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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1012 am edt fri apr 10 2026


slz022-024-102100-
saint lawrence river from cape vincent to saint regis
1012 am edt fri apr 10 2026

.this afternoon...north winds 5 to 10 knots. showers.
.tonight...northwest winds 10 knots or less. a chance of rain
showers in the evening. 
.saturday...northwest winds 5 to 10 knots. mostly sunny. 
.saturday night...west winds 5 to 10 knots becoming light and
variable. mainly clear. 
.sunday...south winds 5 to 15 knots increasing to 15 to 20 knots.
rain showers. 
.monday...southwest winds 15 to 20 knots becoming west 5 to
15 knots. showers during the day, then a chance of showers monday
night. 
.tuesday...northeast winds 5 to 10 knots becoming southeast.
showers likely. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1011 am edt fri apr 10 2026

for waters beyond five nautical miles of shore on lake ontario

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 front will stall just south of the lake today before 
moving off the new england coast saturday. a 30.5 inch high will 
then build into the central great lakes saturday, then drift east to 
new england by sunday. a 29.4 inch low will then move from near lake 
superior sunday night to northern quebec monday, with a trailing 
cold front stalling north of the lake monday through tuesday.


loz063>065-102100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1011 am edt fri apr 10 2026

.this afternoon...northeast winds 5 to 15 knots becoming north.
rain showers. waves 2 feet or less. 
.tonight...northwest winds 5 to 15 knots. rain showers likely
early, then a chance of rain showers late in the evening. waves
2 feet or less. 
.saturday...northwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.saturday night...west winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.sunday...southeast winds 5 to 15 knots becoming south and
increasing to 15 to 25 knots. rain showers likely. waves 2 feet
or less building to 4 to 7 feet. waves occasionally around
9 feet. 
.monday...southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. showers likely during the day,
then a chance of showers monday night. waves 4 to 7 feet
subsiding to 3 to 5 feet. waves occasionally around 9 feet. 
.tuesday...southeast winds 10 to 15 knots becoming south 15 to
20 knots. showers likely. waves 1 to 3 feet. 

$$