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ON- Lake Ontario

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fzus61 kbuf 132102
glflo 
expires:202601140400;;296457

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est tue jan 13 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...a 29.2 inch low over lake superior will move to southern 
quebec through 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. the 
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. a 29.8 inch low and 
attendant cold fronts will then slide across the great lakes 
saturday and into new england sunday.


loz062-140400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est tue jan 13 2026

.tonight...southwest winds to 30 knots. rain showers likely
early. waves 5 to 9 feet. waves occasionally around 11 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west. a
chance of rain and snow showers early in the afternoon. a chance
of snow showers late. waves 4 to 7 feet subsiding to 3 to 5 feet.
waves occasionally around 9 feet. 
.wednesday night...northwest winds 15 to 20 knots. snow likely.
waves 4 to 7 feet. waves occasionally around 9 feet. 
.thursday...northwest winds 15 to 20 knots. lake effect snow
showers likely. waves 4 to 7 feet. waves occasionally around
9 feet. 
.thursday night...northwest winds 15 to 20 knots becoming
southwest. a chance of snow showers in the evening. waves 3 to
6 feet. 
.friday...southwest winds 15 to 25 knots increasing to 30 knots.
a chance of snow. waves 3 to 6 feet building to 4 to 7 feet.
waves occasionally around 9 feet. 
.saturday...southwest winds 20 to 25 knots. a chance of snow
showers 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. 
.sunday...west winds to 30 knots. a chance of snow during the
day, then a chance of snow showers sunday night. waves 5 to
9 feet. waves occasionally around 11 feet. 

$$
fzus61 kbuf 132102
glflo 
expires:202601140400;;296458

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est tue jan 13 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...a 29.2 inch low over lake superior will move to southern 
quebec through 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. the 
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. a 29.8 inch low and 
attendant cold fronts will then slide across the great lakes 
saturday and into new england sunday.


loz063>065-140400-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm est tue jan 13 2026

.tonight...south winds 15 to 25 knots becoming southwest. rain
showers likely early, then a chance of rain showers from late
evening on. 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. a chance of rain showers through early afternoon, then
a chance of rain and snow showers late. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.wednesday night...west winds 15 to 25 knots becoming northwest.
snow. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.thursday...northwest winds 15 to 25 knots. lake effect snow in
the morning, then lake effect snow showers likely in the
afternoon. waves 5 to 8 feet. waves occasionally around 10 feet. 
.thursday night...northwest winds 15 to 25 knots becoming west.
snow showers likely in the evening, then a chance of snow showers
overnight. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.friday...southwest winds 15 to 25 knots increasing to 30 knots.
a chance of snow. waves 3 to 6 feet building to 4 to 7 feet.
waves occasionally around 9 feet. 
.saturday...southwest winds 15 to 25 knots. a chance of snow
showers during the day, then a chance of snow saturday night.
waves 3 to 6 feet building to 5 to 8 feet. waves occasionally
around 10 feet. 
.sunday...southwest winds 15 to 25 knots becoming west to
30 knots. a chance of snow during the day, then a chance of snow
showers sunday night. waves 5 to 9 feet building to 7 to 10 feet.
waves occasionally around 13 feet. 

$$
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