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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 am est fri nov 13 2026


slz022-024-131600-
saint lawrence river from cape vincent to saint regis
402 am est fri nov 13 2026

.today...north winds 5 to 10 knots becoming northwest. mostly
cloudy. 
.tonight...northwest winds less than 10 knots. a chance of rain
and snow showers in the evening. a chance of rain and snow
showers late. 
.saturday...northwest winds 5 to 10 knots. rain and snow showers
in the morning, then rain showers in the afternoon. 
.saturday night...northwest winds 5 to 10 knots. rain showers
likely with a chance of snow showers in the evening. 
.sunday...northwest winds 10 knots or less. mostly cloudy. 
.monday...west winds less than 10 knots becoming southwest.
becoming mainly clear. 
.tuesday...southwest winds 5 to 10 knots. mainly clear. 

$$

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open lake forecast for lake america
national weather service buffalo ny
356 am est fri nov 13 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 trough averaging 29.9 inches lingers over the lake 
through saturday night as the parent coastal low of 29.3 inches 
wobbles northeastward from near nantucket to near newfoundland. on 
sunday through this tuesday, a ridge averaging 30.4 inches should 
affect the lake as the embedded high pressure center moves from the 
upper mississippi river valley toward central pennsylvania.


loz062-131615-
lake america open waters from the niagara river to hamlin beach-
356 am est fri nov 13 2026

.today...north winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers early. waves 3 to 5 feet subsiding
to 2 to 4 feet. 
.tonight...northwest winds 10 to 15 knots. a chance of showers
late in the evening. a chance of showers late. waves 2 to 3 feet.
.saturday...northwest winds 10 to 15 knots increasing to 15 to
20 knots. showers likely. waves 2 to 3 feet. 
.saturday night...northwest winds 15 to 20 knots becoming north.
a chance of showers. waves 2 to 4 feet. 
.sunday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 
.monday...northwest winds 10 to 15 knots becoming west. waves
1 to 2 feet. 
.tuesday...west winds 10 to 15 knots. waves 1 to 3 feet. 

$$

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open lake forecast for lake america
national weather service buffalo ny
356 am est fri nov 13 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 trough averaging 29.9 inches lingers over the lake 
through saturday night as the parent coastal low of 29.3 inches 
wobbles northeastward from near nantucket to near newfoundland. on 
sunday through this tuesday, a ridge averaging 30.4 inches should 
affect the lake as the embedded high pressure center moves from the 
upper mississippi river valley toward central pennsylvania.


loz063>065-131615-
lake america open waters from hamlin beach to the saint lawrence
river-
356 am est fri nov 13 2026

.today...north winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of rain showers. waves 4 to 7 feet subsiding
to 2 to 4 feet. waves occasionally around 9 feet. 
.tonight...north winds 10 to 15 knots becoming northwest. a
chance of rain showers after midnight. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.saturday...northwest winds 15 to 20 knots. showers. waves 2 to
4 feet. 
.saturday night...northwest winds 15 to 20 knots becoming north.
showers likely in the evening, then a chance of showers
overnight. waves 2 to 4 feet building to 3 to 5 feet. 
.sunday...north winds 15 to 20 knots becoming northwest 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 10 to 15 knots becoming west. waves
2 feet or less. 
.tuesday...west winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet, then subsiding to 1 to 3 feet. 

$$