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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1005 am edt tue oct 6 2026


slz022-024-062100-
saint lawrence river from cape vincent to saint regis
1005 am edt tue oct 6 2026

.this afternoon...northwest winds 5 to 10 knots becoming west.
sunny.
.tonight...southwest winds 10 knots or less becoming south 10 to
15 knots. mainly clear in the evening, then becoming mostly
cloudy. 
.wednesday...south winds 10 to 15 knots becoming southwest. a
chance of showers. 
.wednesday night...southwest winds 5 to 15 knots. showers likely.
.thursday...southwest winds 5 to 15 knots becoming west. a chance
of showers. 
.friday...west winds 10 knots or less. a chance of rain showers. 
.saturday...west winds 10 knots or less becoming south. mainly
clear, then becoming partly cloudy. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1004 am edt tue oct 6 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 30.2 inch high will build east across the mid-alantic 
region today, then slide out to sea tonight through wednesday. a 
cold front will then pass across the lake thursday. a 30.1 inch 
surface high will then ridge north across the lake friday then drift 
off the coast over the weekend. 
.


loz063>065-062100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1004 am edt tue oct 6 2026

.this afternoon...northwest winds 5 to 10 knots becoming west.
waves 1 to 3 feet. 
.tonight...west winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots becoming southwest. a
chance of showers in the afternoon. waves 3 to 5 feet. 
.wednesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. showers likely. waves 2 to 4 feet. 
.thursday...west winds 15 to 20 knots. a chance of showers. waves
2 to 4 feet building to 3 to 6 feet, then subsiding to 2 to
4 feet. 
.friday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.saturday...west winds 5 to 10 knots becoming south and
increasing to 15 to 20 knots. waves 1 to 3 feet. 

$$