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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est fri jan 2 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 28.8 inch low will move north across the canadian 
maritimes through tonight, then to northern quebec by saturday. a 
30.3 inch high will then build from the western great lakes sunday 
to the lower great lakes by early monday, then drift off the east 
coast monday night. a weak trough of low pressure averaging 29.8 
inches will cross the great lakes tuesday through tuesday night, 
followed by a 30.1 inch high building into the ohio valley and lower 
great lakes wednesday.


loz063>065-031000-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm est fri jan 2 2026

.overnight...west winds 15 to 20 knots becoming northwest.
lake effect snow likely. waves 4 to 7 feet. waves occasionally
around 9 feet. 
.saturday...northwest winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of snow showers. waves 4 to 7 feet subsiding
to 1 to 3 feet. waves occasionally around 9 feet. 
.saturday night...northwest winds 5 to 15 knots becoming north.
snow showers. waves 1 to 3 feet. 
.sunday...north winds 10 to 15 knots becoming northwest 15 to
20 knots. snow showers likely in the morning, then a chance of
snow showers in the afternoon. waves 2 to 4 feet building to 3 to
5 feet. 
.sunday night...northwest winds 15 to 20 knots becoming northeast
and diminishing to 5 to 10 knots. waves 3 to 5 feet subsiding to
1 to 3 feet. 
.monday...southeast winds 10 to 15 knots becoming south. a chance
of snow showers. waves 1 to 3 feet. 
.tuesday...south winds 5 to 15 knots becoming southwest. a chance
of rain showers during the day, then rain showers likely tuesday
night. waves 1 to 3 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. rain showers likely during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 pm est fri jan 2 2026


slz022-024-031000-
saint lawrence river from cape vincent to saint regis
1002 pm est fri jan 2 2026

.overnight...west winds less than 10 knots becoming
northwest. cloudy.
.saturday...northwest winds 10 knots or less becoming west.
mostly cloudy. 
.saturday night...light and variable winds. snow showers likely. 
.sunday...light and variable winds. a chance of snow showers in
the morning. 
.sunday night...northwest winds less than 10 knots. mainly clear.
.monday...south winds less than 10 knots becoming east. a chance
of snow showers. 
.tuesday...east winds 10 knots or less becoming southeast. snow
showers likely tuesday night. 
.wednesday...southwest winds 10 knots or less. snow showers
likely with a chance of rain showers during the day. 

$$