fzus61 kbuf 250802
glflo 
expires:202609251500;;021314

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri sep 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...an expansive 30.3 inch high will remain centered across 
southern quebec through saturday before drifting to eastern quebec 
and labrador sunday. meanwhile, an elongated 29.6 inch low well 
offshore of the mid atlantic coast today is forecast to strengthen 
to 29.3 inches as it moves to just off the southern new england 
coast saturday night. this low will gradually fill to 29.6 inches by 
monday as it meanders near the new england coastline, finally 
exiting into the canadian maritimes by wednesday.


loz063>065-251500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt fri sep 25 2026

.today...northeast winds 10 to 15 knots becoming north. waves
1 to 3 feet. 
.tonight...north winds 10 to 15 knots becoming northeast 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday...northeast winds 15 to 20 knots becoming north. waves
2 to 4 feet. 
.saturday night...northeast winds 15 to 25 knots. waves 2 to
4 feet building to 3 to 6 feet. 
.sunday...northeast winds 15 to 25 knots. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.monday...northeast winds 5 to 15 knots becoming north. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...north winds 10 knots or less becoming south. waves
1 foot or less. 

$$

fzus61 kbuf 250802
glflo 
expires:202609251500;;021313

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri sep 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...an expansive 30.3 inch high will remain centered across 
southern quebec through saturday before drifting to eastern quebec 
and labrador sunday. meanwhile, an elongated 29.6 inch low well 
offshore of the mid atlantic coast today is forecast to strengthen 
to 29.3 inches as it moves to just off the southern new england 
coast saturday night. this low will gradually fill to 29.6 inches by 
monday as it meanders near the new england coastline, finally 
exiting into the canadian maritimes by wednesday.


loz062-251500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt fri sep 25 2026

.today...northeast winds 5 to 15 knots becoming northwest less
than 10 knots. waves 1 to 2 feet. 
.tonight...northwest winds less than 10 knots becoming northeast
10 to 15 knots. waves 2 feet or less building to 2 to 3 feet. 
.saturday...northeast winds 5 to 15 knots becoming north less
than 10 knots. waves 1 to 3 feet. 
.saturday night...north winds 10 to 15 knots becoming northeast
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...northeast winds 15 to 20 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.monday...northeast winds 10 to 15 knots becoming light and
variable. waves 1 to 3 feet subsiding to 1 foot or less. 
.tuesday...light and variable winds becoming southwest 5 to
10 knots. waves 1 foot or less. 

$$

fzus61 kcle 250745
glfle 
expires:202609251415;;020839

open lake forecast for lake erie
national weather service cleveland oh
345 am edt fri sep 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 30.40 inches will maintain influence over lake erie
through monday before weakening to 30.10 inches as it drifts east
late monday into tuesday.


lez162-163-251415-
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-
345 am edt fri sep 25 2026

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

$$

fzus61 kcle 250745
glfle 
expires:202609251415;;020841

open lake forecast for lake erie
national weather service cleveland oh
345 am edt fri sep 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 30.40 inches will maintain influence over lake erie
through monday before weakening to 30.10 inches as it drifts east
late monday into tuesday.


lez061-168-169-251415-
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-
345 am edt fri sep 25 2026

.today...east winds 5 to 15 knots becoming northeast 15 to
20 knots. waves 1 to 3 feet. 
.tonight...northeast winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.saturday...northeast winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.saturday night...northeast winds 15 to 20 knots diminishing to
10 to 15 knots. waves 1 to 2 feet. 
.sunday...northeast winds 10 to 15 knots. waves 1 to 3 feet. 
.monday...northeast winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.tuesday...southwest winds 10 knots or less becoming south. waves
2 feet or less. 

$$

fzus61 kcle 250745
glfle 
expires:202609251415;;020840

open lake forecast for lake erie
national weather service cleveland oh
345 am edt fri sep 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 30.40 inches will maintain influence over lake erie
through monday before weakening to 30.10 inches as it drifts east
late monday into tuesday.


