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(1/11)
Latest Great Lakes Marine Forecast by KBUF
Issued 7/11/2026 10:02 AM America/New_York.
Valid through 7/11/2026 5:00 PM America/New_York.
fzus61 kbuf 111402
glflo
expires:202607112100;;793339
open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sat jul 11 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 large 30.2 inch high will build south across the lower
great lakes through this weekend, before sliding east into new
england monday, then off the coast by tuesday. this will allow a
warm front to sweep northeastward across the lake tuesday, followed
by a cold front pushing south across the lake on wednesday.
loz062-112100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt sat jul 11 2026
.this afternoon...northeast winds 5 to 10 knots becoming east.
waves around 1 foot.
.tonight...east winds 10 knots or less becoming northeast. waves
1 foot or less.
.sunday...northeast winds less than 10 knots becoming east. waves
1 foot or less.
.sunday night...southeast winds less than 10 knots. waves 1 foot
or less.
.monday...southwest winds 5 to 15 knots. waves 1 to 3 feet.
.tuesday...southwest winds 15 to 20 knots becoming west. waves
2 to 4 feet building to 3 to 5 feet.
.wednesday...west winds 5 to 15 knots becoming northwest. waves
2 to 4 feet subsiding to 1 to 3 feet.
$$
(2/11)
Latest Great Lakes Marine Forecast by KBUF
Issued 7/11/2026 10:02 AM America/New_York.
Valid through 7/11/2026 5:00 PM America/New_York.
fzus61 kbuf 111402
glflo
expires:202607112100;;793340
open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sat jul 11 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a large 30.2 inch high will build south across the lower
great lakes through this weekend, before sliding east into new
england monday, then off the coast by tuesday. this will allow a
warm front to sweep northeastward across the lake tuesday, followed
by a cold front pushing south across the lake on wednesday.
loz063>065-112100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt sat jul 11 2026
.this afternoon...northeast winds 10 to 15 knots. waves 2 feet or
less.
.tonight...northeast winds 5 to 15 knots diminishing to less than
10 knots. waves 2 feet or less.
.sunday...east winds 10 knots or less becoming north. waves
1 foot or less.
.sunday night...northwest winds less than 10 knots becoming
southwest. waves 1 foot or less.
.monday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet.
.tuesday...southwest winds 15 to 25 knots becoming west. waves
3 to 6 feet building to 4 to 7 feet. waves occasionally around
9 feet.
.wednesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet.
$$
(3/11)
Latest Great Lakes Marine Forecast by KCLE
Issued 7/11/2026 9:32 AM America/New_York.
Valid through 7/11/2026 4:15 PM America/New_York.
fzus61 kcle 111332
glfle
expires:202607112015;;792494
open lake forecast for lake erie
national weather service cleveland oh
932 am edt sat jul 11 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...
low pressure of 29.90 inches will move east across the ohio
valley today. high pressure of 30.10 inches will build over the
central great lakes on sunday then settle south to the ohio valley
through the first half of next week.
lez162-163-112015-
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-
932 am edt sat jul 11 2026
.this afternoon...northeast winds 10 to 15 knots becoming east.
waves 1 to 3 feet.
.tonight...east winds 10 to 15 knots becoming northeast. waves
1 to 3 feet.
.sunday...east winds 10 to 15 knots. waves 1 to 3 feet.
.sunday night...east winds 5 to 15 knots becoming northeast.
waves 1 to 3 feet.
.monday...northeast winds 10 knots or less becoming southwest.
waves 1 foot or less.
.tuesday...southwest winds 5 to 10 knots becoming west. waves
2 feet or less.
.wednesday...west winds 5 to 10 knots becoming northwest. waves
2 feet or less.
$$
(4/11)
Latest Great Lakes Marine Forecast by KCLE
Issued 7/11/2026 9:32 AM America/New_York.
Valid through 7/11/2026 4:15 PM America/New_York.
fzus61 kcle 111332
glfle
expires:202607112015;;792495
open lake forecast for lake erie
national weather service cleveland oh
932 am edt sat jul 11 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
low pressure of 29.90 inches will move east across the ohio
valley today. high pressure of 30.10 inches will build over the
central great lakes on sunday then settle south to the ohio valley
through the first half of next week.
lez164>167-112015-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
932 am edt sat jul 11 2026
.this afternoon...northeast winds 10 to 15 knots increasing to
15 to 20 knots. waves 1 to 2 feet building to 2 to 4 feet.
.tonight...northeast winds 15 to 20 knots becoming east 10 to
15 knots. waves 1 to 3 feet.
.sunday...east winds 10 to 15 knots becoming northeast 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet.
.sunday night...northeast winds 5 to 15 knots becoming east less
than 10 knots. waves 1 to 3 feet.
.monday...southeast winds 10 knots or less becoming southwest.
waves 1 foot or less.
.tuesday...southwest winds 5 to 15 knots becoming west. waves
1 to 3 feet.
.wednesday...west winds 5 to 15 knots becoming northwest. waves
1 to 3 feet.
$$
(5/11)
Latest Great Lakes Marine Forecast by KCLE
Issued 7/11/2026 9:32 AM America/New_York.
