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


slz022-024-060400-
saint lawrence river from cape vincent to saint regis
403 pm est thu nov 5 2026

.tonight...southwest winds 10 knots or less becoming south.
partly cloudy early, then becoming 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
402 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.


loz062-060400-
lake america open waters from the niagara river to hamlin beach-
402 pm est thu nov 5 2026

.tonight...southwest winds 15 to 20 knots becoming south 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 2 feet. 
.friday...southwest winds 10 knots or less becoming northwest. a
chance of waterspouts in the morning. a chance of waterspouts
late. a chance of showers in the morning. a chance of showers
late. waves 1 foot or less. 
.friday night...east winds 5 to 15 knots becoming west. a chance
of waterspouts. showers likely. waves 1 to 3 feet. 
.saturday...west winds 10 to 15 knots becoming northwest. a
chance of waterspouts. showers. waves 2 to 3 feet. 
.saturday night...northwest winds 15 to 20 knots becoming west. a
chance of waterspouts in the evening. showers in the evening.
waves 2 to 4 feet. 
.sunday...west winds 15 to 25 knots. a chance of showers sunday
night. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.monday...northwest winds 15 to 25 knots becoming southwest.
waves 4 to 7 feet subsiding to 3 to 6 feet. waves occasionally
around 9 feet. 
.tuesday...west winds 15 to 25 knots. waves 4 to 7 feet subsiding
to 2 to 4 feet. waves occasionally around 9 feet. 

$$

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open lake forecast for lake america
national weather service buffalo ny
402 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>065-060400-
lake america open waters from hamlin beach to the saint lawrence
river-
402 pm est thu nov 5 2026

.tonight...west 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. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
401 pm est thu nov 5 2026

for waters beyond five nautical miles of shore on lake erie

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... 
pressure will slowly drop to 29.70 inches tonight with a cold front 
passage. a trough averaging 29.90 inches will linger through 
saturday, followed by a ridge averaging 30.00 inches sunday. another 
cold front moves through sunday night. 


lez061-168-169-060315-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
401 pm est thu nov 5 2026

.tonight...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers late this evening. a slight chance
of showers after midnight, then showers likely late. waves 3 to
6 feet subsiding to 2 to 4 feet. 
.friday...southwest winds 10 to 15 knots becoming west. showers
in the morning, then a chance of showers early in the afternoon.
showers likely late. waves 2 to 4 feet. 
.friday night...west winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers. waves 2 to 4 feet building to 3 to
5 feet. 
.saturday...west winds 15 to 20 knots becoming northwest. showers
likely. waves 3 to 6 feet. 
.saturday night...northwest winds 15 to 20 knots becoming west.
waves 3 to 5 feet subsiding to 2 to 4 feet. 
.sunday...west winds 15 to 25 knots. waves 3 to 6 feet building
to 5 to 8 feet. waves occasionally around 10 feet. 
.monday...northwest winds 15 to 25 knots becoming southwest.
waves 3 to 5 feet building to 4 to 7 feet. waves occasionally
around 9 feet. 
.tuesday...southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. waves 4 to 7 feet subsiding to
2 to 3 feet. waves occasionally around 9 feet. 

$$