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open lake forecast for lake ontario
national weather service buffalo ny
1002 am est mon nov 17 2025

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 28.8 low will make its way across the canadian 
maritimes today, before withdrawing northward across labrador on 
tuesday. a 30.3 inch high will then build from the upper great lakes 
tuesday to the lower great lakes wednesday, then to new england 
thursday. a 29.6 inch low over central ontario will then make its 
way to quebec friday, while pushing its trailing cold front across 
the lake.


loz062-172200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est mon nov 17 2025

.this afternoon...northwest winds 20 to 25 knots. a chance of snow
showers. waves 5 to 8 feet. waves occasionally around 10 feet. 
.tonight...northwest winds 15 to 25 knots. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.tuesday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 5 to 10 knots becoming north.
waves 1 foot or less. 
.wednesday...north winds less than 10 knots becoming southeast.
waves 1 foot or less. 
.thursday...east winds 10 knots or less becoming south. rain
showers likely thursday night. waves 1 foot or less. 
.friday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots. showers likely during the day, then a chance of showers
friday night. waves 1 to 3 feet building to 2 to 4 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 am est mon nov 17 2025

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 28.8 low will make its way across the canadian 
maritimes today, before withdrawing northward across labrador on 
tuesday. a 30.3 inch high will then build from the upper great lakes 
tuesday to the lower great lakes wednesday, then to new england 
thursday. a 29.6 inch low over central ontario will then make its 
way to quebec friday, while pushing its trailing cold front across 
the lake.


loz063-172200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est mon nov 17 2025

.this afternoon...northwest winds to 30 knots. a chance of snow
showers, then lake effect snow showers likely late. waves 7 to
10 feet. waves occasionally around 13 feet. 
.tonight...northwest winds 15 to 25 knots. a chance of snow and
rain showers in the evening, then a chance of snow showers after
midnight. waves 5 to 9 feet subsiding to 4 to 7 feet. waves
occasionally around 11 feet. 
.tuesday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.tuesday night...west winds 5 to 10 knots becoming north. waves
1 to 2 feet. 
.wednesday...north winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.thursday...southeast winds 10 knots or less becoming south and
increasing to 15 to 20 knots. rain showers likely thursday night.
waves 1 to 3 feet. 
.friday...southwest winds 15 to 20 knots becoming northwest.
showers. waves 2 to 4 feet building to 3 to 5 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 am est mon nov 17 2025

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 28.8 low will make its way across the canadian 
maritimes today, before withdrawing northward across labrador on 
tuesday. a 30.3 inch high will then build from the upper great lakes 
tuesday to the lower great lakes wednesday, then to new england 
thursday. a 29.6 inch low over central ontario will then make its 
way to quebec friday, while pushing its trailing cold front across 
the lake.


loz064-065-172200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est mon nov 17 2025

.this afternoon...northwest winds to 30 knots. a chance of snow
showers late. waves 7 to 10 feet. waves occasionally around
13 feet. 
.tonight...northwest winds 15 to 25 knots. waves 6 to 10 feet
subsiding to 5 to 8 feet. waves occasionally around 13 feet. 
.tuesday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.tuesday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 3 feet subsiding to 1 foot or less. 
.wednesday...northwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.thursday...southeast winds 5 to 15 knots becoming south 15 to
20 knots. rain showers likely thursday night. waves 1 to 3 feet. 
.friday...south winds 15 to 25 knots becoming northwest. rain
showers. waves 3 to 6 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
331 pm est mon nov 17 2025

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...
high pressure 30.20 inches builds over lake erie tonight, followed
by a trough averaging 30.00 inches tuesday. high pressure 30.10
inches builds back in for tuesday night through wednesday night. a
cold front tracks through the region late thursday night through
early friday.



lez061-166>169-180330-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm 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-
331 pm est mon nov 17 2025

.tonight...northwest winds 15 to 25 knots diminishing to 10 to
15 knots. a slight chance of rain early. waves 3 to 6 feet
subsiding to 1 to 3 feet. 
.tuesday...west winds 10 knots or less becoming south. a slight
chance of rain late in the morning. a chance of rain in the
afternoon. waves 1 to 3 feet subsiding to 1 foot or less. 
.tuesday night...southeast winds 5 to 10 knots becoming
northeast. a chance of rain in the evening. waves 1 foot or less.
.wednesday...northeast winds 5 to 10 knots. waves 1 foot or less.
.wednesday night...northeast winds 10 knots or less becoming
east. waves 1 foot or less. 
.thursday...southeast winds 10 knots or less becoming southwest
10 to 15 knots. rain likely thursday night. waves 1 to 3 feet. 
.friday...west winds 15 to 20 knots becoming north 10 to
15 knots. rain likely during the day, then a chance of rain
friday night. waves 2 to 4 feet. 
.saturday...north winds 5 to 15 knots becoming southwest. a
chance of rain during the day. waves 1 to 3 feet. 

$$