(1/6)
Latest Great Lakes Marine Forecast by KCLE
Issued 9/12/2026 10:18 AM America/New_York.
Valid through 9/12/2026 4:15 PM America/New_York.
fzus61 kcle 121418
glfle
expires:202609122015;;328467
open lake forecast for lake erie
national weather service cleveland oh
1018 am edt sat sep 12 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...
a warm front will lift across the region today before a cold
front follows across the area on sunday. high pressure 30.30 will
move over the lake on monday and exit east on tuesday. a cold
front will approach the lake on tuesday night and settle south of
the lake for wednesday.
lez162-163-122015-
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-
1018 am edt sat sep 12 2026
.rest of today...south winds around 10 knots. a chance of showers
late this morning, then a slight chance of showers early this
afternoon. a slight chance of showers and thunderstorms late.
waves 1 foot or less.
.tonight...south winds 10 to 15 knots becoming west. a slight
chance of showers and thunderstorms early. waves 1 to 2 feet.
.sunday...west winds 5 to 15 knots becoming northwest. waves
2 feet or less.
.sunday night...northwest winds 15 to 20 knots becoming north.
waves 1 to 3 feet building to 2 to 4 feet.
.monday...north winds 15 to 20 knots becoming southeast. waves
2 to 4 feet subsiding to 1 to 3 feet.
.tuesday...south winds 15 to 20 knots becoming southwest 5 to
15 knots. showers likely tuesday night. waves 1 to 3 feet
subsiding to 1 foot or less.
.wednesday...south winds 5 to 15 knots becoming southwest. a
chance of showers and thunderstorms during the day, then showers
likely with a chance of thunderstorms wednesday night. waves
2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(2/6)
Latest Great Lakes Marine Forecast by KCLE
Issued 9/12/2026 10:18 AM America/New_York.
Valid through 9/12/2026 4:15 PM America/New_York.
fzus61 kcle 121418
glfle
expires:202609122015;;328468
open lake forecast for lake erie
national weather service cleveland oh
1018 am edt sat sep 12 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...
a warm front will lift across the region today before a cold
front follows across the area on sunday. high pressure 30.30 will
move over the lake on monday and exit east on tuesday. a cold
front will approach the lake on tuesday night and settle south of
the lake for wednesday.
lez164>167-122015-
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-
1018 am edt sat sep 12 2026
.rest of today...south winds 5 to 10 knots becoming southwest. a
chance of showers late this morning, then a chance of showers
with a slight chance of thunderstorms this afternoon. waves 1 to
2 feet.
.tonight...southwest winds 10 to 15 knots. a slight chance of
showers and thunderstorms early. waves 1 to 3 feet building to
2 to 4 feet.
.sunday...west winds 5 to 15 knots. waves 1 to 3 feet.
.sunday night...northwest winds 15 to 25 knots becoming north.
waves 1 to 3 feet building to 3 to 6 feet.
.monday...north winds 15 to 20 knots becoming southeast. waves
3 to 5 feet subsiding to 1 to 3 feet.
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. showers likely tuesday night. waves 2 to 4 feet
subsiding to 1 to 3 feet.
.wednesday...southwest winds 5 to 15 knots. a chance of showers
during the day, then showers likely with a chance of
thunderstorms wednesday night. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(3/6)
Latest Great Lakes Marine Forecast by KDTX
Issued 9/12/2026 9:56 AM America/New_York.
Valid through 9/12/2026 6:00 PM America/New_York.
fzus63 kdtx 121356
glfsc
expires:202609122200;;327382
lake st clair forecast
national weather service detroit/pontiac mi
956 am edt sat sep 12 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, 30.00 inches, will slowly move eastward
towards the east coast today. low pressure, 29.30 inches, lifting
over northern ontario then drags a cold front across the central
great lakes late saturday into sunday.
lcz460-122200-
lake st clair-
956 am edt sat sep 12 2026
.rest of today...south winds 10 to 15 knots. mostly cloudy. waves 2
feet or less.
