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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat may 9 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 weak 29.5 inch low will move from the upper great 
lakes tonight to western quebec by early sunday before moving to 
northern quebec early monday. meanwhile, a trailing cold front will 
cross the lake tonight. a 30.4 inch high will then build from the 
upper great lakes monday to the lower great lakes by tuesday. a 29.8 
inch low will move across the lower great lakes into the ohio valley 
wednesday.


loz062-100900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sat may 9 2026

.rest of tonight...southwest winds 15 to 20 knots becoming west
10 to 15 knots. a chance of showers late this evening. waves 2 to
3 feet. 
.sunday...west winds 10 to 15 knots becoming southwest. waves
1 to 2 feet. 
.sunday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 2 feet. 
.monday...northwest winds 5 to 10 knots becoming west. waves
2 feet or less. 
.monday night...west winds 5 to 10 knots becoming northwest.
waves 2 feet or less. 
.tuesday...west winds 10 knots or less becoming southeast 10 to
15 knots. rain showers tuesday night. waves 2 feet or less. 
.wednesday...southeast winds 15 to 20 knots becoming north 10 to
15 knots. showers. waves 1 to 3 feet. 
.thursday...north winds 5 to 15 knots. a chance of showers during
the day. waves 1 to 2 feet. 

$$

fzus61 kbuf 100202
glflo 
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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat may 9 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 weak 29.5 inch low will move from the upper great 
lakes tonight to western quebec by early sunday before moving to 
northern quebec early monday. meanwhile, a trailing cold front will 
cross the lake tonight. a 30.4 inch high will then build from the 
upper great lakes monday to the lower great lakes by tuesday. a 29.8 
inch low will move across the lower great lakes into the ohio valley 
wednesday.


loz063>065-100900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sat may 9 2026

.rest of tonight...southwest winds 15 to 20 knots becoming west
10 to 15 knots. showers likely late this evening, then a chance
of showers after midnight. waves 1 to 3 feet building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.sunday...west winds 10 to 15 knots increasing to 15 to 20 knots.
waves 1 to 3 feet building to 2 to 4 feet. 
.sunday night...west winds 15 to 20 knots diminishing to 5 to
10 knots. waves 2 to 4 feet subsiding to 1 foot or less. 
.monday...west winds 5 to 15 knots. waves 1 to 3 feet. 
.monday night...west winds 5 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming southeast. rain
showers likely tuesday night. waves 2 feet or less. 
.wednesday...southeast winds 15 to 20 knots becoming south 10 to
15 knots. showers. waves 1 to 3 feet. 
.thursday...northwest winds 5 to 10 knots becoming north. a
chance of showers. waves 2 feet or less. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
941 pm edt sat may 9 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 continue across lake erie tonight. high 
pressure 30.20 inches will gradually build southeast across the 
upper midwest into the great lakes sunday and persist through 
monday night. another low pressure system 29.90 inches will move 
east through the lower great lakes late tuesday into wednesday.


lez061-168-169-100815-
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-
941 pm edt sat may 9 2026

.rest of tonight...southwest winds 5 to 15 knots becoming
northwest. a chance of showers with a slight chance of
thunderstorms late this evening, then a slight chance of showers
after midnight. waves 2 to 3 feet. 
.sunday...northwest winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.sunday night...west winds 10 knots or less becoming north. waves
1 foot or less. 
.monday...north winds 5 to 10 knots becoming west. waves 1 foot
or less. 
.monday night...west winds 10 knots or less becoming northeast.
waves 2 feet or less. 
.tuesday...light and variable winds becoming south 15 to
20 knots. rain showers tuesday night. waves 1 foot or less
building to 1 to 3 feet. 
.wednesday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. showers likely during the day, then a chance of
showers wednesday night. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.thursday...northwest winds 5 to 15 knots becoming west less than
10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$