Valid through 7/11/2026 4:15 PM America/New_York.
fzus61 kcle 111332
glfle
expires:202607112015;;792496
open lake forecast for lake erie
national weather service cleveland oh
932 am edt sat jul 11 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...
low pressure of 29.90 inches will move east across the ohio
valley today. high pressure of 30.10 inches will build over the
central great lakes on sunday then settle south to the ohio valley
through the first half of next week.
lez061-168-169-112015-
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-
932 am edt sat jul 11 2026
.this afternoon...northeast winds 10 to 15 knots. waves 1 to
3 feet.
.tonight...northeast winds 5 to 15 knots becoming east. waves
1 to 3 feet.
.sunday...east winds 10 to 15 knots becoming northeast. waves
1 to 3 feet.
.sunday night...northeast winds 5 to 15 knots becoming southeast
less than 10 knots. waves 2 feet or less.
.monday...south winds 10 knots or less becoming southwest. waves
1 foot or less.
.tuesday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet building to 2 to 4 feet.
.wednesday...west winds 5 to 15 knots becoming northwest. waves
1 to 3 feet.
$$
(6/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/11/2026 3:37 PM America/New_York.
Valid through 7/11/2026 11:45 PM America/New_York.
fzus63 kdtx 111937
glflh
expires:202607120345;;807774
open lake forecast for lake huron
national weather service detroit/pontiac mi
337 pm edt sat jul 11 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...broad area of high pressure will continue to influence
the quiet weather over the great lakes region through the
weekend. the high pressure system will strengthen slightly to
30.20 inches saturday into sunday, bringing benign marine
conditions.
lhz462>464-120345-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
337 pm edt sat jul 11 2026
.tonight...north winds 10 to 15 knots becoming northeast 5 to
10 knots in the late evening and overnight. waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight.
.sunday...light and variable winds. waves 2 feet or less.
.sunday night...light and variable winds becoming south 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.monday...southwest winds 5 to 10 knots. waves 2 feet or less.
.monday night...south winds 5 to 10 knots becoming southwest
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet.
.tuesday...southwest winds 10 to 15 knots veering to the
northwest late in the evening. waves 1 to 3 feet.
.wednesday...northwest winds 5 to 10 knots. waves 1 to 3 feet.
.thursday...northwest winds 5 to 10 knots backing to the
southwest early in the evening...then veering to the southwest
5 to 10 knots by midnight. waves 2 feet or less.
$$
(7/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/11/2026 3:37 PM America/New_York.
Valid through 7/11/2026 11:45 PM America/New_York.
fzus63 kdtx 111937
glflh
expires:202607120345;;807772
open lake forecast for lake huron
national weather service detroit/pontiac mi
337 pm edt sat jul 11 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...broad area of high pressure will continue to influence
the quiet weather over the great lakes region through the
weekend. the high pressure system will strengthen slightly to
30.20 inches saturday into sunday, bringing benign marine
conditions.
lhz361-120345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
337 pm edt sat jul 11 2026
.tonight...light and variable winds becoming south 5 to 10 knots
in the late evening and overnight. waves 2 feet or less.
.sunday...south winds 5 to 10 knots early in the morning becoming
light and variable...then becoming south 5 to 10 knots early in
the afternoon backing to the southeast. waves 2 feet or less.
.sunday night...east winds 5 to 10 knots veering to the south in
the late evening and overnight. waves 1 to 3 feet.
.monday...southwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet.
.monday night...southwest winds 5 to 10 knots becoming west 10 to
15 knots after midnight. waves 1 to 3 feet building to 2 to
4 feet after midnight.
.tuesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots late in the evening. waves 2 to 4 feet.
.wednesday...northwest winds 5 to 10 knots becoming west 10 to
15 knots early in the evening...then becoming north 5 to 10 knots
by midnight. waves 1 to 3 feet building to 2 to 4 feet .
.thursday...west winds 5 to 10 knots increasing to 10 to 15 knots
early in the evening...then becoming northwest 5 to 10 knots by
midnight. waves 1 to 3 feet.
$$
(8/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/11/2026 3:37 PM America/New_York.
Valid through 7/11/2026 11:45 PM America/New_York.
fzus63 kdtx 111937
glflh
expires:202607120345;;807773
open lake forecast for lake huron
national weather service detroit/pontiac mi
337 pm edt sat jul 11 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...broad area of high pressure will continue to influence
the quiet weather over the great lakes region through the
weekend. the high pressure system will strengthen slightly to
30.20 inches saturday into sunday, bringing benign marine
conditions.
lhz362-363-120345-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
337 pm edt sat jul 11 2026
.tonight...light and variable winds. waves 2 feet or less.
.sunday...light and variable winds becoming southeast 5 to
10 knots late in the afternoon. waves 2 feet or less.
.sunday night...south winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet.
.monday...southwest winds 5 to 10 knots backing to the south
early in the afternoon. waves 1 to 3 feet.
