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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 am est wed nov 4 2026


slz022-024-041600-
saint lawrence river from cape vincent to saint regis
403 am est wed nov 4 2026

.today...south winds 10 knots or less becoming southwest. partly
to mostly sunny. 
.tonight...south winds 5 to 15 knots. a chance of showers after
midnight. showers likely late. 
.thursday...south winds 5 to 15 knots becoming southwest.
showers.
.thursday night...southwest winds 5 to 10 knots. mostly cloudy. 
.friday...southwest winds 10 knots or less becoming northeast. a
chance of showers friday night. 
.saturday...northeast winds 5 to 10 knots becoming northwest. a
chance of rain showers. 
.sunday...west winds 5 to 10 knots. a chance of rain showers
during the day. 

$$

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open lake forecast for lake america
national weather service buffalo ny
402 am est wed nov 4 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 will gradually move from the upper great 
lakes today towards ontario, before crossing quebec thursday and 
friday. following the passage of the low, a 29.9 inch trough will 
linger across the lower great lakes saturday. a secondary trough of 
29.7 inches will cross the great lakes sunday.


loz063>065-041600-
lake america open waters from hamlin beach to the saint lawrence
river-
402 am est wed nov 4 2026

.today...south winds 10 to 15 knots becoming southeast. waves
2 feet or less. 
.tonight...south winds 15 to 20 knots. a chance of showers late
in the evening. showers after midnight. waves 1 to 3 feet. 
.thursday...south winds 15 to 20 knots becoming west 10 to
15 knots. showers in the morning, then a chance of showers in the
afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday night...west winds 5 to 15 knots becoming south. waves
1 to 3 feet. 
.friday...north winds 5 to 15 knots. a chance of showers during
the day, then showers likely friday night. waves 1 to 3 feet. 
.saturday...north winds 15 to 20 knots becoming northwest.
showers likely. waves 2 to 4 feet. 
.sunday...west winds 15 to 20 knots. a chance of showers. waves
3 to 6 feet. 

$$