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open lake forecast for lake ontario
national weather service buffalo ny
1005 am est sun dec 21 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 large 30.6 inch high will then build east across the 
lake tonight, then will slide to the atlantic coastline on monday. a 
29.8 inch low just north of lake superior tuesday will pass north of 
the lake, resulting in a pair of fronts passing across the region. 
following the passage of this system, a 30.4 inch high will then 
build across the lake wednesday...then will slide off the atlantic 
coastline on christmas day.


loz062-212200-
lake ontario open waters from the niagara river to hamlin beach-
1005 am est sun dec 21 2025

...gale warning in effect until 10 pm est this evening...

.rest of today...west winds to 35 knots. a chance of snow 
showers. waves 9 to 13 feet subsiding to 8 to 11 feet. waves 
occasionally around 16 feet. 
.tonight...northwest winds 15 to 25 knots becoming west. a chance
of snow showers early. waves 6 to 9 feet subsiding to 3 to
5 feet. waves occasionally around 11 feet. 
.monday...west winds 15 to 20 knots becoming southwest. a chance
of snow in the afternoon. waves 3 to 5 feet. 
.monday night...southwest winds 10 to 15 knots becoming
southeast. snow likely in the evening, then rain and snow
overnight. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...south winds 15 to 25 knots becoming northwest to
30 knots. rain and snow during the day. waves 2 to 3 feet
building to 5 to 8 feet. waves occasionally around 10 feet. 
.wednesday...northwest winds 15 to 20 knots becoming south and
diminishing to 5 to 10 knots. a chance of rain showers wednesday
night. waves 3 to 6 feet subsiding to 1 foot or less. 
.thursday...southeast winds 5 to 15 knots becoming east 15 to
20 knots. a chance of rain showers during the day, then rain
showers likely thursday night. waves 2 feet or less building to
2 to 4 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1005 am est sun dec 21 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 large 30.6 inch high will then build east across the 
lake tonight, then will slide to the atlantic coastline on monday. a 
29.8 inch low just north of lake superior tuesday will pass north of 
the lake, resulting in a pair of fronts passing across the region. 
following the passage of this system, a 30.4 inch high will then 
build across the lake wednesday...then will slide off the atlantic 
coastline on christmas day.


loz063-212200-
lake ontario open waters from hamlin beach to sodus bay-
1005 am est sun dec 21 2025

...gale warning in effect until 10 pm est this evening...

.rest of today...west gales to 35 knots. a chance of snow 
showers, then lake effect snow late. waves 10 to 15 feet. waves 
occasionally around 19 feet. 
.tonight...northwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. a chance of snow showers in the
evening, then lake effect snow likely after midnight. waves 9 to
12 feet subsiding to 3 to 5 feet. waves occasionally around
15 feet. 
.monday...west winds 15 to 20 knots. a chance of snow showers in
the morning. waves 3 to 6 feet. 
.monday night...southwest winds 15 to 20 knots becoming south. a
chance of snow in the evening, then snow and rain overnight.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...south winds 15 to 25 knots becoming northwest to
30 knots. rain and snow during the day. waves 2 to 4 feet
building to 8 to 11 feet. waves occasionally around 14 feet. 
.wednesday...northwest winds 15 to 25 knots becoming south and
diminishing to 5 to 15 knots. a chance of rain showers wednesday
night. waves 6 to 9 feet subsiding to 1 to 2 feet. waves
occasionally around 11 feet. 
.thursday...south winds 5 to 15 knots becoming east 15 to
20 knots. a chance of rain showers during the day, then rain
showers likely thursday night. waves 1 to 3 feet building to 2 to
4 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1005 am est sun dec 21 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 large 30.6 inch high will then build east across the 
lake tonight, then will slide to the atlantic coastline on monday. a 
29.8 inch low just north of lake superior tuesday will pass north of 
the lake, resulting in a pair of fronts passing across the region. 
following the passage of this system, a 30.4 inch high will then 
build across the lake wednesday...then will slide off the atlantic 
coastline on christmas day.


loz064-065-212200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1005 am est sun dec 21 2025

...gale warning in effect until 10 pm est this evening...

