(1/9)
Latest Great Lakes Marine Forecast by KBUF
Issued 10/12/2026 10:02 AM America/New_York.
Valid through 10/12/2026 5:00 PM America/New_York.
fzus61 kbuf 121402
glflo
expires:202610122100;;972487
open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt mon oct 12 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 29.9 inches will slide eastward across
the lower great lakes today before exiting eastward tonight. a cold
front will sweep southeast across the lake on tuesday. behind the
cold front, a ridge averaging 30.2 inches builds from northern
ontario through thursday. a 29.9 inch low may move across the great
lakes region friday. this low has the potential to deepen into a
stronger low.
loz063>065-122100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt mon oct 12 2026
.this afternoon...west winds 5 to 10 knots. patchy drizzle. waves
1 foot or less.
.tonight...southwest winds 5 to 10 knots becoming south. a chance
of showers after midnight. showers likely late. waves 1 foot or
less.
.tuesday...south winds 10 to 15 knots becoming southwest. showers
likely in the morning, then showers with a chance of
thunderstorms in the afternoon. waves 2 feet or less.
.tuesday night...southwest winds 10 to 15 knots becoming
northwest. showers with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 1 to 3 feet.
.wednesday...northwest winds 5 to 15 knots becoming north. waves
1 to 3 feet.
.thursday...northeast winds 5 to 15 knots becoming southeast.
showers thursday night. waves 1 to 3 feet.
.friday...southwest winds 15 to 25 knots becoming northwest to
30 knots. showers. waves 2 to 4 feet building to 8 to 11 feet.
waves occasionally around 14 feet.
winds and waves higher in and near thunderstorms.
$$
(2/9)
Latest Great Lakes Marine Forecast by KBUF
Issued 10/12/2026 10:02 AM America/New_York.
Valid through 10/12/2026 5:00 PM America/New_York.
fzus61 kbuf 121402
glflo
expires:202610122100;;972486
open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt mon oct 12 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 29.9 inches will slide eastward across
the lower great lakes today before exiting eastward tonight. a cold
front will sweep southeast across the lake on tuesday. behind the
cold front, a ridge averaging 30.2 inches builds from northern
ontario through thursday. a 29.9 inch low may move across the great
lakes region friday. this low has the potential to deepen into a
stronger low.
loz062-122100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt mon oct 12 2026
.this afternoon...west winds 5 to 10 knots becoming southwest.
waves 1 to 2 feet.
.tonight...southwest winds 5 to 15 knots. a chance of showers and
thunderstorms late. waves 2 feet or less.
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. showers likely with a chance of thunderstorms. waves
1 to 3 feet building to 2 to 4 feet.
.tuesday night...southwest winds 15 to 20 knots becoming
northwest 10 to 15 knots. showers likely with a chance of
thunderstorms in the evening, then a chance of showers overnight.
waves 2 to 4 feet subsiding to 1 to 3 feet.
.wednesday...northwest winds 5 to 15 knots becoming north. waves
2 feet or less.
.thursday...northeast winds 10 to 15 knots becoming east. showers
thursday night. waves 1 to 3 feet.
.friday...northwest winds 15 to 20 knots increasing to 30 knots.
showers. waves 1 to 3 feet building to 7 to 10 feet. waves
occasionally around 13 feet.
winds and waves higher in and near thunderstorms.
$$
(3/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/12/2026 9:21 AM America/New_York.
Valid through 10/12/2026 4:15 PM America/New_York.
fzus61 kcle 121321
glfle
expires:202610122015;;971366
open lake forecast for lake erie
national weather service cleveland oh
921 am edt mon oct 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...
high pressure 30.00 inches builds to the south of lake erie today
and persists through tuesday. low pressure 29.70 inches moves
through the great lakes late tuesday with a cold front sweeping
across the lake early wednesday. high pressure 30.20 briefly
builds across the great lakes on thursday followed by low pressure
29.60 inches moving through on friday.
lez061-167>169-122015-
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-
921 am edt mon oct 12 2026
.this afternoon...west winds 10 to 15 knots becoming southwest.
waves 1 to 3 feet.
