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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt fri oct 16 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 30.2 inches affects the lake through 
this wednesday. one embedded high pressure center wobbles 
northeastward from the central great plains to near newfoundland 
through sunday night. another embedded and reinforcing high pressure 
center should move from near manitoba to near the canadian maritimes 
this monday through wednesday.


loz063>065-170900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt fri oct 16 2026

.overnight...north winds to 30 knots. a chance of showers.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.saturday...north winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. a chance of rain showers in the
morning. waves 5 to 8 feet subsiding to 1 to 3 feet. waves
occasionally around 10 feet. 
.saturday night...northwest winds 5 to 10 knots becoming
southwest. waves 2 feet or less. 
.sunday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.sunday night...southwest winds 10 to 15 knots becoming south.
waves 1 to 3 feet. 
.monday...south winds 10 to 15 knots becoming north less than
10 knots. waves 2 feet or less. 
.tuesday...northeast winds 5 to 15 knots. waves 2 feet or less. 
.wednesday...northeast winds 5 to 15 knots becoming southeast.
waves 1 to 3 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1003 pm edt fri oct 16 2026


slz022-024-170900-
saint lawrence river from cape vincent to saint regis
1003 pm edt fri oct 16 2026

.overnight...northwest winds 15 to 20 knots. mostly cloudy.
.saturday...northwest winds 5 to 15 knots. sunny.
.saturday night...west winds less than 10 knots becoming south.
mainly clear in the evening, then becoming partly cloudy. 
.sunday...south winds 10 knots or less becoming southwest 10 to
15 knots. sunny.
.sunday night...southwest winds 5 to 10 knots becoming south.
mainly clear. 
.monday...southwest winds 5 to 10 knots becoming light and
variable. mainly clear. 
.tuesday...light and variable winds becoming northeast 5 to
10 knots. mainly clear. 
.wednesday...northeast winds 5 to 10 knots becoming light and
variable. mainly clear. 

$$