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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun jun 22 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 29.6 inch surface low over southwest quebec will advance eastward 
today. a 30.2 inch surface high will then be anchored over the east 
coast through tuesday. a frontal boundary will then sag southward 
tuesday night, and stall over or near the lake for wednesday through 
thursday, with a couple of weak areas of low pressure averaging 30.0 
inches rippling east along the boundary during this time.


loz062-221500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt sun jun 22 2025

.today...southwest winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of showers and thunderstorms this morning.
waves 4 to 7 feet subsiding to 3 to 6 feet. waves occasionally
around 9 feet. 
.tonight...southwest winds around 10 knots. waves 2 to 4 feet. 
.monday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. waves 2 to 4 feet. 
.monday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.tuesday...southwest winds 5 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.wednesday...northeast winds 5 to 10 knots becoming east. a
chance of showers. waves 1 to 2 feet. 
.thursday...east winds 10 to 15 knots. a chance of showers. waves
1 to 2 feet. 

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 sun jun 22 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 29.6 inch surface low over southwest quebec will advance eastward 
today. a 30.2 inch surface high will then be anchored over the east 
coast through tuesday. a frontal boundary will then sag southward 
tuesday night, and stall over or near the lake for wednesday through 
thursday, with a couple of weak areas of low pressure averaging 30.0 
inches rippling east along the boundary during this time.


loz063>065-221500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt sun jun 22 2025

.today...southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. showers and thunderstorms likely
early, then a chance of showers and thunderstorms late this
morning. some thunderstorms may produce gusty winds this morning.
waves 4 to 7 feet subsiding to 3 to 6 feet. waves occasionally
around 9 feet. 
.tonight...southwest winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.monday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.monday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.tuesday...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 10 to 15 knots becoming east. a
chance of showers. 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 sun jun 22 2025


slz022-024-221500-
saint lawrence river from cape vincent to saint regis
402 am edt sun jun 22 2025

.today...southwest winds 5 to 15 knots becoming west. a chance of
showers and thunderstorms this morning. some thunderstorms may
produce gusty winds this morning. 
.tonight...west winds less than 10 knots. patchy fog late. 
.monday...southwest winds 10 knots or less increasing to 10 to
15 knots. sunny.
.monday night...southwest winds 5 to 10 knots. mainly clear. 
.tuesday...southwest winds 10 knots or less becoming northwest. a
chance of showers and thunderstorms. 
.wednesday...northeast winds less than 10 knots. a chance of
showers wednesday night. 
.thursday...northeast winds 10 knots or less. a chance of
showers. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
442 am edt sun jun 22 2025

for waters beyond five nautical miles of shore on lake erie

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 ridge averaging 30.10 inches will persist over the region
through tuesday. a cold front will drift south across the great
lakes tuesday night and stall near lake erie wednesday and
thursday.


lez061-168-169-221430-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
442 am edt sun jun 22 2025

.today...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.tonight...southwest winds 5 to 15 knots. waves 1 to 3 feet. 
.monday...southwest winds 10 to 15 knots. waves 1 to 2 feet. 
.monday night...southwest winds 5 to 15 knots. waves 1 to 2 feet.
.tuesday...southwest winds 5 to 15 knots becoming west less than
10 knots. waves 1 to 2 feet. 
.wednesday...north winds 10 knots or less becoming southwest. a
chance of showers and thunderstorms. waves 1 foot or less. 
.thursday...west winds 5 to 10 knots becoming southeast. a chance
of showers and thunderstorms. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$