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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm 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 29.8 inches will slide eastward across 
the lower great lakes 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 low 
averaging 29.5 inches may move across the great lakes region friday. 
there is uncertainity in the track of this low, with the potential 
of deepening as it crosses the region. a 30.5 inch high will build 
into the great lakes region saturday through sunday.


loz062-130900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt mon oct 12 2026

.overnight...southwest winds 5 to 10 knots becoming south.
showers likely with a chance of thunderstorms late. waves 2 feet
or less. 
.tuesday...south winds 5 to 15 knots becoming southwest 15 to
20 knots. showers likely with a chance of thunderstorms. waves
2 feet or less building to 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming
northwest 10 to 15 knots. a chance of showers and thunderstorms
in the evening. waves 2 to 4 feet subsiding to 1 to 2 feet. 
.wednesday...west winds 10 to 15 knots becoming northwest. waves
1 to 2 feet. 
.wednesday night...northwest winds 15 to 20 knots becoming north
10 to 15 knots. waves 1 to 3 feet. 
.thursday...northeast winds 5 to 15 knots becoming southeast.
showers thursday night. waves 1 to 2 feet. 
.friday...southwest winds 15 to 20 knots becoming northwest and
increasing to 30 knots. showers during the day, then showers
likely friday night. waves 1 to 3 feet building to 7 to 11 feet.
waves occasionally around 14 feet. 
.saturday...northwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. waves 6 to 10 feet subsiding to
3 to 6 feet. waves occasionally around 13 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 130202
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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm 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 29.8 inches will slide eastward across 
the lower great lakes 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 low 
averaging 29.5 inches may move across the great lakes region friday. 
there is uncertainity in the track of this low, with the potential 
of deepening as it crosses the region. a 30.5 inch high will build 
into the great lakes region saturday through sunday.


loz063>065-130900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt mon oct 12 2026

.overnight...south winds 10 to 15 knots. showers likely
with a chance of thunderstorms late. waves 2 feet or less. 
.tuesday...south winds 5 to 15 knots. showers with a chance of
thunderstorms. waves 2 feet or less. 
.tuesday night...southwest winds 10 to 15 knots becoming
northwest. showers likely with a chance of thunderstorms in the
evening, then a chance of showers overnight. waves 1 to 3 feet. 
.wednesday...northwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.wednesday night...northwest winds 10 to 15 knots becoming north
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...northeast winds 15 to 20 knots becoming southeast.
showers likely thursday night. waves 1 to 3 feet. 
.friday...south winds 15 to 20 knots becoming northwest and
increasing to 35 knot gales. showers. waves 3 to 5 feet building
to 10 to 13 feet. waves occasionally around 16 feet. 
.saturday...northwest winds to 30 knots becoming west. a chance
of showers during the day. waves 8 to 12 feet subsiding to 5 to
8 feet. waves occasionally around 15 feet. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
924 pm 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...
a cold front will cross the lake late tuesday into wednesday. 
high pressure 30.20 inches will briefly build over the great lakes
thursday, followed by low pressure 29.80 inches and an 
accompanying cold front crossing the region friday. a trough 
averaging 29.90 inches will persist over the eastern basin of the 
lake as high pressure 30.40 inches builds in from the west on 
saturday.


lez061-167>169-130815-
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-
924 pm edt mon oct 12 2026

.overnight...southwest winds 15 to 20 knots. a chance of
showers with a slight chance of thunderstorms late. waves 2 to
4 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest. a
chance of showers with a slight chance of thunderstorms early,
then a slight chance of showers and thunderstorms late in the
morning. waves 3 to 6 feet. 
.tuesday night...west winds 15 to 25 knots becoming northwest and
diminishing to 5 to 15 knots. waves 3 to 6 feet subsiding to 1 to
3 feet. 
.wednesday...northwest winds 5 to 10 knots. a chance of showers.
waves 1 to 2 feet. 
.wednesday night...north winds 10 to 15 knots becoming northeast
15 to 20 knots. a chance of showers in the evening. 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
thursday night. waves 1 to 3 feet. 
.friday...west winds to 30 knots becoming northwest and
increasing to 35 knot gales. showers during the day, then a
chance of showers friday night. waves 5 to 8 feet building to
8 to 11 feet. waves occasionally around 14 feet. 
.saturday...northwest winds to 30 knots becoming west 15 to
25 knots. waves 7 to 10 feet subsiding to 2 to 4 feet. waves
occasionally around 13 feet. 

winds and waves higher in and near thunderstorms.

$$