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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1012 pm edt wed apr 8 2026


slz022-024-090900-
saint lawrence river from cape vincent to saint regis
1012 pm edt wed apr 8 2026

.overnight...southeast winds 5 to 15 knots becoming south.
mainly clear. 
.thursday...south winds 15 to 20 knots. a chance of rain showers
late. 
.thursday night...south winds 15 to 20 knots becoming southwest
5 to 15 knots. a chance of showers. 
.friday...southwest winds less than 10 knots becoming northwest.
rain showers. 
.friday night...northwest winds less than 10 knots. rain showers
in the evening. 
.saturday...northwest winds 5 to 10 knots becoming light and
variable. becoming mainly clear. 
.sunday...south winds 10 knots or less increasing to 10 to
15 knots. rain showers likely sunday night. 
.monday...southwest winds 10 to 15 knots. showers likely. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1010 pm edt wed apr 8 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 30.6 inch high will move off the coast of new england 
tonight and southeast of nova scotia thursday. a 29.5 inch low will 
move from the north shore of lake superior tonight to northern 
quebec by thursday night, with a trailing cold front crossing the 
lake thursday night and friday. a 30.5 inch high is then forecast to 
build into the central great lakes saturday, then drift east to new 
england by sunday. the cold front from a 29.4 inch low near james 
bay will track across the lake monday into tuesday.


loz062-090900-
lake ontario open waters from the niagara river to hamlin beach-
1010 pm edt wed apr 8 2026

.overnight...southeast winds 10 to 15 knots becoming south
15 to 20 knots. waves 2 to 3 feet. 
.thursday...south winds 15 to 25 knots becoming southwest. a
chance of showers late. waves 2 to 4 feet building to 3 to
6 feet. 
.thursday night...southwest winds 15 to 20 knots becoming
northwest 5 to 15 knots. a chance of rain showers. waves 3 to
6 feet subsiding to 1 to 3 feet. 
.friday...north winds less than 10 knots. rain showers. waves
1 foot or less. 
.friday night...northwest winds 10 knots or less. rain showers
likely in the evening. waves 1 foot or less. 
.saturday...northwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.sunday...east winds 5 to 15 knots becoming southwest 15 to
20 knots. a chance of rain showers sunday night. waves 2 feet or
less building to 2 to 4 feet. 
.monday...southwest winds 15 to 25 knots increasing to 30 knots.
a chance of showers. waves 3 to 6 feet building to 4 to 7 feet.
waves occasionally around 9 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1010 pm edt wed apr 8 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 30.6 inch high will move off the coast of new england 
tonight and southeast of nova scotia thursday. a 29.5 inch low will 
move from the north shore of lake superior tonight to northern 
quebec by thursday night, with a trailing cold front crossing the 
lake thursday night and friday. a 30.5 inch high is then forecast to 
build into the central great lakes saturday, then drift east to new 
england by sunday. the cold front from a 29.4 inch low near james 
bay will track across the lake monday into tuesday.


loz063>065-090900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1010 pm edt wed apr 8 2026

.overnight...southeast winds 15 to 25 knots becoming south.
waves 1 to 3 feet building to 3 to 5 feet. 
.thursday...south winds 15 to 25 knots. a chance of rain showers
late. waves 3 to 6 feet. 
.thursday night...south winds 15 to 25 knots becoming southwest
and diminishing to 5 to 10 knots overnight. a chance of rain
showers in the evening. waves 3 to 6 feet subsiding to 1 to
3 feet. 
.friday...west winds 10 knots or less becoming north. rain
showers. waves 2 feet or less. 
.friday night...northwest winds 10 knots or less. rain showers in
the evening, then a chance of rain showers overnight. waves
2 feet or less. 
.saturday...northwest winds 10 knots or less becoming south.
waves 2 feet or less. 
.sunday...southeast winds 5 to 10 knots becoming south and
increasing to 15 to 25 knots. a chance of rain showers sunday
night. waves 1 foot or less building to 3 to 6 feet. 
.monday...south winds 15 to 25 knots becoming southwest. a chance
of showers. waves 3 to 6 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
952 pm edt wed apr 8 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 moves away from lake erie tonight and 
a frontal boundary will enter late tomorrow. this front will 
stall in the vicinity of the lake thursday evening. it will push 
across as a cold front on friday. high pressure 30.50 inches will 
build over the great lakes on saturday.


lez061-167>169-090815-
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-
952 pm edt wed apr 8 2026

.overnight...southeast winds 10 to 15 knots becoming south
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of showers with a slight chance of
thunderstorms late. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.thursday night...southwest winds 5 to 15 knots becoming east
less than 10 knots. a chance of rain showers. waves 1 to 3 feet. 
.friday...east winds 5 to 10 knots becoming northwest. rain
showers. waves around 1 foot. 
.friday night...northwest winds 10 knots or less becoming north.
rain showers in the evening. waves 1 foot or less. 
.saturday...north winds 10 knots or less becoming east. waves
1 foot or less. 
.sunday...southeast winds 5 to 10 knots becoming south and
increasing to 15 to 20 knots. waves 2 feet or less building to
3 to 5 feet. 
.monday...southwest winds 15 to 25 knots. a chance of showers.
waves 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$