lez164>167-251415-
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-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
345 am edt fri sep 25 2026

.today...east winds 5 to 15 knots becoming northeast. waves 1 to
3 feet. 
.tonight...northeast winds 10 to 15 knots. waves 1 to 3 feet. 
.saturday...northeast winds 10 to 15 knots. waves 1 to 3 feet. 
.saturday night...northeast winds 15 to 20 knots diminishing to
10 to 15 knots. waves 1 to 3 feet. 
.sunday...north winds 10 to 15 knots becoming northeast. waves
1 to 2 feet. 
.monday...north winds 10 knots or less becoming southwest. waves
2 feet or less. 
.tuesday...southwest winds 10 knots or less becoming south 10 to
15 knots. waves 1 foot or less building to 1 to 3 feet. 

$$

fzus63 kdtx 250802
glfsc 
expires:202609251615;;021278

lake st clair forecast
national weather service detroit/pontiac mi
402 am edt fri sep 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 strong high pressure system, 30.30 inches, expands 
from quebec/ontario into michigan bringing an extended period of 
light winds and dry weather that will last through early next 
week.


lcz460-251615-
lake st clair-
402 am edt fri sep 25 2026

.today...northeast winds 5 to 10 knots. partly sunny. waves 2 feet
or less.
.tonight...north winds 10 to 15 knots becoming northeast 5 to 10
knots after midnight...then increasing to 10 to 15 knots early in
the morning. mostly clear. waves 2 feet or less.
.saturday...north winds 5 to 10 knots. mostly sunny. waves 2 feet or
less.
.saturday night...north winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. mostly clear. waves 2 feet or less.
.sunday...north winds 5 to 10 knots increasing to 10 to 15 knots in
the afternoon and evening. sunny in the morning becoming mostly
clear. waves 2 feet or less.
.monday...northeast winds 10 to 15 knots. clear. waves 2 feet or
less.
.tuesday...south winds 5 to 10 knots. mostly clear. waves 2 feet or
less.

$$

fzus63 kdtx 250801
glflh 
expires:202609251615;;021245

open lake forecast for lake huron
national weather service detroit/pontiac mi
401 am edt fri sep 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 strong high pressure system, 30.30 inches, expands 
from quebec/ontario into michigan bringing an extended period of 
light winds and dry weather that will last through early next 
week.


lhz362-363-251615-
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-
401 am edt fri sep 25 2026

.today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...north winds 5 to 10 knots. waves 2 feet or
less. 
.sunday...north winds 5 to 10 knots. waves 2 feet or less. 
.monday...north winds 5 to 10 knots early in the morning becoming
light and variable. waves 2 feet or less. 
.tuesday...light and variable winds becoming southeast 5 to
10 knots early in the evening...then becoming south 10 to
15 knots by midnight. a chance of. waves 2 feet or less. 


$$

fzus63 kdtx 250801
glflh 
expires:202609251615;;021246

open lake forecast for lake huron
national weather service detroit/pontiac mi
401 am edt fri sep 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 strong high pressure system, 30.30 inches, expands 
from quebec/ontario into michigan bringing an extended period of 
light winds and dry weather that will last through early next 
week.


lhz462>464-251615-
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-
401 am edt fri sep 25 2026

.today...east winds 5 to 10 knots early in the morning becoming
light and variable...then becoming north 5 to 10 knots late in
the afternoon. waves 2 feet or less. 
.tonight...north winds 5 to 10 knots becoming northeast 10 to
15 knots by midnight...then decreasing to 5 to 10 knots early in
the morning. waves 1 to 3 feet. 
.saturday...northeast winds 5 to 10 knots becoming north 10 to
15 knots early in the afternoon. waves 1 to 3 feet. 
.saturday night...north winds 10 to 15 knots becoming northeast
5 to 10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 
.sunday...northeast winds 5 to 10 knots becoming north 10 to
15 knots late in the morning...then decreasing to 5 to 10 knots
late in the evening. waves 1 to 3 feet building to 2 to 4 feet
late in the afternoon...then subsiding to 1 to 3 feet late in the
evening. 
.monday...north winds 5 to 10 knots becoming light and variable.
waves 2 feet or less. 
.tuesday...light and variable winds becoming south 10 to
15 knots. a chance of. waves 2 feet or less. 


