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open lake forecast for lake ontario
national weather service buffalo ny
402 am est mon dec 15 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...low pressure will rapidly strengthen to 28.5 inches as 
it moves northeast across newfoundland today. meanwhile, a 30.4 inch 
high will continue to settle over the southeastern states today 
before moving off the southeast coast tuesday. a strong 29.0 inch 
low over northwest ontario province tuesday afternoon will move east 
to northern quebec by wednesday, with a trailing cold front crossing 
the lake wednesday. another strong 29.0 inch low near lake superior 
thursday will move to northern quebec by friday, with a trailing 
strong cold front crossing the lake late thursday night.


loz062-151600-
lake ontario open waters from the niagara river to hamlin beach-
402 am est mon dec 15 2025

.today...west winds 15 to 25 knots increasing to 30 knots. lake
effect snow showers likely. waves 2 to 4 feet building to 5 to
8 feet. waves occasionally around 10 feet. 
.tonight...west winds to 30 knots diminishing to 15 to 20 knots.
scattered snow showers early. waves 5 to 8 feet subsiding to 3 to
6 feet. waves occasionally around 10 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
25 knots. waves 2 to 4 feet building to 3 to 6 feet. 
.tuesday night...southwest winds to 30 knots. waves 5 to 8 feet
building to 9 to 12 feet. waves occasionally around 15 feet. 
.wednesday...southwest winds to 30 knots becoming south and
diminishing to 15 to 20 knots. waves 8 to 11 feet subsiding to
1 to 3 feet. waves occasionally around 14 feet. 
.thursday...south winds to 30 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 6 feet building to 10 to 14 feet. waves occasionally around
18 feet. 
.friday...west gales to 35 knots diminishing to 10 to 15 knots. a
chance of snow showers during the day. waves 10 to 15 feet
subsiding to 2 to 4 feet. waves occasionally around 19 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am est mon dec 15 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...low pressure will rapidly strengthen to 28.5 inches as 
it moves northeast across newfoundland today. meanwhile, a 30.4 inch 
high will continue to settle over the southeastern states today 
before moving off the southeast coast tuesday. a strong 29.0 inch 
low over northwest ontario province tuesday afternoon will move east 
to northern quebec by wednesday, with a trailing cold front crossing 
the lake wednesday. another strong 29.0 inch low near lake superior 
thursday will move to northern quebec by friday, with a trailing 
strong cold front crossing the lake late thursday night.


loz063-151600-
lake ontario open waters from hamlin beach to sodus bay-
402 am est mon dec 15 2025

.today...west winds 15 to 25 knots. lake effect snow showers
likely early, then lake effect snow. lake effect snow showers
likely late. waves 2 to 4 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.tonight...southwest winds 15 to 25 knots. scattered snow showers
through the early overnight. waves 5 to 9 feet subsiding to 3 to
6 feet. waves occasionally around 11 feet. 
.tuesday...southwest winds 15 to 20 knots. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.tuesday night...south winds 15 to 25 knots becoming southwest to
30 knots. waves 2 to 4 feet building to 6 to 9 feet. waves
occasionally around 11 feet. 
.wednesday...southwest winds to 30 knots becoming south 15 to
25 knots. waves 9 to 12 feet subsiding to 2 to 4 feet. waves
occasionally around 15 feet. 
.thursday...south winds to 30 knots becoming southwest and
increasing to 35 knot gales. rain showers likely during the day,
then rain showers with snow showers likely thursday night. waves
4 to 7 feet building to 11 to 15 feet. waves occasionally around
19 feet. 
.friday...west gales to 40 knots diminishing to 10 to 15 knots.
snow showers likely during the day. waves 13 to 17 feet subsiding
to 3 to 6 feet. waves occasionally around 22 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am est mon dec 15 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...low pressure will rapidly strengthen to 28.5 inches as 
it moves northeast across newfoundland today. meanwhile, a 30.4 inch 
high will continue to settle over the southeastern states today 
before moving off the southeast coast tuesday. a strong 29.0 inch 
low over northwest ontario province tuesday afternoon will move east 
to northern quebec by wednesday, with a trailing cold front crossing 
the lake wednesday. another strong 29.0 inch low near lake superior 
thursday will move to northern quebec by friday, with a trailing 
strong cold front crossing the lake late thursday night.


loz064-065-151600-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 am est mon dec 15 2025

.today...northwest winds 15 to 25 knots becoming west. scattered
snow showers early, then lake effect snow from late morning on.
waves 2 to 4 feet building to 5 to 8 feet. waves occasionally
around 10 feet. 
.tonight...west winds 15 to 25 knots. lake effect snow through
the early overnight, then lake effect snow showers likely late.
waves 5 to 9 feet subsiding to 4 to 7 feet. waves occasionally
around 11 feet. 
.tuesday...southwest winds 15 to 25 knots becoming south. lake
effect snow showers likely in the morning. waves 3 to 6 feet. 
.tuesday night...south winds 15 to 25 knots increasing to
30 knots. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.wednesday...southwest winds to 30 knots becoming south 15 to
25 knots. a chance of rain showers during the day. waves 9 to
13 feet subsiding to 3 to 5 feet. waves occasionally around
16 feet. 
.thursday...south winds to 30 knots becoming southwest and
increasing to 35 knot gales. rain showers likely during the day,
then rain and snow showers thursday night. waves 5 to 8 feet
building to 10 to 15 feet. waves occasionally around 19 feet. 
.friday...west gales to 35 knots becoming northwest and
diminishing to 15 to 20 knots. snow and rain showers during the
day. waves 13 to 17 feet subsiding to 3 to 6 feet. waves
occasionally around 22 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
911 am est mon dec 15 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 high pressure ridge averaging 30.30 inches builds from the west
this morning and then exits slowly eastward from the lake erie
region through tuesday night. a warm front will sweep 
northeastward across the lake tuesday before weak cold front 
sweeps eastward on wednesday. a ridge averaging 30.00 inches will
push east late wednesday before another low pressure 29.00 inches
moves across the northern great lakes region on thursday. this low
will move a strong cold front east thursday night with a trough
averaging 29.90 inches lingering into friday. 


lez061-168-169-152115-
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-
911 am est mon dec 15 2025

.this afternoon...southwest winds to 30 knots. snow showers
likely, then a chance of snow showers late. waves 5 to 8 feet.
waves occasionally around 10 feet. 
.tonight...southwest winds to 30 knots diminishing to 10 to
15 knots. a chance of snow showers. waves 6 to 9 feet subsiding
to 3 to 5 feet. waves occasionally around 11 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
25 knots. a chance of snow showers in the morning. waves 2 to
4 feet building to 3 to 6 feet. 
.tuesday night...southwest winds to 30 knots increasing to
35 knot gales. waves 5 to 9 feet building to 7 to 11 feet. waves
occasionally around 14 feet. 
.wednesday...southwest gales to 35 knots becoming south and
diminishing to 15 to 25 knots. waves 7 to 11 feet subsiding to
3 to 5 feet. waves occasionally around 14 feet. 
.thursday...south winds to 30 knots becoming west and increasing
to 40 knot gales. rain during the day, then rain with a chance of
snow thursday night. waves 5 to 8 feet building to 10 to 15 feet.
waves occasionally around 19 feet. 
.friday...west gales to 35 knots becoming southwest and
diminishing to 15 to 20 knots. a chance of snow showers during
the day. waves 10 to 14 feet subsiding to 2 to 4 feet. waves
occasionally around 18 feet. 

$$