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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sat aug 22 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 averaging 30.1 inches exits toward 
the canadian maritimes today. elsewhere, a 29.6 inch low should 
wobble northeastward from the central great lakes to southwestern 
quebec through monday. in response to the low's track, a warm front 
drifts northeastward across lake ontario tonight and then a cold 
front sweeps eastward across the lake overnight tonight through 
sunday. behind the cold front, a trough averaging 29.8 inches 
lingers over lake ontario through monday. on tuesday through 
wednesday, a ridge averaging 30.1 inches builds from the western and 
central great lakes. the ridge should begin to exit eastward on 
thursday and allow a warm front to sweep northeastward across lake 
ontario.


loz062-222100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt sat aug 22 2026

.this afternoon...southeast winds 5 to 10 knots becoming east. a
chance of showers and thunderstorms late. waves around 1 foot. 
.tonight...southeast winds 5 to 15 knots becoming southwest.
showers with a chance of thunderstorms through the early
overnight, then showers likely late. a chance of waterspouts
after midnight. waves 1 to 2 feet. 
.sunday...west winds 15 to 25 knots. a chance of waterspouts.
showers likely in the morning, then showers likely with a chance
of thunderstorms in the afternoon. waves 1 to 3 feet building to
3 to 6 feet. 
.sunday night...west winds 15 to 25 knots. a chance of
waterspouts. a chance of showers and thunderstorms in the
evening, then showers likely overnight. waves 4 to 6 feet. 
.monday...west winds 15 to 25 knots. a chance of waterspouts.
showers during the day, then a chance of showers monday night.
waves 5 to 8 feet subsiding to 3 to 5 feet. waves occasionally
around 10 feet. 
.tuesday...west winds 15 to 20 knots diminishing to less than
10 knots. a chance of waterspouts during the day. a chance of
showers during the day. waves 2 to 4 feet subsiding to 1 foot or
less. 
.wednesday...southwest 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 ontario
national weather service buffalo ny
1002 am edt sat aug 22 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 averaging 30.1 inches exits toward 
the canadian maritimes today. elsewhere, a 29.6 inch low should 
wobble northeastward from the central great lakes to southwestern 
quebec through monday. in response to the low's track, a warm front 
drifts northeastward across lake ontario tonight and then a cold 
front sweeps eastward across the lake overnight tonight through 
sunday. behind the cold front, a trough averaging 29.8 inches 
lingers over lake ontario through monday. on tuesday through 
wednesday, a ridge averaging 30.1 inches builds from the western and 
central great lakes. the ridge should begin to exit eastward on 
thursday and allow a warm front to sweep northeastward across lake 
ontario.


loz063>065-222100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt sat aug 22 2026

.this afternoon...southeast winds 5 to 15 knots. waves 1 to 3 feet
subsiding to 1 foot or less. 
.tonight...southeast winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. showers likely with a chance of
thunderstorms. a chance of waterspouts after midnight. waves 1 to
3 feet building to 3 to 5 feet. 
.sunday...south winds 15 to 25 knots becoming west. a chance of
waterspouts. showers with a chance of thunderstorms. waves 3 to
5 feet building to 3 to 6 feet. 
.sunday night...west winds 15 to 25 knots becoming southwest. a
chance of waterspouts. showers likely with a chance of
thunderstorms in the evening, then showers overnight. waves 3 to
6 feet building to 4 to 7 feet. waves occasionally around 9 feet.
.monday...southwest winds to 30 knots becoming west 15 to
25 knots. a chance of waterspouts. showers. waves 4 to 7 feet
building to 6 to 9 feet, then subsiding to 4 to 7 feet. waves
occasionally around 11 feet. 
.tuesday...west winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of waterspouts during the day. showers likely
during the day, then a chance of showers tuesday night. waves
3 to 6 feet subsiding to 1 to 3 feet. 
.wednesday...west winds 5 to 15 knots becoming south. 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
941 am edt sat aug 22 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 cold front will move east through the area this evening. a 
trough averaging 29.80 will linger over the eastern great lakes 
sunday into monday. high pressure 30.00 inches will gradually
build into the region monday through tuesday.


lez061-167>169-222015-
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-
941 am edt sat aug 22 2026

.rest of today...south winds 10 to 15 knots becoming southwest. a
chance of showers with a slight chance of thunderstorms late this
morning, then a chance of showers and thunderstorms early this
afternoon. showers and thunderstorms late. waves 2 feet or less. 
.tonight...southwest winds 10 to 15 knots becoming northwest
15 to 20 knots. showers and thunderstorms early, then showers
with a chance of thunderstorms. a chance of showers with a slight
chance of thunderstorms late. a chance of waterspouts after
midnight. waves 1 to 3 feet building to 3 to 5 feet. 
.sunday...northwest winds 15 to 25 knots becoming west. a chance
of waterspouts. a chance of showers in the morning, then showers
likely with a chance of thunderstorms in the afternoon. waves
3 to 6 feet. 
.sunday night...west winds 15 to 20 knots. a chance of
waterspouts. showers with a chance of thunderstorms in the
evening, then showers likely overnight. waves 3 to 6 feet. 
.monday...west winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. a chance of waterspouts. a chance
of showers. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.tuesday...northwest winds 5 to 10 knots becoming southwest.
waves 2 feet or less. 
.wednesday...south winds 5 to 15 knots. a chance of showers
wednesday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$