$$

fzus63 kdtx 250801
glflh 
expires:202609251615;;021244

open lake forecast for lake huron
national weather service detroit/pontiac mi
401 am edt fri sep 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 strong high pressure system, 30.30 inches, expands 
from quebec/ontario into michigan bringing an extended period of 
light winds and dry weather that will last through early next 
week.


lhz361-251615-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
401 am edt fri sep 25 2026

.today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 
.saturday night...light and variable winds. waves 2 feet or less.
.sunday...northeast winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.monday...light and variable winds. waves nearly calm. 
.tuesday...light and variable winds becoming southeast 5 to
10 knots . a chance of showers by midnight. waves 2 feet or less.


$$

fzus63 kmkx 250810
glflm 
expires:202609251515;;022397

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
310 am cdt fri sep 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...

high pressure around 30.4 inches will linger over southern ontario
canada and the great lakes through today and into the weekend, 
gradually weakening to 30.1 inches. light to moderate east to 
southeast winds have taken over early this morning and should
persist until the mid-afternoon when winds briefly become light
and variable. northeast winds then take over this evening, and
come around to southeasterly again by saturday morning. predominantly
dry and quiet weather expected.

high pressure will progress into the ohio valley early tuesday, 
allowing winds to turn south and increase as low pressure develops
in the central plains.


lmz080-669-671-673-675-777-779-870-872-874-876-878-251515-
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-
310 am cdt fri sep 25 2026

sheboygan wi to pentwater mi south...

.today...southeast winds 10 to 15 kt becoming northeast. waves
2 to 4 ft subsiding to 1 to 2 ft. 
.tonight...northeast winds 5 to 10 kt becoming east. waves 1 to
2 ft. 
.saturday...east winds 10 to 15 kt becoming northeast. waves 1 to
3 ft. 
.saturday night...northeast winds 5 to 10 kt becoming east. waves
1 to 2 ft. 
.sunday...east winds 5 to 10 kt becoming north. waves 1 to 2 ft. 
.sunday night...north winds 10 to 15 kt becoming northeast. waves
1 to 2 ft. 
.monday...east winds 5 to 10 kt. waves 1 ft or less. 
.tuesday...south winds 10 to 20 kt. waves 1 to 3 ft building to
3 to 5 ft.  

$$

fzus63 kmkx 250810
glflm 
expires:202609251515;;022396

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
310 am cdt fri sep 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...

high pressure around 30.4 inches will linger over southern ontario
canada and the great lakes through today and into the weekend, 
gradually weakening to 30.1 inches. light to moderate east to 
southeast winds have taken over early this morning and should
persist until the mid-afternoon when winds briefly become light
and variable. northeast winds then take over this evening, and
come around to southeasterly again by saturday morning. predominantly
dry and quiet weather expected.

high pressure will progress into the ohio valley early tuesday, 
allowing winds to turn south and increase as low pressure develops
in the central plains.


lmz261-362-364-366-563-565-567-868-251515-
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-
310 am cdt fri sep 25 2026

sheboygan wi to pentwater mi north...

