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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1003 pm est tue nov 3 2026


slz022-024-041000-
saint lawrence river from cape vincent to saint regis
1003 pm est tue nov 3 2026

.overnight...south winds 5 to 10 knots becoming southwest.
mostly cloudy. 
.wednesday...south winds 10 knots or less. partly to mostly
sunny. 
.wednesday night...south winds 5 to 15 knots. showers overnight. 
.thursday...south winds 5 to 15 knots becoming southwest.
showers.
.thursday night...southwest winds 10 knots or less. partly to
mostly cloudy. 
.friday...west winds 10 knots or less becoming north. a chance of
showers friday night. 
.saturday...north winds 10 knots or less becoming west. a chance
of rain showers. 
.sunday...southwest winds 10 knots or less becoming west. a
chance of rain showers sunday night. 

$$

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open lake forecast for lake america
national weather service buffalo ny
1002 pm est tue nov 3 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 30.4 high just off the mid atlantic coastline will 
continue to slowly drift further offshore through this afternoon. a 
29.5 inch low is then forecast to move very slowly from the upper 
mississippi valley this afternoon to the upper great lakes by 
wednesday, and then across quebec thursday and friday.   following 
the passage of the low, a 29.9 inch trough will linger across the 
lower great lakes saturday.


loz063>065-041000-
lake america open waters from hamlin beach to the saint lawrence
river-
1002 pm est tue nov 3 2026

.overnight...south winds 10 to 15 knots. waves 1 to 3 feet.
.wednesday...south winds 5 to 15 knots becoming southeast. waves
2 feet or less. 
.wednesday night...south winds 15 to 20 knots. showers. waves
1 to 3 feet. 
.thursday...south winds 15 to 20 knots becoming west 5 to
15 knots. showers. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday night...west winds 5 to 10 knots becoming southwest.
waves 1 to 3 feet. 
.friday...southwest winds 5 to 15 knots becoming north. a chance
of showers friday night. waves 1 to 3 feet. 
.saturday...northwest winds 10 to 15 knots becoming west. a
chance of showers. waves 1 to 3 feet. 
.sunday...west winds 10 to 15 knots increasing to 15 to 20 knots.
a chance of showers sunday night. waves 2 to 4 feet building to
3 to 5 feet. 

$$