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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 am edt fri aug 28 2026


slz022-024-281500-
saint lawrence river from cape vincent to saint regis
403 am edt fri aug 28 2026

.today...northwest winds 5 to 10 knots. cloudy early, then
becoming mostly sunny. 
.tonight...northwest winds less than 10 knots. mainly clear. 
.saturday...light and variable winds becoming southwest 5 to
10 knots. sunny.
.saturday night...southwest winds 5 to 10 knots. mainly clear in
the evening, then becoming partly cloudy. 
.sunday...southwest winds 5 to 10 knots becoming light and
variable. showers likely with a chance of thunderstorms. 
.monday...northeast winds less than 10 knots. a chance of
showers. 
.tuesday...east winds less than 10 knots becoming south. a chance
of showers. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri aug 28 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 30.2 inch high will build from the upper great lakes 
today to the lower great lakes tonight before drifting off the new 
england coast by sunday. a weak frontal boundary is then forecast to 
stall just north of the lake sunday night through tuesday.


loz063>065-281500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt fri aug 28 2026

.today...north winds 5 to 15 knots becoming west. waves 1 to
3 feet. 
.tonight...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.saturday...southwest winds 5 to 10 knots. waves 1 foot or less. 
.saturday night...south winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.sunday...southwest winds 5 to 15 knots becoming west. a chance
of showers sunday night. waves 2 feet or less. 
.monday...east winds 5 to 10 knots becoming southeast. a chance
of showers. waves 1 foot or less. 
.tuesday...south winds 5 to 10 knots. a chance of showers. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$