.today...south winds 10 to 15 kt veering to west. waves 1 to 3 ft
subsiding to 1 to 2 ft. 
.tonight...north winds 5 to 10 kt veering to southeast. waves
1 ft or less. 
.saturday...east winds 5 to 10 kt becoming northeast. waves 1 to
2 ft. 
.saturday night...northeast winds 5 to 10 kt becoming southeast.
waves 1 ft or less. 
.sunday...southeast winds 5 to 10 kt backing to northeast. waves
nearly calm. 
.sunday night...northeast winds 5 to 10 kt. waves 1 ft or less. 
.monday...east winds 5 to 10 kt veering to south. waves nearly
calm. 
.tuesday...south winds 10 to 20 kt. waves 1 to 3 ft building to
3 to 5 ft.  

$$

fzus63 kmqt 250801
glfls 
expires:202609252000;;021227

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri sep 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...

a 30.4 inch high centered over quebec will weaken to 30.3 inches 
today over the great lakes basin as a 29.4 inch low develops over 
the northern rockies. on saturday the high begins shifting northeast 
toward northern quebec while the low deepens and moves north through 
the canadian prairies. sunday through monday, the high shifts east 
to the canadian maritimes, weakening to 30.0 inches. this gradually 
weakens ridging over lake superior from 30.1 inches sunday morning 
to 29.9 inches by late monday as a 29.8 inch trough approaches from 
the west. by tuesday evening the trough will move over lake superior 
at around 29.7 inches.




lsz162-252000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt fri sep 25 2026 /301 am cdt fri sep 25 2026/

.early this morning...south winds less than 10 knots. waves calm
to 2 feet. 
.today...southwest winds less than 10 knots veering north in the
afternoon, then becoming northeast 5 to 15 knots late. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots backing northeast after
midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots increasing to 10 to 20 knots
late. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots veering south after
midnight. a slight chance of showers after midnight. waves calm
to 2 feet. 
.sunday...south winds 5 to 15 knots veering southwest by mid
afternoon. waves calm to 2 feet. 
.sunday night...north winds less than 10 knots. waves calm to
2 feet. 
.monday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 
.tuesday...south winds 5 to 15 knots becoming west 10 to
20 knots. showers likely, then a chance of showers. waves calm to
2 feet. 

$$

fzus63 kmqt 250801
glfls 
expires:202609252000;;021228

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri sep 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...

a 30.4 inch high centered over quebec will weaken to 30.3 inches 
today over the great lakes basin as a 29.4 inch low develops over 
the northern rockies. on saturday the high begins shifting northeast 
toward northern quebec while the low deepens and moves north through 
the canadian prairies. sunday through monday, the high shifts east 
to the canadian maritimes, weakening to 30.0 inches. this gradually 
weakens ridging over lake superior from 30.1 inches sunday morning 
to 29.9 inches by late monday as a 29.8 inch trough approaches from 
the west. by tuesday evening the trough will move over lake superior 
at around 29.7 inches.




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-
401 am edt fri sep 25 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then becoming northeast 5 to 15 knots
late. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots backing east in the
afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. a slight chance of showers after midnight. waves
calm to 2 feet. 
.sunday...south winds 5 to 15 knots veering southwest by mid
afternoon. waves calm to 2 feet. 
.sunday night...southwest winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...southeast winds 5 to 15 knots veering south. waves calm
to 2 feet. 
.tuesday...south winds 10 to 20 knots becoming southwest 5 to
15 knots. showers likely. waves calm to 2 feet. 

$$

fzus63 kmqt 250801
glfls 
expires:202609252000;;021229

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri sep 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...

a 30.4 inch high centered over quebec will weaken to 30.3 inches 
today over the great lakes basin as a 29.4 inch low develops over 
the northern rockies. on saturday the high begins shifting northeast 
toward northern quebec while the low deepens and moves north through 
the canadian prairies. sunday through monday, the high shifts east 
to the canadian maritimes, weakening to 30.0 inches. this gradually 
weakens ridging over lake superior from 30.1 inches sunday morning 
to 29.9 inches by late monday as a 29.8 inch trough approaches from 
the west. by tuesday evening the trough will move over lake superior 
at around 29.7 inches.




