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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est sat dec 13 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 low will advance towards southern quebec 
tonight while weakening to 29.9 inches. a strong 30.8 inch high over 
the mid mississippi valley sunday will then settle across the 
southeast states monday and tuesday while weakening to 30.3 inches. 
meanwhile, a strong 29.1 inch low over the southern canadian 
prairies tuesday will strengthen to 28.7 inches while quickly 
shifting east across northwestern ontario and into central quebec by 
wednesday...while pushing an attendant warm front across the lake 
tuesday, followed by a cold front on wednesday.


loz062-141000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est sat dec 13 2025

.rest of tonight...west winds 20 to 25 knots. a chance of snow
showers late this evening, then snow showers likely after
midnight. waves 5 to 8 feet. waves occasionally around 10 feet. 
.sunday...west winds 20 to 25 knots becoming northwest. lake
effect snow showers likely in the morning, then a chance of snow
showers in the afternoon. waves 5 to 8 feet. waves occasionally
around 10 feet. 
.sunday night...northwest winds 15 to 20 knots becoming west
10 to 15 knots. a chance of snow showers. waves 4 to 7 feet
subsiding to 2 to 4 feet. waves occasionally around 9 feet. 
.monday...west winds 15 to 25 knots becoming southwest to
30 knots. lake effect snow showers. waves 2 to 3 feet building to
7 to 10 feet. waves occasionally around 13 feet. 
.monday night...west winds to 30 knots diminishing to 15 to
20 knots. snow showers in the evening, then a chance of snow
showers overnight. waves 6 to 10 feet subsiding to 5 to 8 feet.
waves occasionally around 13 feet. 
.tuesday...southwest winds 15 to 25 knots increasing to 30 knots.
waves 3 to 5 feet building to 7 to 10 feet. waves occasionally
around 13 feet. 
.wednesday...southwest winds to 30 knots diminishing to 10 to
15 knots. waves 6 to 10 feet subsiding to 1 to 2 feet. waves
occasionally around 13 feet. 
.thursday...southeast winds 15 to 25 knots becoming southwest and
increasing to 35 knot gales. rain showers during the day, then
rain showers with a chance of snow showers thursday night. waves
3 to 5 feet building to 10 to 13 feet. waves occasionally around
16 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est sat dec 13 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 low will advance towards southern quebec 
tonight while weakening to 29.9 inches. a strong 30.8 inch high over 
the mid mississippi valley sunday will then settle across the 
southeast states monday and tuesday while weakening to 30.3 inches. 
meanwhile, a strong 29.1 inch low over the southern canadian 
prairies tuesday will strengthen to 28.7 inches while quickly 
shifting east across northwestern ontario and into central quebec by 
wednesday...while pushing an attendant warm front across the lake 
tuesday, followed by a cold front on wednesday.


loz063-141000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est sat dec 13 2025

.rest of tonight...west winds 20 to 25 knots. lake effect snow.
waves 5 to 9 feet. waves occasionally around 11 feet. 
.sunday...west winds 20 to 25 knots becoming northwest. lake
effect snow in the morning, then lake effect snow showers likely
early in the afternoon. a chance of snow showers late. waves 6 to
9 feet. waves occasionally around 11 feet. 
.sunday night...northwest winds 15 to 25 knots. a chance of snow
showers. waves 4 to 7 feet subsiding to 3 to 5 feet. waves
occasionally around 9 feet. 
.monday...west winds 15 to 20 knots becoming southwest and
increasing to 30 knots. lake effect snow showers. waves 2 to
4 feet building to 5 to 9 feet. waves occasionally around
11 feet. 
.monday night...west winds to 30 knots diminishing to 15 to
20 knots. lake effect snow showers. waves 6 to 10 feet subsiding
to 5 to 8 feet. waves occasionally around 13 feet. 
.tuesday...west winds 15 to 25 knots becoming southwest. snow
showers likely during the day. waves 3 to 6 feet building to 5 to
8 feet. waves occasionally around 10 feet. 
.wednesday...southwest winds to 30 knots diminishing to 10 to
15 knots. waves 6 to 10 feet subsiding to 2 to 4 feet. waves
occasionally around 13 feet. 
.thursday...southeast winds to 30 knots becoming southwest and
increasing to 40 knot gales. rain showers likely during the day,
then rain showers with a chance of snow showers thursday night.
waves 3 to 6 feet building to 12 to 16 feet. waves occasionally
around 20 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est sat dec 13 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 low will advance towards southern quebec 
tonight while weakening to 29.9 inches. a strong 30.8 inch high over 
the mid mississippi valley sunday will then settle across the 
southeast states monday and tuesday while weakening to 30.3 inches. 
meanwhile, a strong 29.1 inch low over the southern canadian 
prairies tuesday will strengthen to 28.7 inches while quickly 
shifting east across northwestern ontario and into central quebec by 
wednesday...while pushing an attendant warm front across the lake 
tuesday, followed by a cold front on wednesday.