.tonight...southwest winds 10 to 15 knots becoming west 5 to 10
knots after midnight. partly cloudy. waves 2 feet or less.
.sunday...north winds 5 to 10 knots becoming northwest 10 to 15
knots early in the afternoon. partly sunny. waves 2 feet or less.
.sunday night...northwest winds 20 to 25 knots becoming north 15 to
20 knots after midnight. mostly cloudy becoming partly cloudy by
midnight becoming clear. waves 2 to 4 feet subsiding to 1 to 3 feet
after midnight.
.monday...north winds 10 to 15 knots becoming northeast 5 to 10
knots in the afternoon...then becoming east 10 to 15 knots in the
evening. sunny becoming mostly sunny in the afternoon becoming
partly cloudy. waves 2 feet or less.
.tuesday...southwest winds 15 to 20 knots. partly cloudy. showers
likely. waves 1 to 3 feet.
.wednesday...northeast winds 5 to 10 knots. mostly cloudy with
showers likely. waves 2 feet or less.
$$
(4/6)
Latest Great Lakes Marine Forecast by KDTX
Issued 9/12/2026 9:55 AM America/New_York.
Valid through 9/12/2026 6:00 PM America/New_York.
fzus63 kdtx 121355
glflh
expires:202609122200;;327370
open lake forecast for lake huron
national weather service detroit/pontiac mi
955 am edt sat sep 12 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, 30.00 inches, will slowly move eastward
towards the east coast today. low pressure, 29.30 inches, lifting
over northern ontario then drags a cold front across the central
great lakes late saturday into sunday.
lhz462>464-122200-
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-
955 am edt sat sep 12 2026
.rest of today...south winds 10 to 15 knots. a slight chance of
showers. waves 1 to 3 feet.
.tonight...south winds 5 to 10 knots becoming southwest 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet.
.sunday...north winds 5 to 10 knots becoming west 10 to 15 knots
early in the afternoon. a chance of showers in the afternoon.
waves 1 to 3 feet.
.sunday night...northwest winds 15 to 20 knots. a chance of
showers in the evening. waves 4 to 6 feet.
.monday...northwest winds 10 to 15 knots becoming light and
variable...then becoming south 15 to 20 knots with gusts to
around 30 knots late in the evening. a chance of showers late in
the evening. waves 3 to 5 feet subsiding to 1 to 3 feet late in
the afternoon...then building to 3 to 5 feet late in the evening.
waves occasionally around 8 feet.
.tuesday...south winds 20 to 25 knots with gusts to 35 knot gales
decreasing to 10 to 15 knots early in the evening...then becoming
southwest 5 to 10 knots by midnight. a chance of showers early in
the morning...then showers likely in the late morning and early
afternoon. a chance of showers . waves 5 to 7 feet subsiding to
1 to 3 feet by midnight. waves occasionally around 10 feet.
.wednesday...northwest winds 5 to 10 knots veering to the
northeast. a chance of showers. rain showers likely by midnight.
waves 2 feet or less.
$$
(5/6)
Latest Great Lakes Marine Forecast by KMKX
Issued 9/12/2026 7:48 AM US/Central.
Valid through 9/12/2026 4:15 PM US/Central.
fzus63 kmkx 121248
glflm
expires:202609122115;;325257
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
748 am cdt sat sep 12 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...
southerly winds will continue to increase this morning as a cold
front approaches the region, with winds shifting to westerly as
the cold front moves across the lake this afternoon. expecting
wind gusts to remain primarily in the 25 to 30 knot range over the
open waters, though a few gusts approaching gale force may occur
in far northern portions of the lake. isolated showers and
thunderstorms are possible ahead of the approaching cold front.
high pressure around 30.2 inches will build in from the
northern great plains sunday night into monday. expect decreasing
winds saturday night through sunday, and winds gradually shifting
to the southeast and increasing sunday night into monday. winds
will increase and veer south-southwest monday night into tuesday
as low pressure around 29.4 inches develops over manitoba. gales
appear likely during this time frame. periods of showers and
thunderstorms will accompany the developing low from as early as
monday evening into tuesday. winds will trend northerly and weaken
behind a cold front tuesday night into wednesday.
lmz261-362-364-366-563-565-567-868-122115-
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-
748 am cdt sat sep 12 2026
sheboygan wi to pentwater mi north...