.tonight...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a slight chance of showers and thunderstorms after
midnight. a chance of showers with a slight chance of
thunderstorms late. waves 1 to 3 feet building to 2 to 4 feet.
.tuesday...south winds 15 to 20 knots becoming southwest. a
chance of showers in the morning. waves 3 to 6 feet.
.tuesday night...southwest winds 15 to 20 knots becoming
northwest 5 to 15 knots. a chance of showers overnight. waves
3 to 5 feet subsiding to 1 to 3 feet.
.wednesday...northwest winds 5 to 15 knots becoming northeast. a
chance of showers during the day. waves 1 to 3 feet.
.thursday...northeast winds 10 to 15 knots becoming south 15 to
20 knots. a chance of showers during the day, then showers likely
thursday night. waves 1 to 3 feet.
.friday...west winds to 30 knots becoming northwest and
increasing to 35 knot gales. showers likely during the day, then
a chance of showers friday night. waves 5 to 8 feet building to
9 to 13 feet. waves occasionally around 16 feet.
winds and waves higher in and near thunderstorms.
$$
(4/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/12/2026 9:21 AM America/New_York.
Valid through 10/12/2026 4:15 PM America/New_York.
fzus61 kcle 121321
glfle
expires:202610122015;;971364
open lake forecast for lake erie
national weather service cleveland oh
921 am edt mon oct 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...
high pressure 30.00 inches builds to the south of lake erie today
and persists through tuesday. low pressure 29.70 inches moves
through the great lakes late tuesday with a cold front sweeping
across the lake early wednesday. high pressure 30.20 briefly
builds across the great lakes on thursday followed by low pressure
29.60 inches moving through on friday.
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-
921 am edt mon oct 12 2026
.this afternoon...southwest winds around 10 knots. waves 1 foot or
less.
.tonight...south winds 10 to 15 knots. a chance of showers with a
slight chance of thunderstorms after midnight. waves 1 to 3 feet.
.tuesday...southwest winds 15 to 20 knots. waves 1 to 3 feet.
.tuesday night...west winds 5 to 15 knots. a chance of showers
overnight. waves 1 to 3 feet subsiding to 1 foot or less.
.wednesday...northwest winds 5 to 15 knots becoming northeast
15 to 20 knots. showers likely during the day. waves 1 to 3 feet.
.thursday...northeast winds 15 to 20 knots becoming southwest. a
chance of showers during the day, then showers likely thursday
night. waves 1 to 3 feet.
.friday...west winds to 30 knots becoming northwest. a chance of
showers during the day. waves 3 to 6 feet building to 4 to
7 feet. waves occasionally around 9 feet.
winds and waves higher in and near thunderstorms.
$$
(5/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/12/2026 9:21 AM America/New_York.
Valid through 10/12/2026 4:15 PM America/New_York.
fzus61 kcle 121321
glfle
expires:202610122015;;971365
open lake forecast for lake erie
national weather service cleveland oh
921 am edt mon oct 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...
high pressure 30.00 inches builds to the south of lake erie today
and persists through tuesday. low pressure 29.70 inches moves
through the great lakes late tuesday with a cold front sweeping
across the lake early wednesday. high pressure 30.20 briefly
builds across the great lakes on thursday followed by low pressure
29.60 inches moving through on friday.
lez164>166-122015-
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-
921 am edt mon oct 12 2026
.this afternoon...southwest winds 10 to 15 knots. waves 1 to
3 feet.
.tonight...south winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of showers with a slight chance of
thunderstorms after midnight. waves 1 to 2 feet building to 2 to
4 feet.
.tuesday...south winds 15 to 20 knots becoming southwest. waves
3 to 5 feet.
.tuesday night...southwest winds 15 to 20 knots becoming west and
diminishing to 5 to 10 knots. a chance of showers overnight.
waves 3 to 5 feet subsiding to 1 to 3 feet.
