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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri aug 29 2025

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 over the upper great lakes will 
gradually settle across the lake later today through labor day, 
before drifting off the mid-atlantic coastline tuesday and 
wednesday.


loz064-065-292100-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am edt fri aug 29 2025

.rest of today...northwest winds 10 to 15 knots becoming west. a
chance of waterspouts late this morning. a chance of showers late
this morning. waves 1 to 3 feet. 
.tonight...northwest winds 10 to 15 knots. waves 1 to 3 feet. 
.saturday...northwest winds 10 to 15 knots becoming west. waves
1 to 2 feet. 
.saturday night...west winds 5 to 10 knots becoming northwest.
waves 2 feet or less. 
.sunday...northwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.monday...southeast winds less than 10 knots. waves 1 foot or
less. 
.tuesday...south winds 10 knots or less. waves 1 foot or less. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am edt fri aug 29 2025


slz022-024-292100-
saint lawrence river from cape vincent to saint regis
1002 am edt fri aug 29 2025

.this afternoon...northwest winds 10 knots or less becoming west.
a chance of showers, then showers likely late. 
.tonight...west winds less than 10 knots. a chance of showers in
the evening. 
.saturday...west winds 10 knots or less. a chance of showers. 
.saturday night...west winds less than 10 knots. a chance of
showers in the evening. 
.sunday...light and variable winds. mainly clear. 
.monday...light and variable winds. mainly clear, then becoming
partly cloudy. 
.tuesday...light and variable winds. partly cloudy. 

$$