loz064-065-141000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est sat dec 13 2025

.rest of tonight...west winds 15 to 25 knots. lake effect snow
with some rumbles of thunder possible. waves 5 to 9 feet. waves
occasionally around 11 feet. 
.sunday...northwest winds 20 to 25 knots. lake effect snow with
some rumbles of thunder possible in the morning, then a chance of
snow showers in the afternoon. waves 5 to 9 feet. waves
occasionally around 11 feet. 
.sunday night...northwest 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. 
.monday...northwest winds 15 to 25 knots becoming southwest to
30 knots. lake effect snow showers. waves 2 to 4 feet building to
6 to 9 feet. waves occasionally around 11 feet. 
.monday night...southwest winds to 30 knots becoming west 15 to
25 knots. lake effect snow showers. waves 6 to 10 feet subsiding
to 5 to 8 feet. waves occasionally around 13 feet. 
.tuesday...west winds 15 to 20 knots becoming south and
increasing to 30 knots. lake effect snow showers during the day.
waves 4 to 7 feet. waves occasionally around 9 feet. 
.wednesday...southwest winds to 30 knots diminishing to 15 to
20 knots. a chance of rain showers during the day. waves 6 to
10 feet subsiding to 2 to 4 feet. waves occasionally around
13 feet. 
.thursday...southeast winds to 30 knots becoming southwest and
increasing to 40 knot gales. rain showers likely during the day,
then rain showers with snow showers likely thursday night. waves
4 to 7 feet building to 12 to 16 feet. waves occasionally around
20 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
952 pm est sat dec 13 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...
high pressure of 30.70 inches will build into the area sunday with a 
stationary trough averaging 30.00 inches across the upper great lakes.
this high pressure will weaken to 30.40 inches as it moves south of the 
area on monday. a broad ridge of 30.20 will remain through tuesday as
a series of clippers move through the great lakes wednesday through friday.
 

lez061-168-169-141000-
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-
952 pm est sat dec 13 2025

.rest of tonight...west winds 15 to 25 knots. a chance of snow
showers. waves 4 to 6 feet. 
.sunday...west winds to 30 knots becoming northwest. snow showers
likely. waves 5 to 8 feet. waves occasionally around 10 feet. 
.sunday night...northwest winds 15 to 25 knots becoming west. a
chance of snow showers. waves 5 to 8 feet subsiding to 3 to
6 feet. waves occasionally around 10 feet. 
.monday...west winds 15 to 20 knots becoming southwest and
increasing to 30 knots. snow showers likely. waves 3 to 5 feet
building to 7 to 11 feet. waves occasionally around 14 feet. 
.monday night...southwest winds to 30 knots becoming west 15 to
25 knots. a chance of snow showers. waves 8 to 12 feet subsiding
to 4 to 6 feet. waves occasionally around 15 feet. 
.tuesday...southwest winds 15 to 25 knots increasing to 35 knot
gales. waves 3 to 5 feet building to 6 to 9 feet. waves
occasionally around 11 feet. 
.wednesday...southwest winds to 30 knots becoming south and
diminishing to 15 to 20 knots. waves 6 to 9 feet subsiding to
3 to 6 feet. waves occasionally around 11 feet. 
.thursday...south winds to 30 knots becoming west and increasing
to 35 knot gales. rain showers during the day, then rain showers
likely with a chance of snow showers thursday night. waves 5 to
8 feet building to 10 to 14 feet. waves occasionally around
18 feet. 

$$