.wednesday...northwest winds 5 to 15 knots becoming northeast
15 to 20 knots. showers likely during the day. waves 1 foot or
less building to 2 to 4 feet.
.thursday...northeast winds 10 to 15 knots becoming southwest
15 to 20 knots. a chance of showers during the day, then showers
likely thursday night. waves 2 to 4 feet.
.friday...northwest gales to 35 knots diminishing to 30 knots. a
chance of showers. waves 5 to 8 feet building to 9 to 13 feet.
waves occasionally around 16 feet.
winds and waves higher in and near thunderstorms.
$$
(6/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/12/2026 9:58 AM America/New_York.
Valid through 10/12/2026 6:00 PM America/New_York.
fzus63 kdtx 121358
glflh
expires:202610122200;;972272
open lake forecast for lake huron
national weather service detroit/pontiac mi
958 am edt mon oct 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...low pressure, 29.60 inches, will then push from the
central plains into the great lakes tomorrow morning, bringing
the next potential for rain showers and isolated thunderstorms.
departure of this system will then facilitate the passage of a
cold front wednesday morning, bringing breezy northwest flow
across northern lake huron.
lhz363-122200-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
958 am edt mon oct 12 2026
.rest of today...southwest winds 10 to 15 knots becoming south
5 to 10 knots late in the afternoon. waves 1 to 3 feet.
.tonight...south winds 5 to 10 knots becoming southeast 10 to
15 knots in the late evening and overnight. rain likely and a
chance of thunderstorms after midnight. waves 1 to 3 feet.
.tuesday...southeast winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and afternoon. a chance of rain in
the morning. waves 1 to 3 feet building to 2 to 4 feet early in
the afternoon.
.tuesday night...north winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and overnight. waves 2 to
4 feet subsiding to 1 to 3 feet in the late evening and
overnight.
.wednesday...northwest winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon...then becoming northwest 15 to
20 knots late in the evening. waves 1 to 3 feet building to 2 to
4 feet.
.thursday...northeast winds 10 to 15 knots becoming east 5 to
10 knots until early evening...then veering to the southeast by
midnight. rain likely . waves 1 to 3 feet.
.friday...west winds 15 to 20 knots becoming northwest at 35 knot
gales with gusts to 45 knot gales. rain likely until afternoon...
then a chance of rain . waves 3 to 5 feet building to 12 to
16 feet. waves occasionally around 20 feet. a gale warning may be
needed.
$$
(7/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/12/2026 9:58 AM America/New_York.
Valid through 10/12/2026 6:00 PM America/New_York.
fzus63 kdtx 121358
glflh
expires:202610122200;;972273
open lake forecast for lake huron
national weather service detroit/pontiac mi
958 am edt mon oct 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...low pressure, 29.60 inches, will then push from the
central plains into the great lakes tomorrow morning, bringing
the next potential for rain showers and isolated thunderstorms.
departure of this system will then facilitate the passage of a
cold front wednesday morning, bringing breezy northwest flow
across northern lake huron.
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-
958 am edt mon oct 12 2026
.rest of today...southwest winds around 15 knots becoming in the
afternoon. waves 1 to 3 feet.
.tonight...south winds 10 to 15 knots decreasing to 5 to 10 knots
after midnight. rain likely and a chance of thunderstorms after
midnight. waves 1 to 3 feet.
.tuesday...southwest winds 10 to 15 knots. a chance of rain.
waves 1 to 3 feet building to 2 to 4 feet early in the afternoon.
.tuesday night...west winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and overnight. waves 2 to
4 feet subsiding to 1 to 3 feet in the late evening and
overnight.
.wednesday...northwest winds 5 to 10 knots becoming north 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet late in the
afternoon.
.thursday...northeast winds 10 to 15 knots becoming southeast
5 to 10 knots . rain likely . waves 2 to 4 feet subsiding to 1 to
3 feet.