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

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds less than 10 knots. waves calm to
2 feet. 
.tonight...southeast winds 5 to 15 knots backing east late. waves
calm to 2 feet. 
.saturday...east winds 5 to 15 knots veering southeast in the
afternoon, then backing east late. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots veering southwest by mid
afternoon. waves calm to 2 feet. 
.sunday night...southwest winds less than 10 knots. waves calm to
2 feet. 
.monday...southeast winds less than 10 knots becoming south 5 to
15 knots. waves calm to 2 feet. 
.tuesday...south winds 10 to 20 knots. a chance of showers, then
showers likely. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 250801
glfls 
expires:202609252000;;021230

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri sep 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...

a 30.4 inch high centered over quebec will weaken to 30.3 inches 
today over the great lakes basin as a 29.4 inch low develops over 
the northern rockies. on saturday the high begins shifting northeast 
toward northern quebec while the low deepens and moves north through 
the canadian prairies. sunday through monday, the high shifts east 
to the canadian maritimes, weakening to 30.0 inches. this gradually 
weakens ridging over lake superior from 30.1 inches sunday morning 
to 29.9 inches by late monday as a 29.8 inch trough approaches from 
the west. by tuesday evening the trough will move over lake superior 
at around 29.7 inches.




lsz265-252000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt fri sep 25 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 5 to 15 knots backing east late. waves
calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots backing east in the
afternoon, then increasing to 15 to 25 knots late. waves calm to
2 feet. 
.saturday night...southeast winds 10 to 20 knots becoming south
5 to 15 knots after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots becoming south 10 to 20 knots.
waves calm to 2 feet. 
.tuesday...south winds 15 to 25 knots. a chance of showers, then
showers likely. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 250801
glfls 
expires:202609252000;;021231

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri sep 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...

a 30.4 inch high centered over quebec will weaken to 30.3 inches 
today over the great lakes basin as a 29.4 inch low develops over 
the northern rockies. on saturday the high begins shifting northeast 
toward northern quebec while the low deepens and moves north through 
the canadian prairies. sunday through monday, the high shifts east 
to the canadian maritimes, weakening to 30.0 inches. this gradually 
weakens ridging over lake superior from 30.1 inches sunday morning 
to 29.9 inches by late monday as a 29.8 inch trough approaches from 
the west. by tuesday evening the trough will move over lake superior 
at around 29.7 inches.




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-
401 am edt fri sep 25 2026

.early this morning...south winds 5 to 15 knots. waves calm to
2 feet. 
.today...southwest winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then becoming northeast 5 to 15 knots
late. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering southeast after
midnight, then backing east late. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots diminishing to less than
10 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...east winds less than 10 knots becoming south 5 to
15 knots after midnight. waves calm to 2 feet. 
.monday...southeast winds 5 to 15 knots veering south. waves calm
to 2 feet. 
.tuesday...south winds 15 to 25 knots. a chance of showers, then
showers likely. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 250801
glfls 
expires:202609252000;;021232

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri sep 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...

a 30.4 inch high centered over quebec will weaken to 30.3 inches 
today over the great lakes basin as a 29.4 inch low develops over 
the northern rockies. on saturday the high begins shifting northeast 
toward northern quebec while the low deepens and moves north through 
the canadian prairies. sunday through monday, the high shifts east 
to the canadian maritimes, weakening to 30.0 inches. this gradually 
weakens ridging over lake superior from 30.1 inches sunday morning 
to 29.9 inches by late monday as a 29.8 inch trough approaches from 
the west. by tuesday evening the trough will move over lake superior 
at around 29.7 inches.




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

.early this morning...south winds 5 to 15 knots. waves calm to
2 feet. 
.today...south winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then backing northeast late. waves
calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots diminishing to less than
10 knots after midnight, then backing north late. waves calm to
2 feet. 
.saturday...east winds 5 to 15 knots backing northeast late.
waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots becoming west less than
10 knots after midnight. waves calm to 2 feet. 
.monday...northeast winds less than 10 knots becoming south 5 to
15 knots. waves calm to 2 feet. 
.tuesday...south winds 10 to 20 knots increasing to 15 to
25 knots. showers likely. waves building to 1 to 3 feet. 

$$