south winds to 30 kt. waves 4 to 7 ft occasionally
to 9 ft. 
.thursday...west winds 10 to 20 kt. chance of showers. waves 2 to
4 ft subsiding to 1 to 3 ft.  

$$

fzus63 kmqt 251401
glfls 
expires:202610252000;;162720

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun oct 25 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...

high pressure builds to 30.6 inches over the canadian prairies 
today, pushing ridging of 30.4 inches over lake superior this 
evening. high pressure becomes centered over northern ontario at 
30.5 inches on monday, shifting to the saint lawrence seaway on 
tuesday. a 29.7 inch low tracks from the northern plains tuesday 
night to the james bay at 29.6 inches by thursday morning, dragging 
a 29.9 inch trough across lake superior on wednesday. high pressure 
of 30.2 to 30.3 inches returns to the upper great lakes late 
thursday into friday.




lsz162-252000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt sun oct 25 2026 /900 am cdt sun oct 25 2026/

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

$$

fzus63 kmqt 251401
glfls 
expires:202610252000;;162721

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun oct 25 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...

high pressure builds to 30.6 inches over the canadian prairies 
today, pushing ridging of 30.4 inches over lake superior this 
evening. high pressure becomes centered over northern ontario at 
30.5 inches on monday, shifting to the saint lawrence seaway on 
tuesday. a 29.7 inch low tracks from the northern plains tuesday 
night to the james bay at 29.6 inches by thursday morning, dragging 
a 29.9 inch trough across lake superior on wednesday. high pressure 
of 30.2 to 30.3 inches returns to the upper great lakes late 
thursday into friday.




lsz263-252000-
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 sun oct 25 2026

.rest of today...west winds 10 to 20 knots. waves calm to 2 feet
building to 2 to 4 feet. 
.tonight...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 in the
afternoon. waves subsiding to calm to 2 feet. 
.monday night...east winds 5 to 15 knots. a slight chance of rain
showers after midnight. waves building to 1 to 3 feet. 
.tuesday...southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a chance of rain showers through early
afternoon, then rain showers likely by mid afternoon. waves
building to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...southeast winds 15 to 25 knots becoming south
10 to 20 knots after midnight. a chance of showers. waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
2 to 4 feet. 
.wednesday...southwest winds 20 to 30 knots veering west. a
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. 
.thursday...west winds 15 to 25 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202610252000;;162722

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun oct 25 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...

high pressure builds to 30.6 inches over the canadian prairies 
today, pushing ridging of 30.4 inches over lake superior this 
evening. high pressure becomes centered over northern ontario at 
30.5 inches on monday, shifting to the saint lawrence seaway on 
tuesday. a 29.7 inch low tracks from the northern plains tuesday 
night to the james bay at 29.6 inches by thursday morning, dragging 
a 29.9 inch trough across lake superior on wednesday. high pressure 
of 30.2 to 30.3 inches returns to the upper great lakes late 
thursday into friday.




lsz264-252000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt sun oct 25 2026

.rest of today...west winds 10 to 20 knots. waves 1 to 3 feet
building to 2 to 4 feet. 
.tonight...northwest winds 10 to 20 knots veering north after
midnight, then diminishing to 5 to 15 knots late. waves subsiding
to 1 to 3 feet, then building to 2 to 4 feet. 
.monday...north winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.monday night...northeast winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots increasing to 20 to
30 knots by mid afternoon. a chance of rain showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. a chance of showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...south winds 15 to 25 knots becoming west 20 to
30 knots. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 15 to 25 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202610252000;;162723

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun oct 25 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...

high pressure builds to 30.6 inches over the canadian prairies 
today, pushing ridging of 30.4 inches over lake superior this 
evening. high pressure becomes centered over northern ontario at 
30.5 inches on monday, shifting to the saint lawrence seaway on 
tuesday. a 29.7 inch low tracks from the northern plains tuesday 
night to the james bay at 29.6 inches by thursday morning, dragging 
a 29.9 inch trough across lake superior on wednesday. high pressure 
of 30.2 to 30.3 inches returns to the upper great lakes late 
thursday into friday.




lsz265-252000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt sun oct 25 2026

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

$$

fzus63 kmqt 251401
glfls 
expires:202610252000;;162724

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun oct 25 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...

high pressure builds to 30.6 inches over the canadian prairies 
today, pushing ridging of 30.4 inches over lake superior this 
evening. high pressure becomes centered over northern ontario at 
30.5 inches on monday, shifting to the saint lawrence seaway on 
tuesday. a 29.7 inch low tracks from the northern plains tuesday 
night to the james bay at 29.6 inches by thursday morning, dragging 
a 29.9 inch trough across lake superior on wednesday. high pressure 
of 30.2 to 30.3 inches returns to the upper great lakes late 
thursday into friday.




lsz266-252000-
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 sun oct 25 2026

.rest of today...west winds 10 to 20 knots. a slight chance of
showers by late morning. waves 1 to 3 feet building to 2 to
4 feet. 
.tonight...northwest winds 10 to 20 knots becoming north 15 to
25 knots after midnight. waves 2 to 4 feet. 
.monday...north winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.monday night...northeast winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots increasing to 20 to
30 knots by mid afternoon. a slight chance of rain showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...southeast winds 20 to 30 knots becoming south
gales to 35 knots after midnight. a chance of showers. waves
building to 4 to 7 feet occasionally to 9 feet. 
.wednesday...south gales to 35 knots becoming west 20 to
30 knots. a chance of showers. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202610252000;;162725

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun oct 25 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...

high pressure builds to 30.6 inches over the canadian prairies 
today, pushing ridging of 30.4 inches over lake superior this 
evening. high pressure becomes centered over northern ontario at 
30.5 inches on monday, shifting to the saint lawrence seaway on 
tuesday. a 29.7 inch low tracks from the northern plains tuesday 
night to the james bay at 29.6 inches by thursday morning, dragging 
a 29.9 inch trough across lake superior on wednesday. high pressure 
of 30.2 to 30.3 inches returns to the upper great lakes late 
thursday into friday.




lsz267-252000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt sun oct 25 2026

.rest of today...west winds 10 to 20 knots. a chance of showers
by late morning. waves 1 to 3 feet subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.tonight...northwest winds 10 to 20 knots becoming north 15 to
25 knots after midnight. waves building to 2 to 4 feet. 
.monday...north winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.monday night...north winds 10 to 20 knots veering east after
midnight. waves calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 2 to 4 feet. 
.tuesday night...southeast winds 20 to 30 knots veering south
after midnight. waves building to 3 to 6 feet occasionally to
8 feet. 
.wednesday...south winds 20 to 30 knots veering southwest. a
chance of showers. waves subsiding to 2 to 4 feet, then building
to 3 to 5 feet occasionally to 7 feet. 
.thursday...west winds 15 to 25 knots becoming northwest 5 to
15 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to calm to 2 feet. 

$$