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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun aug 16 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 high pressure ridge continues to exit eastward before a warm front 
drifts northeastward across lake ontario this evening and is 
followed quickly by the eastward passage of a cold front this 
evening through tonight. behind the cold front, a trough averaging 
29.8 inches should linger over lake ontario through monday. a 30.0 
inch high should build from the upper midwest monday night and 
traverse lake ontario on tuesday. the ridge should begin to exit 
eastward tuesday night before a cold front sweeps southeastward 
across lake ontario wednesday through wednesday night. behind the 
cold front, a 30.1 inch high should build from the western great 
lakes through this thursday.


loz062-161500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt sun aug 16 2026

.today...southeast winds 5 to 15 knots becoming east. waves 1 to
3 feet. 
.tonight...east winds 10 knots or less becoming west. a chance of
showers and thunderstorms in the evening, then a chance of
showers after midnight. waves 1 foot or less. 
.monday...northwest winds 5 to 10 knots becoming west. waves
2 feet or less. 
.monday night...northwest winds 5 to 10 knots. waves 2 feet or
less. 
.tuesday...west winds 10 knots or less becoming southwest 10 to
15 knots. a chance of showers and thunderstorms tuesday night.
waves 2 feet or less. 
.wednesday...west winds 10 to 15 knots becoming northwest. a
chance of showers and thunderstorms during the day, then a chance
of showers wednesday night. waves 1 to 2 feet. 
.thursday...northwest winds 5 to 10 knots. waves 1 foot or less. 

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 aug 16 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 high pressure ridge continues to exit eastward before a warm front 
drifts northeastward across lake ontario this evening and is 
followed quickly by the eastward passage of a cold front this 
evening through tonight. behind the cold front, a trough averaging 
29.8 inches should linger over lake ontario through monday. a 30.0 
inch high should build from the upper midwest monday night and 
traverse lake ontario on tuesday. the ridge should begin to exit 
eastward tuesday night before a cold front sweeps southeastward 
across lake ontario wednesday through wednesday night. behind the 
cold front, a 30.1 inch high should build from the western great 
lakes through this thursday.


loz063>065-161500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt sun aug 16 2026

.today...southeast winds 5 to 15 knots. waves 1 to 3 feet
subsiding to 1 foot or less. 
.tonight...southeast winds 15 to 20 knots becoming southwest
10 to 15 knots. a chance of showers and thunderstorms through the
early overnight, then a chance of showers late. waves 1 to
3 feet. 
.monday...west winds 5 to 10 knots becoming northwest. a chance
of showers. waves 2 feet or less. 
.monday night...west winds 10 knots or less becoming north. waves
2 feet or less. 
.tuesday...northwest winds 10 knots or less becoming southwest
10 to 15 knots. a chance of showers tuesday night. waves 2 feet
or less. 
.wednesday...west winds 5 to 15 knots becoming northwest. showers
likely with a chance of thunderstorms during the day, then a
chance of showers and thunderstorms wednesday night. waves 1 to
2 feet. 
.thursday...northwest winds 5 to 10 knots becoming west. waves
2 feet 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
345 am edt sun aug 16 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...
a warm front will lift northeast away from lake erie this morning
with a cold front moving east across the lake late tonight into
early monday morning. high pressure 30.00 inches will build into
the region monday through tuesday before the next cold front
pushes southeast across the region wednesday. high pressure 30.00
inches will build across the great lakes thursday.


lez061-168-169-161415-
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-
345 am edt sun aug 16 2026

.today...southeast winds 5 to 10 knots becoming southwest. a
slight chance of showers late this morning. a chance of showers
and thunderstorms this afternoon. waves 2 feet or less. 
.tonight...southwest winds 10 to 15 knots becoming northwest. a
chance of showers and thunderstorms in the evening, then a chance
of showers after midnight. waves 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots becoming west. waves 1 to
3 feet. 
.monday night...west winds 5 to 15 knots becoming northwest less
than 10 knots. waves 2 feet or less. 
.tuesday...west winds 10 knots or less becoming southwest 10 to
15 knots. showers likely with a chance of thunderstorms tuesday
night. waves 1 to 3 feet. 
.wednesday...west winds 5 to 15 knots becoming north. showers
likely with a chance of thunderstorms during the day. waves 1 to
3 feet. 
.thursday...north winds 5 to 10 knots becoming northeast. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$