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open lake forecast for lake ontario
national weather service buffalo ny
1002 am 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 today to western quebec by early sunday before moving to 
northern quebec early monday. meanwhile, a trailing cold front will 
cross the lake sunday night. 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.


loz062-092100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt sat may 9 2026

.this afternoon...southeast winds 10 knots or less increasing to
10 to 15 knots. waves 2 feet or less. 
.tonight...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers in the evening. waves 1 to 3 feet. 
.sunday...west winds around 10 knots. waves 1 to 2 feet. 
.sunday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 2 feet. 
.monday...west winds 5 to 10 knots becoming northwest. waves
2 feet or less. 
.tuesday...west 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 north 10 to
15 knots. showers likely during the day, then a chance of showers
wednesday night. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 

$$

fzus61 kbuf 091402
glflo 
expires:202605092100;;273994

open lake forecast for lake ontario
national weather service buffalo ny
1002 am 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 today to western quebec by early sunday before moving to 
northern quebec early monday. meanwhile, a trailing cold front will 
cross the lake sunday night. 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>065-092100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt sat may 9 2026

.this afternoon...southeast winds 5 to 10 knots. waves 2 feet or
less. 
.tonight...south winds 10 to 15 knots becoming west. a chance of
showers early, then showers late in the evening. a chance of
showers after midnight. waves 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 5 to 15 knots. waves 1 to 3 feet. 
.monday...west winds 5 to 15 knots becoming northwest. waves 1 to
3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming southeast. a
chance of rain showers tuesday night. waves 2 feet or less. 
.wednesday...southeast winds 10 to 15 knots. showers likely.
waves 1 to 3 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
1025 am 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...
low pressure 29.50 inches will move east through the upper great
lakes today, extending a cold front across the area this evening.
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. 


lez061-168-169-092015-
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-
1025 am edt sat may 9 2026

.this afternoon...southwest winds 5 to 10 knots. a chance of
showers and thunderstorms late. waves 2 feet or less. 
.tonight...southwest winds 5 to 15 knots becoming northwest.
showers and thunderstorms likely early, then a slight chance of
showers and thunderstorms late in the evening. waves 1 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. waves 2 feet or less. 
.tuesday...northwest winds 10 knots or less becoming south and
increasing to 15 to 20 knots. rain showers tuesday night. waves
2 feet or less. 
.wednesday...south winds 15 to 20 knots becoming northwest 5 to
15 knots. showers likely during the day, then a chance of showers
wednesday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$