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


slz022-024-051600-
saint lawrence river from cape vincent to saint regis
403 am est thu nov 5 2026

.today...south winds 5 to 15 knots becoming southwest. showers
this morning, then a chance of showers early this afternoon. 
.tonight...southwest winds 10 knots or less. mostly cloudy. 
.friday...light and variable winds. a chance of showers. 
.friday night...light and variable winds becoming northeast 5 to
10 knots. a chance of showers in the evening, then showers likely
overnight. 
.saturday...northeast winds 5 to 10 knots becoming northwest.
rain showers likely. 
.sunday...west winds 5 to 10 knots. a chance of rain showers. 
.monday...west winds 5 to 10 knots becoming southwest. 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 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...an elongated 29.4 inch low over the central great lakes 
and ontario will continue to cross into quebec today 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. a ridge of 30.0 inches 
will build across the great lakes monday.


loz062-051600-
lake america open waters from the niagara river to hamlin beach-
402 am est thu nov 5 2026

.today...southwest winds 10 to 15 knots becoming west 15 to
20 knots. a chance of showers early. waves 1 to 3 feet building
to 3 to 5 feet. 
.tonight...southwest winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of showers from late evening on. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.friday...southwest winds 10 knots or less becoming west. a
chance of waterspouts. a chance of showers. waves 1 foot or less.
.friday night...west winds 5 to 15 knots. a chance of
waterspouts. showers. waves 2 feet or less. 
.saturday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of waterspouts. showers. waves 1 to 3 feet
building to 2 to 4 feet. 
.sunday...west winds 15 to 20 knots. a chance of showers sunday
night. waves 3 to 6 feet. 
.monday...west winds 15 to 20 knots becoming southwest. a chance
of showers during the day. waves 3 to 6 feet. 

$$

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open lake forecast for lake america
national weather service buffalo ny
402 am 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...an elongated 29.4 inch low over the central great lakes 
and ontario will continue to cross into quebec today 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. a ridge of 30.0 inches 
will build across the great lakes monday.


loz063>065-051600-
lake america open waters from hamlin beach to the saint lawrence
river-
402 am est thu nov 5 2026

.today...south winds 15 to 20 knots becoming west. showers early,
then a chance of showers late this morning. waves 1 to 3 feet
building to 2 to 4 feet. 
.tonight...west winds 5 to 15 knots becoming southwest. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.friday...south winds 10 knots or less becoming north. a chance
of waterspouts. a chance of showers. waves 2 feet or less. 
.friday night...northwest winds 10 knots or less becoming west
10 to 15 knots. a chance of waterspouts. showers. waves 1 to
3 feet. 
.saturday...northwest winds 15 to 20 knots. a chance of
waterspouts. showers. waves 2 to 4 feet building to 3 to 5 feet. 
.sunday...northwest winds 15 to 25 knots. a chance of waterspouts
during the day. a chance of showers. waves 3 to 6 feet building
to 5 to 8 feet. waves occasionally around 10 feet. 
.monday...northwest winds 15 to 25 knots becoming west. a chance
of showers during the day. waves 5 to 8 feet subsiding to 3 to
5 feet. waves occasionally around 10 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
331 am 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... 
low pressure of 29.40 inches over the upper midwest will move
northeast from the upper great lakes through central ontario and
into central quebec today. a trailing cold front that extends 
southward will move across lake erie early this morning. a 
secondary and stronger cold front with pressure of 29.70 inches 
will push southward across lake erie friday morning. a trough 
averaging 29.90 inches will linger across the eastern great lakes 
into this weekend. high pressure of 30.10 inches will build into 
the ohio valley sunday into early next week.


lez061-168-169-051530-
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-
331 am est thu nov 5 2026

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

$$