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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu nov 20 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 30.3 inch high over the lower great lakes will slide 
out across new england through tonight. a 29.5 inch surface low near 
james bay will swing a cold front east across tomorrow afternoon and 
evening, with a 30.1 inch high building over the ohio valley and 
lower great lakes saturday. a 29.5 inch low will then move from 
northern ontario to james bay sunday, while pushing its cold front 
across the lake through the afternoon hours. a 30.2 inch high is 
then forecast to build across the ohio valley monday. on tuesday a 
29.5 inch low to the north of lake superior will swing a cold front 
across the lake by tuesday night.


loz062-211000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est thu nov 20 2025

.overnight...southwest winds 5 to 15 knots increasing to
15 to 20 knots. waves 1 to 3 feet. 
.friday...southwest winds 15 to 20 knots becoming west. waves
3 to 6 feet. 
.friday night...west winds 10 to 15 knots becoming northwest.
waves 2 to 4 feet. 
.saturday...northwest winds 5 to 15 knots. waves 1 to 2 feet. 
.saturday night...northwest winds 5 to 10 knots becoming
southwest. waves around 1 foot. 
.sunday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.monday...west winds 10 to 15 knots becoming southeast. a chance
of showers monday night. waves 1 to 3 feet. 
.tuesday...southeast winds 10 to 15 knots becoming southwest
15 to 20 knots. rain during the day, then showers likely tuesday
night. waves 1 to 3 feet building to 2 to 4 feet. 

$$

fzus61 kbuf 210302
glflo 
expires:202511211000;;227572

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu nov 20 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 30.3 inch high over the lower great lakes will slide 
out across new england through tonight. a 29.5 inch surface low near 
james bay will swing a cold front east across tomorrow afternoon and 
evening, with a 30.1 inch high building over the ohio valley and 
lower great lakes saturday. a 29.5 inch low will then move from 
northern ontario to james bay sunday, while pushing its cold front 
across the lake through the afternoon hours. a 30.2 inch high is 
then forecast to build across the ohio valley monday. on tuesday a 
29.5 inch low to the north of lake superior will swing a cold front 
across the lake by tuesday night.


loz063-211000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est thu nov 20 2025

.overnight...south winds 5 to 15 knots becoming southwest.
waves 1 to 3 feet. 
.friday...southwest winds 15 to 20 knots becoming west. waves
2 to 4 feet building to 3 to 6 feet. 
.friday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.saturday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 
.saturday night...northwest winds 5 to 10 knots becoming west.
waves 1 to 2 feet. 
.sunday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.monday...northwest winds 15 to 20 knots becoming southeast.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...southeast winds 15 to 20 knots becoming south. rain
likely during the day, then showers likely tuesday night. waves
2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet. 

$$

fzus61 kbuf 210302
glflo 
expires:202511211000;;227573

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu nov 20 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 30.3 inch high over the lower great lakes will slide 
out across new england through tonight. a 29.5 inch surface low near 
james bay will swing a cold front east across tomorrow afternoon and 
evening, with a 30.1 inch high building over the ohio valley and 
lower great lakes saturday. a 29.5 inch low will then move from 
northern ontario to james bay sunday, while pushing its cold front 
across the lake through the afternoon hours. a 30.2 inch high is 
then forecast to build across the ohio valley monday. on tuesday a 
29.5 inch low to the north of lake superior will swing a cold front 
across the lake by tuesday night.


loz064-065-211000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est thu nov 20 2025

.overnight...south winds 10 to 15 knots becoming southwest
15 to 20 knots. waves 2 feet or less building to 2 to 4 feet. 
.friday...southwest winds 15 to 25 knots becoming west. a chance
of showers late in the morning. waves 3 to 6 feet building to
4 to 7 feet. waves occasionally around 9 feet. 
.friday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.saturday...north winds 5 to 15 knots becoming northwest. waves
1 to 3 feet. 
.saturday night...northwest winds 5 to 10 knots becoming west.
waves 2 feet or less. 
.sunday...southwest winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of rain showers. waves 1 to 3 feet building to
3 to 5 feet. 
.monday...northwest winds 15 to 20 knots becoming southeast.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...southeast winds 15 to 25 knots becoming south. rain
likely during the day, then showers tuesday night. waves 2 to
4 feet building to 3 to 6 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
939 pm est thu nov 20 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 cold front will move east across lake erie late friday and 
friday evening with high pressure 30.20 inches building over the 
great lakes in its wake on saturday. a warm front lift across the 
lake late saturday into sunday, followed by another cold front on 
late sunday into early monday.


lez061-168-169-210915-
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-
939 pm est thu nov 20 2025

.overnight...southwest winds 10 to 15 knots increasing to
15 to 20 knots. waves 2 feet or less building to 2 to 4 feet. 
.friday...southwest winds 15 to 20 knots becoming west. waves
2 to 4 feet building to 3 to 5 feet. 
.friday night...west winds 10 to 15 knots becoming north. waves
2 to 4 feet subsiding to 1 to 2 feet. 
.saturday...north winds 5 to 15 knots becoming northwest. waves
1 to 3 feet subsiding to 1 foot or less. 
.saturday night...northwest winds 5 to 15 knots becoming
southwest. waves 2 feet or less. 
.sunday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.monday...west winds 5 to 15 knots becoming southeast. a chance
of rain monday night. waves 1 to 3 feet. 
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. rain. waves 2 to 4 feet building to 3 to 5 feet. 

$$