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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est mon jan 12 2026

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...the axis of surface-based ridging attendant to a 30.5 
inch high over the tennessee valley will slide out across new 
england today...while a surface trough averaging 29.8 inches passes 
just to the north of the lake. another 29.3 inch low will then move 
from western ontario tuesday to southern quebec wednesday. this 
system will push its trailing cold front across the lake wednesday 
night, when a secondary 29.4 inch coastal low will develop along the 
mid-atlantic coastline. this secondary low will then track northeast 
to the gulf of maine thursday and to newfoundland friday...while 
30.0 inch high pressure slowly builds east across the great lakes.


loz062-130400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est mon jan 12 2026

.tonight...southwest winds to 30 knots diminishing to 15 to
20 knots. waves 7 to 10 feet subsiding to 5 to 8 feet. waves
occasionally around 13 feet. 
.tuesday...southwest winds 15 to 25 knots becoming south to
30 knots. a chance of rain showers late. waves 3 to 5 feet
building to 4 to 7 feet. waves occasionally around 9 feet. 
.tuesday night...southwest winds to 30 knots. a chance of rain
showers. waves 5 to 9 feet. waves occasionally around 11 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west. a
chance of rain showers in the morning, then a chance of rain and
snow showers in the afternoon. waves 4 to 7 feet subsiding to
3 to 5 feet. waves occasionally around 9 feet. 
.wednesday night...northwest winds 15 to 25 knots becoming north.
snow and rain showers likely in the evening, then snow showers
likely overnight. waves 3 to 5 feet. 
.thursday...northwest winds 15 to 20 knots. snow showers likely
during the day, then a chance of snow showers thursday night.
waves 3 to 5 feet. 
.friday...west winds 15 to 20 knots becoming southwest. a chance
of snow showers friday night. waves 2 to 4 feet. 
.saturday...southwest winds 15 to 20 knots. a chance of snow
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 mon jan 12 2026

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...the axis of surface-based ridging attendant to a 30.5 
inch high over the tennessee valley will slide out across new 
england today...while a surface trough averaging 29.8 inches passes 
just to the north of the lake. another 29.3 inch low will then move 
from western ontario tuesday to southern quebec wednesday. this 
system will push its trailing cold front across the lake wednesday 
night, when a secondary 29.4 inch coastal low will develop along the 
mid-atlantic coastline. this secondary low will then track northeast 
to the gulf of maine thursday and to newfoundland friday...while 
30.0 inch high pressure slowly builds east across the great lakes.


loz063>065-130400-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm est mon jan 12 2026

.tonight...west winds to 30 knots diminishing to 15 to 25 knots.
lake effect snow showers likely early, then a chance of lake
effect snow showers late this evening. a chance of rain and snow
showers after midnight. waves 7 to 11 feet subsiding to 5 to
9 feet. waves occasionally around 14 feet. 
.tuesday...southwest winds 15 to 20 knots becoming south. a
chance of rain showers late. waves 4 to 7 feet subsiding to 3 to
5 feet. waves occasionally around 9 feet. 
.tuesday night...south winds 15 to 25 knots becoming southwest.
rain showers likely. waves 3 to 5 feet building to 5 to 8 feet.
waves occasionally around 10 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. rain showers likely in the morning, then rain showers
likely with a chance of snow showers in the afternoon. waves 4 to
7 feet subsiding to 2 to 4 feet. waves occasionally around
9 feet. 
.wednesday night...west winds 10 to 15 knots becoming north and
increasing to 15 to 25 knots. rain and snow showers likely in the
evening, then snow showers overnight. waves 2 to 4 feet building
to 3 to 6 feet. 
.thursday...north winds 15 to 25 knots becoming northwest. snow
showers during the day, then a chance of snow showers thursday
night. waves 3 to 6 feet. 
.friday...west winds 15 to 20 knots becoming south. a chance of
snow showers. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.saturday...south winds 15 to 20 knots becoming southwest. a
chance of snow showers. waves 3 to 5 feet building to 3 to
6 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
347 pm est mon jan 12 2026

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 ridge averaging 30.20 tonight will give way to a warm front
tuesday followed by a pair of cold fronts, one tuesday night and a
stronger one on wednesday with pressure down to 29.60 inches. a
ridge builds in thursday and thursday night averaging 30.00
inches.



lez061-130330-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
347 pm est mon jan 12 2026

.tonight...southwest winds to 30 knots diminishing to 15 to
20 knots. waves 8 to 11 feet subsiding to 4 to 6 feet. waves
occasionally around 14 feet. 
.tuesday...southwest winds 15 to 25 knots. a chance of rain late.
waves 3 to 6 feet. 
.tuesday night...southwest winds to 30 knots. a chance of rain.
waves 5 to 9 feet. waves occasionally around 11 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. rain and snow likely. waves 3 to 6 feet subsiding to
2 to 4 feet. 
.wednesday night...northwest winds 10 to 15 knots increasing to
15 to 20 knots. snow likely. waves 2 to 4 feet. 
.thursday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of snow during the day. waves 2 to 4 feet. 
.friday...southwest winds 15 to 20 knots. a chance of snow. waves
3 to 5 feet. 
.saturday...southwest winds 15 to 20 knots. snow likely during
the day, then a chance of snow saturday night. waves 3 to 6 feet
building to 5 to 7 feet. waves occasionally around 9 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
347 pm est mon jan 12 2026

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 ridge averaging 30.20 tonight will give way to a warm front
tuesday followed by a pair of cold fronts, one tuesday night and a
stronger one on wednesday with pressure down to 29.60 inches. a
ridge builds in thursday and thursday night averaging 30.00
inches.



lez166>169-130330-
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-
347 pm est mon jan 12 2026

.tonight...southwest winds to 30 knots diminishing to 15 to
25 knots. waves 8 to 11 feet subsiding to 3 to 6 feet. waves
occasionally around 14 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest to
30 knots. a slight chance of rain early in the afternoon. a
chance of rain late. waves 3 to 6 feet building to 5 to 8 feet.
waves occasionally around 10 feet. 
.tuesday night...southwest winds 15 to 25 knots. a chance of
rain. waves 5 to 8 feet. waves occasionally around 10 feet. 
.wednesday...southwest winds 15 to 25 knots becoming northwest.
snow with rain likely. waves 3 to 6 feet. 
.wednesday night...northwest winds to 30 knots. snow likely.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.thursday...northwest winds to 30 knots becoming west 15 to
25 knots. a chance of snow during the day. waves 5 to 8 feet
subsiding to 3 to 5 feet. waves occasionally around 10 feet. 
.friday...southwest winds 15 to 25 knots. a chance of snow. waves
3 to 6 feet. 
.saturday...southwest winds 15 to 25 knots becoming west. snow
likely during the day, then a chance of snow saturday night.
waves 3 to 6 feet building to 4 to 7 feet. waves occasionally
around 9 feet. 

$$