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open lake forecast for lake ontario
national weather service buffalo ny
402 am est tue dec 2 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 29.6 inch surface low off the carolina coastline 
this morning will deepen to 28.9 inches over southern atlantic 
canada by early wednesday morning before going out to sea. a 30.2 
inch surface high will build across the ohio valley and lower great 
lakes later wednesday into thursday morning before pushing off the 
coast. a large 29.2 inch surface low near hudson bay will push its 
cold front across the lake wednesday night, with another 30.4 inch 
high building in its wake thursday night. the high will then quickly 
move east of the lake friday. another cold front will cross the lake 
late saturday and saturday night, this from a 29.3 inch low near 
northern james bay.


loz062-021600-
lake ontario open waters from the niagara river to hamlin beach-
402 am est tue dec 2 2025

.today...southeast winds 5 to 10 knots becoming north. snow this
morning, then a chance of snow early this afternoon. a chance of
snow showers late. waves 2 feet or less. 
.tonight...north winds 5 to 15 knots becoming west. waves 1 to
2 feet. 
.wednesday...southwest winds 15 to 25 knots increasing to
30 knots. waves 1 to 3 feet building to 5 to 9 feet. waves
occasionally around 11 feet. 
.wednesday night...southwest winds to 30 knots becoming west.
snow and rain showers. waves 7 to 10 feet. waves occasionally
around 13 feet. 
.thursday...northwest winds to 30 knots becoming southwest and
diminishing to 10 to 15 knots. snow showers during the day. waves
6 to 10 feet subsiding to 2 to 4 feet. waves occasionally around
13 feet. 
.friday...southwest winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 5 feet. 
.saturday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of snow showers. waves 3 to 5 feet
subsiding to 2 to 4 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am est tue dec 2 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 29.6 inch surface low off the carolina coastline 
this morning will deepen to 28.9 inches over southern atlantic 
canada by early wednesday morning before going out to sea. a 30.2 
inch surface high will build across the ohio valley and lower great 
lakes later wednesday into thursday morning before pushing off the 
coast. a large 29.2 inch surface low near hudson bay will push its 
cold front across the lake wednesday night, with another 30.4 inch 
high building in its wake thursday night. the high will then quickly 
move east of the lake friday. another cold front will cross the lake 
late saturday and saturday night, this from a 29.3 inch low near 
northern james bay.


loz063-021600-
lake ontario open waters from hamlin beach to sodus bay-
402 am est tue dec 2 2025

.today...southeast winds 5 to 15 knots becoming north. snow this
morning, then a chance of snow early this afternoon. a chance of
snow showers late. waves 2 feet or less. 
.tonight...north winds 5 to 15 knots becoming west. a chance of
snow showers early. a chance of snow showers late. waves 1 to
2 feet. 
.wednesday...southwest winds 10 to 15 knots increasing to 15 to
25 knots. waves 1 to 3 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.wednesday night...southwest winds to 30 knots becoming west.
snow and rain showers. waves 5 to 8 feet building to 7 to
11 feet. waves occasionally around 14 feet. 
.thursday...northwest winds to 30 knots becoming southwest and
diminishing to 10 to 15 knots. snow showers during the day, then
a chance of snow showers thursday night. waves 9 to 13 feet
subsiding to 3 to 6 feet. waves occasionally around 16 feet. 
.friday...southwest winds 15 to 20 knots. a chance of snow
showers during the day. waves 2 to 4 feet. 
.saturday...southwest winds 15 to 20 knots becoming northwest. a
chance of snow showers. waves 3 to 6 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am est tue dec 2 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 29.6 inch surface low off the carolina coastline 
this morning will deepen to 28.9 inches over southern atlantic 
canada by early wednesday morning before going out to sea. a 30.2 
inch surface high will build across the ohio valley and lower great 
lakes later wednesday into thursday morning before pushing off the 
coast. a large 29.2 inch surface low near hudson bay will push its 
cold front across the lake wednesday night, with another 30.4 inch 
high building in its wake thursday night. the high will then quickly 
move east of the lake friday. another cold front will cross the lake 
late saturday and saturday night, this from a 29.3 inch low near 
northern james bay.


