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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1004 am est thu nov 12 2026


slz022-024-122200-
saint lawrence river from cape vincent to saint regis
1004 am est thu nov 12 2026

.this afternoon...northeast winds 10 to 15 knots. cloudy.
.tonight...northeast winds 10 to 15 knots becoming north. cloudy.
.friday...north winds 5 to 15 knots. cloudy.
.friday night...north winds 10 knots or less becoming northwest.
cloudy.
.saturday...northwest winds 10 knots or less. mostly cloudy. 
.sunday...northwest winds 10 knots or less. mostly cloudy. 
.monday...northwest winds less than 10 knots. partly to mostly
cloudy. 

$$

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open lake forecast for lake america
national weather service buffalo ny
1003 am est thu nov 12 2026

for waters beyond five nautical miles of shore on lake america

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 29.5 inch low over the ohio valley will give way to a 
secondary low just off the delmarva this afternoon. this 29.3 inch 
coastal low will move northeast and offshore of the new england 
coast tonight through friday night before moving into the canadian 
maritimes saturday while deepening to 29.1 inches. a 30.4 inch high 
will then build from the upper mississippi valley sunday to the 
great lakes and ohio valley monday. this high will become nearly 
stationary over the ohio valley and mid atlantic through at least 
the middle of next week.


loz062-122200-
lake america open waters from the niagara river to hamlin beach-
1003 am est thu nov 12 2026

.this afternoon...northeast winds 20 to 25 knots. a chance of
showers. waves 5 to 9 feet. waves occasionally around 11 feet. 
.tonight...northeast winds 15 to 25 knots. waves 4 to 7 feet.
waves occasionally around 9 feet. 
.friday...north winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.friday night...north winds 10 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.saturday...northwest winds 10 to 15 knots. waves 2 to 4 feet. 
.sunday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 
.monday...northwest winds 5 to 10 knots becoming west. waves
1 foot or less. 

$$

fzus61 kbuf 121503
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open lake forecast for lake america
national weather service buffalo ny
1003 am est thu nov 12 2026

for waters beyond five nautical miles of shore on lake america

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 29.5 inch low over the ohio valley will give way to a 
secondary low just off the delmarva this afternoon. this 29.3 inch 
coastal low will move northeast and offshore of the new england 
coast tonight through friday night before moving into the canadian 
maritimes saturday while deepening to 29.1 inches. a 30.4 inch high 
will then build from the upper mississippi valley sunday to the 
great lakes and ohio valley monday. this high will become nearly 
stationary over the ohio valley and mid atlantic through at least 
the middle of next week.


loz063>065-122200-
lake america open waters from hamlin beach to the saint lawrence
river-
1003 am est thu nov 12 2026

.this afternoon...northeast winds 20 to 25 knots. rain, then a
chance of showers late. waves 5 to 9 feet. waves occasionally
around 11 feet. 
.tonight...northeast winds 20 to 25 knots. a chance of rain
showers early. waves 5 to 8 feet. waves occasionally around
10 feet. 
.friday...north winds 15 to 25 knots. a chance of rain showers in
the morning. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.friday night...north 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...north winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of rain showers. waves 1 to 3 feet building to
2 to 4 feet. 
.sunday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.monday...northwest winds 5 to 10 knots becoming west. waves
2 feet or less. 

$$