.rest of today...south winds to 30 kt becoming west. slight
chance of showers this morning, then chance of showers this
afternoon. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft.
.tonight...northwest winds 10 to 20 kt becoming north 15 to
25 kt, then becoming northwest 10 to 20 kt late. waves 3 to 5 ft.
.sunday...northwest winds 10 to 20 kt increasing to 30 kt. waves
3 to 5 ft.
.sunday night...northwest winds to 30 kt becoming north 10 to
15 kt overnight. waves 3 to 5 ft subsiding to 1 to 3 ft.
.monday...northeast winds 10 to 15 kt veering to south to 30 kt
in the afternoon. waves 1 to 2 ft building to 4 to 6 ft
occasionally to 8 ft.
.monday night...south gales to 35 kt. showers. waves 8 to 11 ft
occasionally to 14 ft building to 12 to 16 ft occasionally to 21
ft.
.tuesday...southwest gales to 35 kt becoming west gales to 35 kt.
chance of showers. waves 12 to 16 ft occasionally to 21 ft
subsiding to 7 to 10 ft occasionally to 13 ft.
.wednesday...northeast winds 10 to 15 kt. chance of showers.
waves 1 to 3 ft.
$$
(6/6)
Latest Great Lakes Marine Forecast by KMKX
Issued 9/12/2026 7:48 AM US/Central.
Valid through 9/12/2026 4:15 PM US/Central.
fzus63 kmkx 121248
glflm
expires:202609122115;;325258
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
748 am cdt sat sep 12 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...
southerly winds will continue to increase this morning as a cold
front approaches the region, with winds shifting to westerly as
the cold front moves across the lake this afternoon. expecting
wind gusts to remain primarily in the 25 to 30 knot range over the
open waters, though a few gusts approaching gale force may occur
in far northern portions of the lake. isolated showers and
thunderstorms are possible ahead of the approaching cold front.
high pressure around 30.2 inches will build in from the
northern great plains sunday night into monday. expect decreasing
winds saturday night through sunday, and winds gradually shifting
to the southeast and increasing sunday night into monday. winds
will increase and veer south-southwest monday night into tuesday
as low pressure around 29.4 inches develops over manitoba. gales
appear likely during this time frame. periods of showers and
thunderstorms will accompany the developing low from as early as
monday evening into tuesday. winds will trend northerly and weaken
behind a cold front tuesday night into wednesday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-122115-
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-
748 am cdt sat sep 12 2026
sheboygan wi to pentwater mi south...
.rest of today...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft.
.tonight...northwest winds 10 to 20 kt becoming north. waves 4 to
6 ft occasionally to 8 ft.
.sunday...north winds 10 to 20 kt becoming northwest 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft.
.sunday night...north winds 15 to 25 kt becoming northeast 10 to
15 kt overnight. waves 4 to 6 ft occasionally to 8 ft subsiding
to 2 to 4 ft.
.monday...east winds 10 to 20 kt becoming southeast to 30 kt in
the afternoon. waves 2 to 4 ft building to 4 to 6 ft occasionally
to 8 ft.
.monday night...southeast gales to 35 kt becoming south. chance
of showers and thunderstorms. waves 8 to 11 ft occasionally to 14
ft building to 12 to 16 ft occasionally to 21 ft.
.tuesday...southwest gales to 35 kt becoming west to 30 kt.
showers likely. waves 12 to 16 ft occasionally to 21 ft subsiding
to 7 to 10 ft occasionally to 13 ft.
.wednesday...northeast winds 10 to 15 kt. showers likely with a
chance of thunderstorms. waves 1 to 3 ft.
$$
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