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open lake forecast for lake ontario
national weather service buffalo ny
403 am edt mon aug 10 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 warm front sweeps northeastward across lake ontario 
this morning, followed by a cold front crossing the lake late this 
evening. behind the cold front, a trough averaging 29.8 inches will 
linger over the eastern great lakes through thursday. a cold front 
sweeps across the lake thursday night, with a 30.2 inch high 
pressure ridge building in from the upper great lakes on friday.


loz062-101500-
lake ontario open waters from the niagara river to hamlin beach-
403 am edt mon aug 10 2026

.today...southwest winds 5 to 15 knots. a chance of showers this
morning, then a chance of showers and thunderstorms this
afternoon. waves 2 feet or less building to 2 to 3 feet. 
.tonight...west winds 10 to 15 knots becoming northwest. a chance
of showers and thunderstorms early. waves 1 to 3 feet. 
.tuesday...northwest winds 5 to 10 knots becoming southwest.
waves 2 feet or less. 
.tuesday night...west winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.wednesday...light and variable winds becoming northwest 5 to
10 knots. a chance of showers wednesday night. waves 1 foot or
less. 
.thursday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.friday...north winds 5 to 10 knots becoming northeast. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 100803
glflo 
expires:202608101500;;927670

open lake forecast for lake ontario
national weather service buffalo ny
403 am edt mon aug 10 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 warm front sweeps northeastward across lake ontario 
this morning, followed by a cold front crossing the lake late this 
evening. behind the cold front, a trough averaging 29.8 inches will 
linger over the eastern great lakes through thursday. a cold front 
sweeps across the lake thursday night, with a 30.2 inch high 
pressure ridge building in from the upper great lakes on friday.


loz063>065-101500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 am edt mon aug 10 2026

.today...south winds 10 to 15 knots becoming west. a chance of
showers this morning, then a chance of showers and thunderstorms
this afternoon. waves 1 to 3 feet. 
.tonight...west winds 10 to 15 knots becoming northwest. a chance
of showers and thunderstorms in the evening. waves 1 to 3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming west. waves
1 to 3 feet. 
.tuesday night...west winds 10 knots or less becoming northwest.
waves 2 feet or less. 
.wednesday...west winds 10 knots or less. a chance of showers
wednesday night. waves 1 foot or less. 
.thursday...northwest winds 5 to 15 knots. a chance of showers
during the day. waves 1 to 2 feet. 
.friday...north winds 5 to 10 knots. 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
350 am edt mon aug 10 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 frontal boundary will wobble slightly north and south near lake
erie through wednesday. three weak low pressure systems 29.90 
inches will move along the front this morning through wednesday. 
the front will finally push south of the region wednesday night as
high pressure 30.00 inches builds into the region thursday and
friday.


lez061-168-169-101415-
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-
350 am edt mon aug 10 2026

.today...southwest winds 15 to 20 knots becoming west. showers
likely with a chance of thunderstorms this morning, then a chance
of showers and thunderstorms this afternoon. waves 2 to 4 feet
building to 3 to 5 feet. 
.tonight...southwest winds 15 to 20 knots becoming northwest 5 to
15 knots. a slight chance of showers and thunderstorms early,
then a chance of showers with a slight chance of thunderstorms. a
slight chance of showers late. waves 2 to 4 feet subsiding to
1 to 2 feet. 
.tuesday...north winds 10 knots or less becoming west. waves
1 foot or less. 
.tuesday night...northwest winds less than 10 knots becoming
east. waves 1 foot or less. 
.wednesday...east winds 10 knots or less becoming northwest. a
chance of showers. waves 1 foot or less. 
.thursday...northwest winds 5 to 10 knots becoming north. waves
2 feet or less. 
.friday...northeast winds 5 to 10 knots becoming east. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$