loz064-065-021600-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 am est tue dec 2 2025

.today...southeast winds 5 to 15 knots becoming northeast. snow
this morning, then a chance of snow early this afternoon. a
chance of snow showers late. waves 2 feet or less. 
.tonight...north winds 5 to 15 knots becoming northwest. waves
2 feet or less. 
.wednesday...southwest winds 10 to 15 knots increasing to
30 knots. a chance of snow showers in the afternoon. waves 2 feet
or less building to 5 to 8 feet. waves occasionally around
10 feet. 
.wednesday night...southwest winds to 30 knots becoming west.
snow and rain showers. waves 6 to 10 feet building to 8 to
12 feet. waves occasionally around 15 feet. 
.thursday...northwest winds to 30 knots becoming west and
diminishing to 10 to 15 knots. snow showers during the day, then
a chance of snow showers thursday night. waves 9 to 13 feet
subsiding to 3 to 6 feet. waves occasionally around 16 feet. 
.friday...south winds 15 to 20 knots. a chance of snow showers.
waves 3 to 5 feet. 
.saturday...southwest winds 15 to 25 knots becoming northwest. a
chance of snow showers. waves 3 to 6 feet building to 4 to
7 feet, then subsiding to 3 to 6 feet. waves occasionally around
9 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 am est tue dec 2 2025


slz022-021600-
saint lawrence river from cape vincent to ogdensburg-
402 am est tue dec 2 2025

.today...southeast winds 10 knots or less becoming northeast.
snow this morning, then a chance of snow early this afternoon. 
.tonight...north winds 5 to 10 knots becoming light and variable.
mostly cloudy. 
.wednesday...south winds 10 knots or less becoming southwest and
increasing to 15 to 20 knots. a chance of snow showers in the
afternoon. 
.wednesday night...southwest winds 15 to 20 knots becoming west.
snow and rain showers. 
.thursday...northwest winds 10 to 15 knots becoming south less
than 10 knots. snow showers during the day. 
.friday...south winds 5 to 15 knots. a chance of snow showers
friday night. 
.saturday...south winds 5 to 10 knots becoming northwest. a
chance of snow showers. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
337 am est tue dec 2 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 weak trough averaging 30.00 inches will move across the lake 
today, followed by high pressure 30.20 inches building across the
ohio valley on wednesday. low pressure 29.70 inches will drag a 
strong cold front east across the lake wednesday night into 
thursday, followed by another area of high pressure 30.50 inches 
for late thursday into friday. another cold front will move east
across the lake on saturday.


lez061-167>169-021515-
ripley to buffalo ny extending from 5nm 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-
337 am est tue dec 2 2025

.today...northeast winds 5 to 15 knots becoming north. snow this
morning, then a chance of snow showers early this afternoon. a
slight chance of snow showers late. waves 2 feet or less. 
.tonight...northwest winds 10 to 15 knots becoming west 15 to
20 knots. a slight chance of snow showers early. a slight chance
of snow showers after midnight. waves 1 to 3 feet building to
3 to 5 feet. 
.wednesday...southwest winds 15 to 25 knots increasing to
30 knots. waves 3 to 6 feet building to 6 to 10 feet. waves
occasionally around 13 feet. 
.wednesday night...southwest winds to 30 knots becoming west.
rain and snow showers in the evening, then snow showers
overnight. waves 7 to 11 feet. waves occasionally around 14 feet.
.thursday...northwest winds 15 to 25 knots becoming southwest and
diminishing to 10 to 15 knots. waves 5 to 8 feet subsiding to
2 to 3 feet. waves occasionally around 10 feet. 
.friday...southwest winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 6 feet. 
.saturday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of snow showers. waves 3 to 6 feet
subsiding to 2 to 3 feet. 

$$