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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est tue dec 23 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 29.8 inch surface low over central ontario this afternoon with a 
warm front draped over the lake, will slide off the southern new 
england coastline wednesday as a 29.6 inch surface low. following 
the passage of this system, a 30.3 inch high will then build across 
the lake wednesday, sliding off the atlantic coastline thursday. a 
weak 29.8 inch surface low will slide across southern quebec 
thursday with its associated cold front dropping southward across 
the lake. following this front, a strong 30.5 inch surface high over 
ontario thursday will slide over the lake thursday night and then 
linger just to the east of the lake friday. a compact 29.6 inch 
surface low will slide well south of the lake across ohio and 
southern pennsylvania friday night into saturday. another 29.5 inch 
surface low will pass by to the northeast of the lake sunday.


loz062-241000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est tue dec 23 2025

.overnight...west winds to 30 knots becoming northwest.
waves 5 to 8 feet building to 7 to 10 feet. waves occasionally
around 13 feet. 
.wednesday...northwest winds 15 to 25 knots becoming west and
diminishing to 5 to 10 knots in the afternoon. waves 6 to 9 feet
subsiding to 1 to 3 feet. waves occasionally around 11 feet. 
.wednesday night...southwest winds 10 knots or less becoming
west. waves 1 foot or less. 
.thursday...west winds 10 to 15 knots becoming north. waves 1 to
3 feet. 
.thursday night...north winds 15 to 20 knots becoming east. waves
2 to 4 feet building to 3 to 5 feet. 
.friday...east winds to 30 knots diminishing to 15 to 20 knots.
snow. waves 4 to 7 feet building to 6 to 9 feet, then subsiding
to 4 to 7 feet. waves occasionally around 11 feet. 
.saturday...east winds 10 to 15 knots becoming southeast. a
chance of rain showers saturday night. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.sunday...south winds 15 to 20 knots becoming west and increasing
to 40 knot gales. rain showers during the day, then snow and rain
showers likely sunday night. waves 2 to 4 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 tue dec 23 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 29.8 inch surface low over central ontario this afternoon with a 
warm front draped over the lake, will slide off the southern new 
england coastline wednesday as a 29.6 inch surface low. following 
the passage of this system, a 30.3 inch high will then build across 
the lake wednesday, sliding off the atlantic coastline thursday. a 
weak 29.8 inch surface low will slide across southern quebec 
thursday with its associated cold front dropping southward across 
the lake. following this front, a strong 30.5 inch surface high over 
ontario thursday will slide over the lake thursday night and then 
linger just to the east of the lake friday. a compact 29.6 inch 
surface low will slide well south of the lake across ohio and 
southern pennsylvania friday night into saturday. another 29.5 inch 
surface low will pass by to the northeast of the lake sunday.


loz063-241000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est tue dec 23 2025

.overnight...west winds to 30 knots becoming northwest.
waves 7 to 10 feet building to 9 to 13 feet. waves occasionally
around 16 feet. 
.wednesday...northwest winds to 30 knots diminishing to 5 to
15 knots. waves 8 to 11 feet subsiding to 1 to 3 feet. waves
occasionally around 14 feet. 
.wednesday night...west winds 5 to 15 knots becoming southwest.
waves 1 to 2 feet. 
.thursday...west winds 10 to 15 knots becoming north 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday night...north winds 15 to 20 knots becoming northeast.
waves 3 to 5 feet. 
.friday...east winds 15 to 25 knots becoming southeast. snow.
waves 3 to 6 feet building to 4 to 7 feet, then subsiding to 3 to
6 feet. waves occasionally around 9 feet. 
.saturday...east winds 15 to 20 knots becoming southeast. a
chance of rain showers saturday night. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.sunday...south winds 15 to 25 knots becoming west and increasing
to 40 knot gales. rain showers during the day, then snow showers
with rain showers likely sunday night. waves 3 to 6 feet building
to 15 to 20 feet. waves occasionally around 26 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est tue dec 23 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 29.8 inch surface low over central ontario this afternoon with a 
warm front draped over the lake, will slide off the southern new 
england coastline wednesday as a 29.6 inch surface low. following 
the passage of this system, a 30.3 inch high will then build across 
the lake wednesday, sliding off the atlantic coastline thursday. a 
weak 29.8 inch surface low will slide across southern quebec 
thursday with its associated cold front dropping southward across 
the lake. following this front, a strong 30.5 inch surface high over 
ontario thursday will slide over the lake thursday night and then 
linger just to the east of the lake friday. a compact 29.6 inch 
surface low will slide well south of the lake across ohio and 
southern pennsylvania friday night into saturday. another 29.5 inch 
surface low will pass by to the northeast of the lake sunday.


