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open lake forecast for lake ontario
national weather service buffalo ny
402 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 30.1 inch high over new england this morning will 
drift east across the canadian maritimes today. an elongated, and 
slightly deepening 29.7 inch low will slowly make its way from the 
central great lakes to western quebec today and sunday, while 
pushing its associated warm and cold fronts across the lake between 
to night and sunday morning. the now 29.6 inch area of low pressure 
will wobble across western quebec through monday, then eject 
northeastward across labrador on tuesday while a 30.1 inch high 
builds eastward across the ohio valley. this surface high will drift 
across the southern mid-atlantic states wednesday, and to the east 
coast by wednesday night.


loz062-221500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt sat aug 22 2026

.today...southeast winds 5 to 15 knots becoming east. a chance of
showers and thunderstorms late. waves 1 to 2 feet. 
.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
402 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 30.1 inch high over new england this morning will 
drift east across the canadian maritimes today. an elongated, and 
slightly deepening 29.7 inch low will slowly make its way from the 
central great lakes to western quebec today and sunday, while 
pushing its associated warm and cold fronts across the lake between 
to night and sunday morning. the now 29.6 inch area of low pressure 
will wobble across western quebec through monday, then eject 
northeastward across labrador on tuesday while a 30.1 inch high 
builds eastward across the ohio valley. this surface high will drift 
across the southern mid-atlantic states wednesday, and to the east 
coast by wednesday night.


loz063>065-221500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt sat aug 22 2026

.today...southeast winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 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
358 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 approach the western basin of lake erie this 
afternoon and move across the lake this evening. pressure will
drop steadily to 29.80 inches with the passage of the cold front 
by this evening. a trough of low pressure averaging 29.80 will 
hang over the eastern great lakes sunday into sunday evening. 
high pressure slowly builds back in late sunday night through
tuesday averaging 30.00 inches over lake erie.


lez061-168-169-221415-
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-
358 am edt sat aug 22 2026

.today...south winds 5 to 15 knots becoming southwest. a slight
chance of showers and thunderstorms this morning, then showers
and thunderstorms this afternoon. waves 2 feet or less. 
.tonight...south winds 5 to 15 knots becoming northwest 15 to
20 knots. showers and thunderstorms in the evening, then showers
likely with a chance of thunderstorms after midnight. 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 1 to 2 feet. 
.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.

$$
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