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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt mon jun 23 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 area of high pressure over the ohio valley 
this morning will gradually drift towards the southeast states 
through wednesday. a weak cold front will then settle south across 
the eastern great lakes region tuesday night through wednesday, then 
stall just south of the lake through the end of the week.


loz063>065-231500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt mon jun 23 2025

.today...southwest winds 5 to 15 knots. waves 1 to 2 feet. 
.tonight...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots becoming west. waves
1 to 3 feet. 
.tuesday night...west winds 5 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots becoming northeast. a
chance of showers wednesday night. waves 2 feet or less. 
.thursday...northeast winds 5 to 10 knots becoming east. a chance
of showers. waves 2 feet or less. 
.friday...east winds around 10 knots becoming south. showers
likely with a chance of thunderstorms. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 am edt mon jun 23 2025


slz022-024-231500-
saint lawrence river from cape vincent to saint regis
402 am edt mon jun 23 2025

.today...south winds 10 knots or less becoming southwest 10 to
15 knots. becoming mostly sunny. 
.tonight...southwest winds 5 to 15 knots. mainly clear. 
.tuesday...southwest winds 5 to 10 knots becoming west. a chance
of showers and thunderstorms in the afternoon. 
.tuesday night...west winds 10 knots or less becoming north. a
chance of showers and thunderstorms in the evening. 
.wednesday...north winds less than 10 knots becoming northeast.
partly cloudy. 
.thursday...northeast winds 10 knots or less becoming east. a
chance of showers thursday night. 
.friday...east winds 5 to 10 knots becoming southeast. showers
likely with a chance of thunderstorms. 

winds and waves higher in and near thunderstorms.

$$