.rest of today...west gales to 35 knots. lake effect snow likely,
then a chance of snow showers late. waves 11 to 16 feet. waves 
occasionally around 20 feet. 
.tonight...northwest winds to 30 knots diminishing to 15 to
25 knots. a chance of snow showers early. a chance of snow
showers after midnight, then lake effect snow likely late. waves
10 to 13 feet subsiding to 3 to 5 feet. waves occasionally around
16 feet. 
.monday...west winds 15 to 20 knots. a chance of snow showers in
the morning. waves 3 to 6 feet. 
.monday night...southwest winds 15 to 20 knots becoming south. a
chance of snow in the evening, then snow overnight. waves 3 to
5 feet subsiding to 2 to 4 feet. 
.tuesday...southeast winds 15 to 25 knots becoming northwest to
30 knots. rain and snow during the day, then a chance of rain and
snow showers tuesday night. waves 2 to 4 feet building to 8 to
12 feet. waves occasionally around 15 feet. 
.wednesday...northwest winds 15 to 25 knots becoming south and
diminishing to 5 to 15 knots. a chance of rain showers wednesday
night. waves 6 to 9 feet subsiding to 2 feet or less. waves
occasionally around 11 feet. 
.thursday...south winds 10 to 15 knots becoming southeast 15 to
20 knots. a chance of rain showers during the day, then rain
showers likely thursday night. waves 1 to 3 feet building to 2 to
4 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am est sun dec 21 2025


slz022-212200-
saint lawrence river from cape vincent to ogdensburg-
1002 am est sun dec 21 2025

.rest of today...west winds 10 to 15 knots. partly sunny late
this morning, then becoming mostly cloudy. 
.tonight...northwest winds 5 to 15 knots becoming west less than
10 knots. mostly cloudy. 
.monday...southwest winds 10 knots or less. mostly cloudy. 
.monday night...southwest winds 5 to 10 knots becoming southeast.
a chance of snow in the evening, then snow likely overnight. 
.tuesday...southeast winds 5 to 15 knots becoming northwest. snow
with rain likely during the day, then a chance of snow and rain
showers tuesday night. 
.wednesday...northwest winds 10 to 15 knots becoming south less
than 10 knots. mostly cloudy. 
.thursday...southeast winds 10 knots or less becoming east. snow
showers likely thursday night. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
249 pm est sun dec 21 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 30.50 inches will build into the region tonight
before departing to the east tomorrow. a warm front moves through monday
night followed by a cold front late tuesday. high pressure 30.30 
inches returns for tuesday night into wednesday. low pressure
29.90 inches moves across lake erie late thursday night into 
friday morning.


lez061-168-169-220330-
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-
249 pm est sun dec 21 2025

.tonight...west winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.monday...southwest winds 10 to 15 knots. a slight chance of snow
early in the afternoon. a chance of snow late. waves 2 to 4 feet.
.monday night...south winds 10 to 15 knots. a chance of rain and
snow in the evening, then rain overnight. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west. a chance
of rain in the morning. waves 1 to 3 feet building to 3 to
6 feet. 
.tuesday night...west winds 15 to 20 knots becoming northwest.
waves 3 to 6 feet. 
.wednesday...northwest winds 10 knots or less becoming south. a
chance of rain wednesday night. waves 1 to 3 feet subsiding to
1 foot or less. 
.thursday...south winds 5 to 15 knots becoming southwest. a
chance of rain. waves 1 to 3 feet. 
.friday...northwest winds 10 to 15 knots becoming northeast. rain
likely during the day, then a chance of rain friday night. waves
2 to 4 feet subsiding to 1 to 2 feet. 

$$