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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est sun nov 16 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.


loz062-170400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est sun nov 16 2025

...gale warning in effect until 1 am est monday...

.tonight...northwest winds to 30 knots. a chance of snow and rain
showers early, then a chance of snow showers from late evening
on. waves 7 to 11 feet subsiding to 6 to 9 feet. waves
occasionally around 14 feet. 
.monday...northwest winds to 30 knots. a chance of snow showers
through early afternoon. waves 5 to 9 feet. waves occasionally
around 11 feet. 
.monday night...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 2 feet or less. 
.wednesday...northeast winds 10 knots or less becoming east.
waves 1 foot or less. 
.thursday...east winds 10 knots or less becoming southeast. rain
showers thursday night. waves 2 feet or less. 
.friday...south winds 15 to 20 knots becoming northwest. showers.
waves 1 to 3 feet building to 3 to 5 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est sun nov 16 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.


loz063-170400-
lake ontario open waters from hamlin beach to sodus bay-
402 pm est sun nov 16 2025

...gale warning in effect until 1 am est monday...

.tonight...northwest gales to 35 knots diminishing to 30 knots. a
chance of snow and rain showers early. waves 10 to 15 feet
subsiding to 8 to 12 feet. waves occasionally around 19 feet. 
.monday...northwest winds to 30 knots becoming west. a chance of
snow showers. waves 7 to 11 feet. waves occasionally around
14 feet. 
.monday night...northwest winds 15 to 25 knots. a chance of rain
and snow showers in the evening, then a chance of rain showers
overnight. 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 2 to 4 feet. 
.tuesday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 3 feet. 
.wednesday...north winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.thursday...southeast winds 10 knots or less increasing to 10 to
15 knots. rain showers likely thursday night. waves 2 feet or
less. 
.friday...south winds 15 to 20 knots becoming west. showers.
waves 2 to 4 feet building to 3 to 6 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est sun nov 16 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.


loz064-065-170400-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 pm est sun nov 16 2025

...gale warning in effect until 1 am est monday...

.tonight...northwest gales to 35 knots. a chance of snow showers.
waves 10 to 15 feet subsiding to 9 to 12 feet. waves occasionally
around 19 feet. 
.monday...northwest winds to 30 knots. a chance of snow showers
early. waves 7 to 11 feet. waves occasionally around 14 feet. 
.monday night...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 2 to 4 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 10 knots increasing to 15 to
20 knots. rain showers likely thursday night. waves 1 foot or
less building to 1 to 3 feet. 
.friday...south winds 15 to 25 knots becoming west. showers.
waves 2 to 4 feet building to 3 to 6 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 pm est sun nov 16 2025


slz022-170400-
saint lawrence river from cape vincent to ogdensburg-
402 pm est sun nov 16 2025

.tonight...west winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of snow showers. 
.monday...northwest winds 10 to 15 knots becoming west. mostly
cloudy. 
.monday night...west winds 5 to 15 knots. mostly cloudy. 
.tuesday...west winds 5 to 10 knots. mostly sunny. 
.tuesday night...southwest winds less than 10 knots. partly
cloudy. 
.wednesday...light and variable winds. partly to mostly cloudy. 
.thursday...light and variable winds. rain showers likely
thursday night. 
.friday...southeast winds 5 to 10 knots becoming west. rain
showers. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
253 pm est sun nov 16 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 
great lakes through monday. weak low pressure 29.90 inches will 
move east through the lower ohio valley on tuesday, followed by 
high pressure 30.20 inches building from the north on wednesday.
low pressure 29.60 inches will move from the central plains
towards the midwest on thursday into friday.



lez061-166>169-170315-
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-
253 pm est sun nov 16 2025

.tonight...northwest winds to 30 knots. rain showers with a
slight chance of thunderstorms this evening, then rain showers
likely with pockets of snow showers and thunderstorms after
midnight. snow showers with a slight chance of rain showers late.
waves 6 to 10 feet. waves occasionally around 13 feet. 
.monday...northwest winds to 30 knots diminishing to 15 to
25 knots. snow showers likely with a slight chance of rain
showers in the morning, then a slight chance of rain showers
early in the afternoon. a chance of rain showers late. waves 5 to
9 feet subsiding to 3 to 6 feet. waves occasionally around
11 feet. 
.monday night...northwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. waves 3 to 6 feet subsiding to
1 to 3 feet. 
.tuesday...west winds 5 to 10 knots becoming south. a chance of
rain. waves 2 feet or less. 
.tuesday night...east winds 5 to 10 knots. a chance of rain in
the evening. waves 1 foot or less. 
.wednesday...east winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.thursday...east 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...southwest winds 15 to 25 knots becoming northwest. 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. 

winds and waves higher in and near thunderstorms.

$$