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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1003 pm est thu nov 5 2026


slz022-024-061000-
saint lawrence river from cape vincent to saint regis
1003 pm est thu nov 5 2026

.overnight...southwest winds 10 knots or less becoming
south. mostly cloudy. 
.friday...south winds less than 10 knots. a chance of showers
from late morning on. 
.friday night...light and variable winds becoming northeast 10 to
15 knots. showers likely in the evening, then a chance of showers
overnight. 
.saturday...northeast winds 5 to 10 knots. showers likely. 
.saturday night...north winds 10 knots or less becoming
northwest. rain showers likely in the evening, then a chance of
rain showers overnight. 
.sunday...west winds 5 to 15 knots. a chance of rain showers. 
.monday...west winds 5 to 15 knots becoming southwest. mostly
cloudy. 
.tuesday...southwest winds 5 to 15 knots becoming west. a chance
of rain showers. 

$$

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open lake forecast for lake america
national weather service buffalo ny
1002 pm est thu nov 5 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 29.8 inches should impact the eastern 
great lakes during most of the remainder of this week through 
upcoming tuesday. however, a narrow high pressure ridge averaging 
30.0 inches should move eastward across the eastern great lakes 
saturday night. another ridge averaging 30.0 inches should move 
eastward across the eastern great lakes later monday through monday 
night.


loz063>065-061000-
lake america open waters from hamlin beach to the saint lawrence
river-
1002 pm est thu nov 5 2026

.overnight...southwest winds 5 to 15 knots becoming south.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...south winds 10 knots or less becoming north. a chance
of waterspouts from late morning on. a chance of showers from
late morning on. waves 2 feet or less. 
.friday night...northeast winds 10 knots or less becoming
northwest and increasing to 15 to 20 knots overnight. a chance of
waterspouts. showers. waves 2 feet or less building to 2 to
4 feet. 
.saturday...northwest winds 15 to 20 knots. a chance of
waterspouts. showers. waves 3 to 5 feet subsiding to 2 to 4 feet.
.saturday night...north winds 15 to 20 knots becoming northwest.
a chance of waterspouts. showers. waves 2 to 4 feet building to
3 to 5 feet. 
.sunday...west winds 15 to 25 knots becoming northwest to
30 knots. a chance of waterspouts during the day. a chance of
showers. waves 3 to 6 feet building to 5 to 9 feet. waves
occasionally around 11 feet. 
.monday...northwest winds 15 to 25 knots becoming southwest. a
chance of showers during the day. waves 6 to 9 feet subsiding to
3 to 6 feet. waves occasionally around 11 feet. 
.tuesday...southwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. waves 5 to 9 feet subsiding to
3 to 6 feet. waves occasionally around 11 feet. 

$$