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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun jul 12 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 large 30.2 inch high will slide east into new england 
through monday, then off the coast by tuesday. this will allow a 
warm front to sweep across the lake tuesday, followed by a cold 
front pushing south across the lake on wednesday, trailed by a 
secondary cold front pushing south across the lake thursday into 
friday.


loz062-130900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sun jul 12 2026

.overnight...light and variable winds. waves 1 foot or
less. 
.monday...southwest winds 10 knots or less. waves 1 foot or less.
.monday night...southwest winds 5 to 15 knots. waves 1 to 3 feet.
.tuesday...southwest winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 5 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west.
waves 3 to 6 feet. 
.wednesday...west winds 5 to 15 knots becoming northwest. waves
2 to 4 feet subsiding to 1 to 2 feet. 
.thursday...northwest winds 5 to 15 knots. waves 1 to 2 feet. 
.friday...north winds 5 to 10 knots becoming northwest. a chance
of showers friday night. waves 1 foot or less. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun jul 12 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 large 30.2 inch high will slide east into new england 
through monday, then off the coast by tuesday. this will allow a 
warm front to sweep across the lake tuesday, followed by a cold 
front pushing south across the lake on wednesday, trailed by a 
secondary cold front pushing south across the lake thursday into 
friday.


loz063>065-130900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sun jul 12 2026

.overnight...southwest winds less than 10 knots. waves
1 foot or less. 
.monday...southwest winds 5 to 10 knots. waves 2 feet or less. 
.monday night...southwest winds 5 to 15 knots. waves 1 to 3 feet.
.tuesday...southwest winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 6 feet. 
.tuesday night...southwest winds 15 to 25 knots becoming west.
waves 4 to 7 feet. waves occasionally around 9 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.thursday...northwest winds 5 to 15 knots. waves 1 to 3 feet. 
.friday...north winds 5 to 10 knots becoming west. a chance of
showers friday night. waves 2 feet or less. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
942 pm edt sun jul 12 2026

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...
high pressure 30.20 inches continues to build over the great lakes
region through monday before settling south across the ohio valley
by tuesday. a cold front will sink south across lake erie on
wednesday night.


lez061-167>169-130815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 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-
942 pm edt sun jul 12 2026

.overnight...northeast winds 5 to 10 knots becoming east.
waves 2 feet or less. 
.monday...southeast winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.monday night...southwest winds 5 to 10 knots. waves 1 foot or
less. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. waves 2 to 4 feet. 
.wednesday...west winds 5 to 15 knots becoming north. waves 1 to
3 feet. 
.thursday...northwest winds 5 to 10 knots becoming north. waves
1 foot or less. 
.friday...northwest winds 5 to 15 knots becoming south. a chance
of showers friday night. waves 2 feet or less. 

$$