.friday...west winds 15 to 20 knots becoming northwest at 35 knot
gales with gusts to 45 knot gales. rain likely until afternoon...
then a chance of rain . waves 3 to 5 feet building to 15 to
20 feet. waves occasionally around 25 feet. a gale warning may be
needed.
$$
(8/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/12/2026 9:58 AM America/New_York.
Valid through 10/12/2026 6:00 PM America/New_York.
fzus63 kdtx 121358
glflh
expires:202610122200;;972271
open lake forecast for lake huron
national weather service detroit/pontiac mi
958 am edt mon oct 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...low pressure, 29.60 inches, will then push from the
central plains into the great lakes tomorrow morning, bringing
the next potential for rain showers and isolated thunderstorms.
departure of this system will then facilitate the passage of a
cold front wednesday morning, bringing breezy northwest flow
across northern lake huron.
lhz361-362-122200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
958 am edt mon oct 12 2026
.rest of today...north winds 5 to 15 knots veering to the east in
the afternoon. waves 1 to 3 feet.
.tonight...east winds 10 to 15 knots increasing to 15 to 20 knots
late in the evening...then decreasing to 10 to 15 knots after
midnight. rain likely and a chance of thunderstorms after
midnight. waves 2 to 4 feet.
.tuesday...east winds 10 to 15 knots. rain likely and a chance of
thunderstorms in the morning...then a chance of rain in the
afternoon. waves 2 to 4 feet.
.tuesday night...northwest winds 5 to 10 knots. waves 1 to
3 feet.
.wednesday...northwest winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon...then becoming north 10 to
15 knots late in the evening. waves 1 to 3 feet building to 3 to
5 feet.
.thursday...northeast winds 10 to 15 knots becoming east 5 to
10 knots. a chance of rain early in the evening. rain likely by
midnight. waves 1 to 3 feet.
.friday...west winds 10 to 15 knots with gusts to around 30 knots
becoming northwest to 30 knots with gusts to 45 knot gales in the
late morning and early afternoon...then increasing to 35 knot
gales with gusts to 45 knot gales early in the evening decreasing
to 30 knots with gusts to 45 knot gales by midnight. rain likely
early in the morning...then a chance of rain until early evening.
waves 3 to 5 feet building to 10 to 14 feet. waves occasionally
around 18 feet. a gale warning may be needed.
$$
(9/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/12/2026 9:58 AM America/New_York.
Valid through 10/12/2026 6:00 PM America/New_York.
fzus63 kdtx 121358
glfsc
expires:202610122200;;972276
lake st clair forecast
national weather service detroit/pontiac mi
958 am edt mon oct 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...low pressure, 29.60 inches, will then push from the
central plains into the great lakes tomorrow morning, bringing
the next potential for showers and isolated thunderstorms.
departure of this system will then facilitate the passage of a
cold front wednesday morning, bringing breezy northwest flow
across northern lake huron.
lcz460-122200-
lake st clair-
958 am edt mon oct 12 2026
.rest of today...southwest winds around 15 knots. mostly cloudy
in the late morning and early afternoon becoming mostly sunny.
waves 2 feet or less.
.tonight...southwest winds 10 to 15 knots. mostly clear. a chance of
light rain and thunderstorms after midnight. waves 2 feet or less.
.tuesday...southwest winds 15 to 20 knots. sunny. waves 1 to 3 feet.
.tuesday night...west winds 15 to 20 knots becoming northwest 10 to
15 knots by midnight...then becoming north 5 to 10 knots after
midnight. mostly clear. a chance of light rain after midnight. waves
2 feet or less.
.wednesday...north winds 5 to 10 knots becoming northeast 10 to 15
knots in the evening. mostly cloudy with a chance of light rain.
waves 2 feet or less.
.thursday...east winds 10 to 15 knots. mostly cloudy. light rain
likely. waves 2 feet or less.
.friday...northwest at 35 knot gales with gusts to 40 knot gales.
mostly cloudy. light rain likely. waves 3 to 5 feet. waves
occasionally around 7 feet. a gale warning may be needed.
$$
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