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open lake forecast for lake ontario
national weather service buffalo ny
1001 pm edt thu may 8 2025

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 30.4 inch high over james bay will build across lake 
ontario through friday. the high will weaken as it slides southward 
into the lower ohio valley saturday as a 29.8 inch low moves up the 
new england coastline. a 30.5 inch high will then move across the 
great lakes region sunday through sunday night. the high will remain 
off the east coast monday.


loz063>065-090900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1001 pm edt thu may 8 2025

.overnight...northwest winds 5 to 15 knots becoming north.
waves 2 feet or less. 
.friday...north winds 10 to 15 knots becoming northwest. a chance
of showers late. waves 1 to 3 feet. 
.friday night...northwest winds 5 to 15 knots. a chance of
showers. waves 1 to 3 feet. 
.saturday...northwest winds 10 to 15 knots becoming west 15 to
20 knots. a chance of showers in the morning. waves 1 to 3 feet
building to 2 to 4 feet. 
.saturday night...west winds 15 to 20 knots becoming north 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...north winds 5 to 15 knots becoming south 10 knots or
less. waves 1 to 3 feet subsiding to 1 foot or less. 
.monday...south winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...south winds 5 to 10 knots becoming southeast. a chance
of showers tuesday night. waves 2 feet or less. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1001 pm edt thu may 8 2025


slz022-024-090900-
saint lawrence river from cape vincent to saint regis
1001 pm edt thu may 8 2025

.overnight...northeast winds 10 knots or less. mostly
cloudy. 
.friday...northeast winds 5 to 10 knots becoming north. a chance
of showers. rain late. 
.friday night...north winds 10 knots or less. rain in the
evening, then showers likely overnight. 
.saturday...northwest winds 5 to 10 knots. a chance of showers. 
.saturday night...northwest winds 5 to 10 knots becoming north. a
chance of rain showers in the evening. 
.sunday...north winds 10 knots or less becoming southwest. mainly
clear, then becoming partly cloudy. 
.monday...southwest winds 5 to 10 knots. becoming mainly clear. 
.tuesday...southwest winds 10 knots or less becoming south.
partly to mostly cloudy. 

$$