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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt wed jun 3 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 30.4 inch high over the central great lakes this 
morning will expand to the ohio valley and eastern seaboard today 
through thursday. this high will eventually drift off the southeast 
coast friday. a weak cold front will then settle south across the 
lower great lakes saturday into sunday.


loz062-031500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt wed jun 3 2026

.today...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.tonight...southwest winds 5 to 10 knots. waves 1 foot or less. 
.thursday...southwest winds 5 to 15 knots. waves 2 feet or less. 
.thursday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.friday...southwest winds 10 to 15 knots. showers likely friday
night. waves 1 to 2 feet building to 2 to 4 feet. 
.saturday...southwest winds 10 to 15 knots becoming west. showers
with a chance of thunderstorms. waves 1 to 3 feet. 
.sunday...north winds 5 to 10 knots becoming northeast. a chance
of showers during the day. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 030803
glflo 
expires:202606031500;;104604

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt wed jun 3 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 30.4 inch high over the central great lakes this 
morning will expand to the ohio valley and eastern seaboard today 
through thursday. this high will eventually drift off the southeast 
coast friday. a weak cold front will then settle south across the 
lower great lakes saturday into sunday.


loz063>065-031500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt wed jun 3 2026

.today...west winds 5 to 15 knots. waves 2 feet or less. 
.tonight...southwest winds 5 to 10 knots. waves 1 to 2 feet. 
.thursday...southwest winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...southwest winds 5 to 10 knots. waves 2 feet or
less. 
.friday...southwest winds 5 to 15 knots. a chance of showers
friday night. waves 1 to 3 feet. 
.saturday...southwest winds 5 to 15 knots becoming west. showers
likely with a chance of thunderstorms. waves 1 to 2 feet. 
.sunday...north winds 5 to 15 knots becoming east. showers likely
with a chance of thunderstorms during the day, then a chance of
showers sunday night. 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
403 am edt wed jun 3 2026


slz022-024-031500-
saint lawrence river from cape vincent to saint regis
403 am edt wed jun 3 2026

.today...southwest winds 10 knots or less becoming west. sunny.
.tonight...southwest winds 10 knots or less. mainly clear in the
evening, then becoming partly cloudy. 
.thursday...southwest winds 10 knots or less. mostly sunny. 
.thursday night...southwest winds 10 knots or less. partly cloudy
in the evening, then becoming mostly cloudy. 
.friday...southwest winds 5 to 10 knots. showers likely friday
night. 
.saturday...southwest winds 10 knots or less becoming south.
showers with a chance of thunderstorms. 
.sunday...northeast winds 10 knots or less. a chance of showers. 

winds and waves higher in and near thunderstorms.

$$