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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt tue aug 25 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 ridge averaging 30.1 inches will build from the 
western and central great lakes through wednesday. the ridge will 
exit eastward wednesday night through thursday morning and allow a 
warm front to sweep northeastward across lake ontario before a cold 
front sweeps eastward across the lake thursday evening through 
thursday night. behind the cold front, a high pressure ridge 
averaging 30.0 inches should build from the upper midwest through 
saturday and then begin to exit eastward on sunday.


loz062-252100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt tue aug 25 2026

.this afternoon...northwest winds 5 to 15 knots becoming west.
waves 1 to 3 feet. 
.tonight...west winds 10 knots or less becoming south. waves
1 foot or less. 
.wednesday...southwest winds 10 knots or less becoming east.
waves 1 foot or less. 
.wednesday night...east winds 5 to 15 knots becoming south. a
chance of showers overnight. waves 2 feet or less. 
.thursday...southwest winds 5 to 15 knots becoming northwest.
showers likely with a chance of thunderstorms during the day,
then a chance of showers thursday night. waves 1 to 3 feet. 
.friday...northwest winds 5 to 10 knots becoming north. waves
1 foot or less. 
.saturday...northeast winds 10 knots or less becoming south.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 251402
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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt tue aug 25 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 ridge averaging 30.1 inches will build from the 
western and central great lakes through wednesday. the ridge will 
exit eastward wednesday night through thursday morning and allow a 
warm front to sweep northeastward across lake ontario before a cold 
front sweeps eastward across the lake thursday evening through 
thursday night. behind the cold front, a high pressure ridge 
averaging 30.0 inches should build from the upper midwest through 
saturday and then begin to exit eastward on sunday.


loz063>065-252100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt tue aug 25 2026

.this afternoon...northwest winds 10 to 15 knots becoming west. a
chance of showers. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...west winds 10 knots or less. waves 2 feet or less. 
.wednesday...southwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.wednesday night...east winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...south winds 15 to 20 knots becoming west 5 to
15 knots. showers likely with a chance of thunderstorms. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.friday...northwest winds 5 to 10 knots becoming north. waves
2 feet or less. 
.saturday...north winds 10 knots or less becoming south. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
944 am edt tue aug 25 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 30.00 inches moves across the region today before 
shifting east. low pressure 29.80 inches tracks north of the great
lakes wednesday and thursday, pulling a cold front across lake 
erie on thursday. high pressure 30.20 inches builds into the great
lakes friday and into the weekend.


lez061-168-169-252015-
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-
944 am edt tue aug 25 2026

.this afternoon...northwest winds 10 knots or less. waves 2 feet 
or less. 
.tonight...west winds 5 to 10 knots becoming south. waves 1 foot
or less. 
.wednesday...south winds 5 to 15 knots becoming southwest less
than 10 knots. waves 2 feet or less. 
.wednesday night...south winds 5 to 15 knots becoming southwest
15 to 20 knots. showers likely overnight. waves 1 to 3 feet
building to 2 to 4 feet. 
.thursday...southwest winds 15 to 20 knots becoming north 5 to
15 knots. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.friday...north winds 5 to 10 knots becoming northeast. waves
1 foot or less. 
.saturday...east winds 10 knots or less becoming south. waves
1 foot or less. 

$$