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open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun dec 7 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 weak 29.9 inch surface low will slowly cross the lake 
through the afternoon hours. another 30.4 inch high will move across 
the region monday through monday night, before moving off the east 
coast tuesday. a 29.5 inch low will move across the upper great 
lakes tuesday, then a stronger low averaging 29.3 inches will 
approach the region tuesday night and potentially move northwest of 
the lake wednesday. a 29.9 inch high is expected to move into the 
great lakes region thursday.


loz062-072200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est sun dec 7 2025

.this afternoon...southwest winds 5 to 15 knots becoming west
15 to 20 knots. snow. waves 1 to 2 feet building to 2 to 4 feet. 
.tonight...northwest winds 15 to 20 knots becoming north. waves
3 to 5 feet. 
.monday...north winds 5 to 15 knots becoming west less than
10 knots. waves 2 to 4 feet subsiding to 1 foot or less. 
.monday night...southwest winds 5 to 15 knots becoming south.
waves 2 feet or less. 
.tuesday...southwest gales to 35 knots diminishing to 15 to
25 knots. snow and rain showers. waves 4 to 7 feet building to
7 to 10 feet, then subsiding to 4 to 7 feet. waves occasionally
around 13 feet. 
.wednesday...south winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. rain showers during the day, then
rain showers with a chance of snow showers wednesday night. waves
5 to 8 feet. waves occasionally around 10 feet. 
.thursday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow showers. waves 3 to 6 feet subsiding
to 2 to 4 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun dec 7 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 weak 29.9 inch surface low will slowly cross the lake 
through the afternoon hours. another 30.4 inch high will move across 
the region monday through monday night, before moving off the east 
coast tuesday. a 29.5 inch low will move across the upper great 
lakes tuesday, then a stronger low averaging 29.3 inches will 
approach the region tuesday night and potentially move northwest of 
the lake wednesday. a 29.9 inch high is expected to move into the 
great lakes region thursday.


loz063-072200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est sun dec 7 2025

.this afternoon...southwest winds 5 to 15 knots becoming west
15 to 20 knots. snow. waves 1 to 3 feet. 
.tonight...northwest winds 15 to 20 knots becoming north. a
chance of snow early, then a chance of snow showers late in the
evening. waves 3 to 6 feet. 
.monday...north winds 15 to 20 knots becoming northwest 5 to
15 knots. waves 3 to 5 feet subsiding to 1 foot or less. 
.monday night...west winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest. snow
showers likely during the day, then rain showers with snow
showers likely tuesday night. waves 3 to 5 feet building to 4 to
7 feet. waves occasionally around 9 feet. 
.wednesday...south winds to 30 knots becoming northwest. rain
showers during the day, then rain showers with a chance of snow
showers wednesday night. waves 3 to 6 feet building to 6 to
9 feet. waves occasionally around 11 feet. 
.thursday...west winds 15 to 25 knots. a chance of snow showers.
waves 4 to 7 feet subsiding to 3 to 6 feet. waves occasionally
around 9 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun dec 7 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 weak 29.9 inch surface low will slowly cross the lake 
through the afternoon hours. another 30.4 inch high will move across 
the region monday through monday night, before moving off the east 
coast tuesday. a 29.5 inch low will move across the upper great 
lakes tuesday, then a stronger low averaging 29.3 inches will 
approach the region tuesday night and potentially move northwest of 
the lake wednesday. a 29.9 inch high is expected to move into the 
great lakes region thursday.


loz064-065-072200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est sun dec 7 2025

.this afternoon...southeast winds 5 to 15 knots becoming
northwest. snow. waves 1 to 3 feet. 
.tonight...northwest winds 15 to 20 knots becoming north. snow
likely early, then a chance of snow showers late in the evening.
waves 3 to 6 feet. 
.monday...north winds 15 to 20 knots becoming northwest 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday night...west winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.tuesday...south gales to 35 knots becoming southwest. snow
showers likely during the day, then rain and snow showers tuesday
night. waves 4 to 7 feet building to 7 to 10 feet, then subsiding
to 5 to 8 feet. waves occasionally around 13 feet. 
.wednesday...south winds to 30 knots becoming northwest. rain and
snow showers. waves 5 to 8 feet building to 6 to 9 feet. waves
occasionally around 11 feet. 
.thursday...northwest winds 15 to 25 knots. snow showers likely
during the day, then a chance of snow showers thursday night.
waves 5 to 8 feet subsiding to 3 to 6 feet. waves occasionally
around 10 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
1005 am est sun dec 7 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...
low pressure 30.00 inches will move through the eastern great lakes 
today, reaching new england tonight. high pressure 30.40 inches will 
enter for monday. low pressure 29.50 inches will enter for tuesday 
before a stronger low pressure system 29.10 inches enters for 
wednesday. this low will be out of the region by thursday, leaving a 
trough averaging 29.90 inches over the lake.


lez061-168-169-072115-
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-
1005 am est sun dec 7 2025

.this afternoon...west winds 10 to 15 knots becoming northwest
15 to 20 knots. snow, then a chance of snow late. waves 1 to
3 feet building to 2 to 4 feet. 
.tonight...northwest winds 15 to 20 knots becoming north. a
slight chance of snow showers in the evening. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.monday...northeast winds 5 to 15 knots becoming east. waves 1 to
3 feet. 
.monday night...southeast winds 5 to 15 knots becoming south
15 to 20 knots. waves 1 to 3 feet. 
.tuesday...southwest gales to 35 knots diminishing to 30 knots.
snow and rain showers likely during the day, then rain showers
tuesday night. waves 6 to 9 feet building to 10 to 13 feet, then
subsiding to 7 to 10 feet. waves occasionally around 16 feet. 
.wednesday...southwest gales to 35 knots becoming northwest and
diminishing to 30 knots. rain showers during the day, then snow
and rain showers likely wednesday night. waves 10 to 15 feet
subsiding to 6 to 9 feet. waves occasionally around 19 feet. 
.thursday...west winds 15 to 20 knots becoming northwest. a
chance of snow showers. waves 3 to 6 feet subsiding to 2 to
4 feet. 

$$