loz064-065-241000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est tue dec 23 2025

.overnight...west winds to 30 knots becoming northwest. a
chance of rain showers. waves 7 to 10 feet
building to 10 to 13 feet. waves occasionally around 16 feet. 
.wednesday...northwest winds to 30 knots diminishing to 5 to
15 knots. waves 8 to 11 feet subsiding to 1 to 3 feet. waves
occasionally around 14 feet. 
.wednesday night...west winds 5 to 15 knots becoming south. waves
2 feet or less. 
.thursday...southwest winds 10 to 15 knots becoming north and
increasing to 15 to 25 knots. waves 1 to 3 feet building to 3 to
5 feet. 
.thursday night...north winds 15 to 25 knots becoming northeast.
waves 3 to 6 feet subsiding to 2 to 4 feet. 
.friday...east winds 15 to 25 knots becoming southeast. a chance
of snow showers during the day, then snow friday night. waves
2 to 4 feet building to 3 to 5 feet. 
.saturday...southeast winds 15 to 20 knots. a chance of snow
showers during the day, then a chance of rain showers saturday
night. waves 2 to 4 feet. 
.sunday...south winds to 30 knots becoming west and increasing to
40 knot gales. rain showers during the day, then snow and rain
showers sunday night. waves 3 to 6 feet building to 15 to
20 feet. waves occasionally around 26 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
918 pm est tue dec 23 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 cold front exits the region tonight. high pressure of 
30.40 inches builds overhead on wednesday before another low 
pressure system of 30.00 inches tracks through central ohio 
wednesday night. this is followed by high pressure of 30.50 inches
building north of the lakes later thursday. the next low of 29.80
inches will weaken as it tracks into the ohio valley on friday. 
low pressure of 29.60 inches will track northeast across lake erie
on sunday, pulling a strong cold front across the area sunday 
into monday.


lez061-167>169-240930-
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-
918 pm est tue dec 23 2025

.overnight...west winds 15 to 25 knots becoming northwest.
waves 3 to 6 feet. 
.wednesday...northwest winds 15 to 20 knots becoming south and
diminishing to 10 knots or less in the afternoon. waves 2 to
4 feet subsiding to 1 foot or less. 
.wednesday night...south winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.thursday...west winds 5 to 15 knots becoming north. waves 2 feet
or less. 
.thursday night...northeast winds 15 to 20 knots becoming east.
waves 2 to 4 feet building to 3 to 5 feet. 
.friday...east winds 15 to 20 knots becoming northeast and
diminishing to 5 to 10 knots. rain with snow likely during the
day, then a chance of rain friday night. waves 3 to 5 feet
subsiding to 2 feet or less. 
.saturday...northeast winds 5 to 10 knots becoming south and
increasing to 15 to 20 knots. rain likely saturday night. waves
2 feet or less building to 2 to 4 feet. 
.sunday...southwest winds to 30 knots becoming west and
increasing to 35 knot gales. rain likely during the day, then a
chance of snow and rain sunday night. waves 4 to 7 feet building
to 10 to 14 feet. waves occasionally around 18 feet. 

$$