.monday night...southeast winds 5 to 10 knots veering to the
south by midnight...then becoming southwest 10 to 15 knots after
midnight. waves 1 to 3 feet.
.tuesday...southwest winds 10 to 15 knots veering to the
northwest late in the evening. waves 3 to 5 feet.
.wednesday...northwest winds 5 to 10 knots. waves 1 to 3 feet
building to 2 to 4 feet .
.thursday...northwest winds 5 to 10 knots backing to the south
early in the evening...then backing to the northeast by midnight.
waves 1 to 3 feet.
$$
(9/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/11/2026 3:37 PM America/New_York.
Valid through 7/11/2026 11:45 PM America/New_York.
fzus63 kdtx 111937
glfsc
expires:202607120345;;807771
lake st clair forecast
national weather service detroit/pontiac mi
337 pm edt sat jul 11 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...broad area of high pressure will continue to influence
the quiet weather over the great lakes region through the
weekend. the high pressure system will strengthen slightly to
30.20 inches saturday into sunday, bringing benign marine
conditions.
lcz460-120345-
lake st clair-
337 pm edt sat jul 11 2026
.tonight...northeast winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. clear. waves 2 feet or less.
.sunday...east winds 5 to 10 knots veering to the southeast late in
the afternoon. sunny. waves 2 feet or less.
.sunday night...east winds 5 to 10 knots becoming light and
variable. clear. waves 2 feet or less.
.monday...light and variable winds becoming southeast 5 to 10 knots
early in the afternoon. sunny. waves 2 feet or less.
.monday night...south winds 5 to 10 knots veering to the southwest
after midnight. clear. waves 2 feet or less.
.tuesday...southwest winds 5 to 10 knots increasing to 10 to 15
knots in the afternoon and evening. clear. waves 2 feet or less.
.wednesday...northeast winds 10 to 15 knots. clear. waves 2 feet or
less.
.thursday...southwest winds 5 to 10 knots. mostly clear. waves 2
feet or less.
$$
(10/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 7/11/2026 1:59 PM US/Central.
Valid through 7/11/2026 10:15 PM US/Central.
fzus63 kmkx 111859
glflm
expires:202607120315;;806153
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
159 pm cdt sat jul 11 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 of 30.1 inches over the great lakes today will
strengthen to 30.2 inches by sunday morning. the high will largely
stay put through the first half of next week, eventually
weakening and shifting southward by late in the week ahead of an
approaching trough of low pressure. northerly winds generally
under 15 knots through today will become southerly across the
north sunday, while becoming light and variable in the south.
winds will become southerly across the lake monday, increasing a
bit by tuesday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-120315-
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-
159 pm cdt sat jul 11 2026
sheboygan wi to pentwater mi south...
.tonight...north winds 10 to 20 kt veering to east 10 to 15 kt.
waves 1 to 3 ft.
.sunday...east winds 5 to 10 kt backing to northwest. waves 1 to
2 ft.
.sunday night...west winds 10 to 15 kt becoming southwest. waves
1 to 2 ft.
.monday...southwest winds 10 to 15 kt. waves 1 to 2 ft.
.monday night...southwest winds 10 to 15 kt. waves 1 to 2 ft.
.tuesday...west winds 10 to 15 kt becoming southwest 10 to 20 kt.
waves 1 to 2 ft.
.tuesday night...southwest winds 10 to 20 kt becoming west. waves
1 to 3 ft.
.wednesday...west winds 10 to 20 kt. waves 1 to 3 ft.
.thursday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.
$$
(11/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 7/11/2026 1:59 PM US/Central.
Valid through 7/11/2026 10:15 PM US/Central.
fzus63 kmkx 111859
glflm
expires:202607120315;;806152
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
159 pm cdt sat jul 11 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 of 30.1 inches over the great lakes today will
strengthen to 30.2 inches by sunday morning. the high will largely
stay put through the first half of next week, eventually
weakening and shifting southward by late in the week ahead of an
approaching trough of low pressure. northerly winds generally
under 15 knots through today will become southerly across the
north sunday, while becoming light and variable in the south.
winds will become southerly across the lake monday, increasing a
bit by tuesday.
lmz261-362-364-366-563-565-567-868-120315-
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-
159 pm cdt sat jul 11 2026
sheboygan wi to pentwater mi north...
.tonight...northeast winds 10 to 15 kt veering to south. waves
1 to 2 ft.
.sunday...south winds 10 to 15 kt becoming southwest 10 to 20 kt.
waves 2 to 4 ft.
.sunday night...southwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 2 to 4 ft.
.monday...southwest winds 10 to 20 kt. waves 2 to 4 ft.
.monday night...southwest winds 10 to 20 kt. waves 2 to 4 ft.
.tuesday...west winds 15 to 25 kt becoming southwest to 30 kt.
waves 2 to 4 ft.
.tuesday night...southwest winds to 30 kt becoming west 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft.
.wednesday...northwest winds 10 to 15 kt becoming north 15 to
25 kt. waves 1 to 3 ft.
.thursday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.
$$
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