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open lake forecast for lake ontario
national weather service buffalo ny
402 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 28.9 low over maine will make its way across the 
canadian maritimes through monday, 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.


loz062-171600-
lake ontario open waters from the niagara river to hamlin beach-
402 am est mon nov 17 2025

.today...northwest winds 20 to 25 knots. a chance of snow showers
through early afternoon. 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
402 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 28.9 low over maine will make its way across the 
canadian maritimes through monday, 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.


loz063-171600-
lake ontario open waters from hamlin beach to sodus bay-
402 am est mon nov 17 2025

.today...northwest winds to 30 knots. a chance of snow showers.
lake effect rain showers likely with a chance of lake effect snow
showers late. waves 7 to 10 feet. waves occasionally around
13 feet. 
.tonight...northwest winds 15 to 25 knots. rain showers likely
early, then a chance of snow and rain showers late in the
evening. 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
402 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 28.9 low over maine will make its way across the 
canadian maritimes through monday, 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.


loz064-065-171600-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 am est mon nov 17 2025

.today...northwest winds to 30 knots. 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
344 am 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...
a trough averaging 29.80 inches will linger over the eastern
fringe of lake erie today as high pressure 30.20 inches builds
east over the western and central basins of the lake. the high 
will exit to the east tonight into tuesday as low pressure 29.80 
inches moves east from the middle mississippi valley into the ohio
valley. high pressure 30.20 inches will build in from the north 
wednesday before low pressure 29.80 inches moves northeast from 
the southern plains and into the midwest thursday into friday.


lez061-166>169-171530-
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-
344 am est mon nov 17 2025

.today...northwest winds to 30 knots diminishing to 15 to
25 knots. snow with a slight chance of rain this morning, then a
chance of rain this afternoon. waves 5 to 9 feet subsiding to
3 to 6 feet. waves occasionally around 11 feet. 
.tonight...northwest winds 15 to 25 knots diminishing to 10 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming south 10 knots
or less. a chance of rain. waves 2 feet or less. 
.tuesday night...east winds 5 to 10 knots becoming northeast. a
chance of rain in the evening. waves 1 foot or less. 
.wednesday...northeast winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.thursday...southeast winds 10 knots or less becoming south and
increasing to 15 to 20 knots. rain thursday night. waves 2 feet
or less building to 2 to 4 feet. 
.friday...west winds 15 to 20 knots becoming north. rain likely
during the day, then a chance of rain friday night. waves 3 to
6 feet building to 4 to 7 feet, then subsiding to 3 to 5 feet.
waves occasionally around 9 feet. 

$$