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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1003 am edt wed jul 8 2026


slz022-024-082100-
saint lawrence river from cape vincent to saint regis
1003 am edt wed jul 8 2026

.this afternoon...southwest winds 5 to 10 knots. sunny.
.tonight...southwest winds 10 knots or less. mainly clear through
the early overnight, then becoming partly cloudy. 
.thursday...southwest winds 10 knots or less becoming west. a
chance of showers in the morning, then showers and scattered
thunderstorms in the afternoon. 
.thursday night...west winds less than 10 knots. showers and
scattered thunderstorms in the evening, then showers overnight. 
.friday...northwest winds less than 10 knots becoming north. a
chance of showers during the day. 
.saturday...north winds less than 10 knots. mainly clear. 
.sunday...light and variable winds. mainly clear, then becoming
partly cloudy. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt wed jul 8 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 broad 30.1 inch high will remain over the lower great 
lakes through wednesday night while slowly drifting southeast toward 
the delmarva. a weak cold front will cross the lake thursday night 
through early friday, while another 30.1 inch high builds across the 
upper great lakes friday, then expands across the lower great lakes 
later friday night through the weekend.


loz063>065-082100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt wed jul 8 2026

.this afternoon...south winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.tonight...south winds 10 knots or less becoming southwest. waves
1 foot or less. 
.thursday...southwest winds 5 to 10 knots becoming west. a chance
of showers in the afternoon. waves 1 foot or less. 
.thursday night...west winds 5 to 10 knots. showers likely. waves
1 foot or less. 
.friday...northwest winds 5 to 10 knots becoming north. showers
likely during the day. waves 1 foot or less. 
.saturday...northeast winds 10 knots or less becoming south.
waves 1 foot or less. 
.sunday...south winds 10 knots or less. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$