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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri oct 23 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 30.5 inches affects the lake through 
sunday night as the embedded high pressure center drifts generally 
southward from central quebec toward the mid-atlantic states. the 
ridge then exits southeastward as a weak cold front sweeps 
southeastward across the lake on monday. behind the front, another 
ridge averaging 30.5 inches should build from central canada and 
vicinity through this tuesday.


loz062-232100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri oct 23 2026

.this afternoon...east winds 10 to 15 knots. waves 2 to 3 feet. 
.tonight...east winds 5 to 15 knots becoming southeast. waves
1 to 3 feet. 
.saturday...southeast winds 10 knots or less becoming east. waves
1 foot or less. 
.saturday night...east winds 10 knots or less becoming south.
waves 1 foot or less. 
.sunday...southwest winds 5 to 15 knots. waves 2 feet or less. 
.monday...west winds 5 to 15 knots becoming northeast. waves
2 feet or less building to 2 to 3 feet. 
.tuesday...northeast winds 5 to 15 knots becoming east. waves
1 to 3 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri oct 23 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 30.5 inches affects the lake through 
sunday night as the embedded high pressure center drifts generally 
southward from central quebec toward the mid-atlantic states. the 
ridge then exits southeastward as a weak cold front sweeps 
southeastward across the lake on monday. behind the front, another 
ridge averaging 30.5 inches should build from central canada and 
vicinity through this tuesday.


loz063>065-232100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri oct 23 2026

.this afternoon...northeast winds 5 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.tonight...northeast winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.saturday...south winds less than 10 knots becoming east. waves
1 foot or less. 
.saturday night...east winds 10 knots or less becoming south.
waves 1 foot or less. 
.sunday...south winds 5 to 15 knots becoming southwest. waves
2 feet or less. 
.monday...west winds 5 to 10 knots becoming northeast and
increasing to 15 to 20 knots. waves 2 feet or less building to
2 to 4 feet. 
.tuesday...northeast winds 15 to 20 knots becoming east 5 to
15 knots. waves 2 to 4 feet subsiding to 1 foot or less. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1003 am edt fri oct 23 2026


slz022-024-232100-
saint lawrence river from cape vincent to saint regis
1003 am edt fri oct 23 2026

.this afternoon...northeast winds 10 knots or less. sunny.
.tonight...northeast winds less than 10 knots. mostly cloudy in
the evening, then becoming partly cloudy. 
.saturday...light and variable winds. sunny.
.saturday night...light and variable winds. mainly clear. 
.sunday...south winds 5 to 10 knots becoming southwest. mainly
clear, then becoming partly cloudy. 
.monday...southwest winds 10 knots or less becoming north. partly
to mostly cloudy. 
.tuesday...north winds 5 to 10 knots becoming light and variable.
becoming mainly clear. 

$$