fzus61 kbuf 112102
glflo 
expires:202512120400;;410361

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est thu dec 11 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 28.9 inch low will remain over the canadian maritimes 
through friday before moving into the north atlantic by saturday. a 
30.1 inch high will build from the upper ohio valley friday to off 
the mid atlantic coast saturday. a 29.6 inch low will then move from 
just east of lake superior saturday to southern quebec by sunday 
where it will weaken to a 29.9 inch trough. a strong 30.8 inch high 
will then build from the mid mississippi valley sunday to the 
southeast states monday while weakening to 30.5 inches.


loz062-120400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est thu dec 11 2025

.tonight...northwest winds 15 to 25 knots becoming west. a chance
of snow showers after midnight. waves 5 to 8 feet subsiding to
3 to 5 feet. waves occasionally around 10 feet. 
.friday...west winds 15 to 25 knots. waves 3 to 6 feet. 
.friday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots. a chance of snow showers overnight. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.saturday...southwest winds 15 to 20 knots becoming west and
increasing to 30 knots. lake effect snow showers. waves 2 to
4 feet building to 7 to 11 feet. waves occasionally around
14 feet. 
.saturday night...west winds to 30 knots. snow showers likely.
waves 6 to 10 feet subsiding to 5 to 7 feet. waves occasionally
around 13 feet. 
.sunday...west winds 15 to 25 knots becoming northwest. snow
showers likely during the day, then a chance of snow showers
sunday night. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.monday...west winds 15 to 20 knots increasing to 30 knots. a
chance of snow showers. waves 2 to 4 feet building to 7 to
10 feet. waves occasionally around 13 feet. 
.tuesday...west winds 15 to 25 knots becoming southwest to
30 knots. waves 5 to 8 feet. waves occasionally around 10 feet. 

$$

fzus61 kbuf 112102
glflo 
expires:202512120400;;410362

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est thu dec 11 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 28.9 inch low will remain over the canadian maritimes 
through friday before moving into the north atlantic by saturday. a 
30.1 inch high will build from the upper ohio valley friday to off 
the mid atlantic coast saturday. a 29.6 inch low will then move from 
just east of lake superior saturday to southern quebec by sunday 
where it will weaken to a 29.9 inch trough. a strong 30.8 inch high 
will then build from the mid mississippi valley sunday to the 
southeast states monday while weakening to 30.5 inches.


loz063-120400-
lake ontario open waters from hamlin beach to sodus bay-
402 pm est thu dec 11 2025

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

.tonight...northwest winds to 30 knots becoming west. a chance of
snow showers. waves 7 to 11 feet subsiding to 5 to 8 feet. waves
occasionally around 14 feet. 
.friday...west winds 15 to 25 knots. a chance of snow showers.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.friday night...west winds 15 to 20 knots becoming southwest. a
chance of snow showers overnight. waves 3 to 6 feet subsiding to
2 to 4 feet. 
.saturday...southwest winds 15 to 20 knots becoming west and
increasing to 30 knots. lake effect snow showers likely. waves
2 to 4 feet building to 10 to 13 feet. waves occasionally around
16 feet. 
.saturday night...west winds to 30 knots. lake effect snow
showers. waves 8 to 12 feet subsiding to 5 to 9 feet. waves
occasionally around 15 feet. 
.sunday...west winds 15 to 25 knots becoming northwest. snow
showers during the day, then a chance of snow showers sunday
night. waves 5 to 8 feet subsiding to 3 to 5 feet. waves
occasionally around 10 feet. 
.monday...northwest winds 15 to 25 knots becoming west to
30 knots. a chance of snow showers during the day, then snow
showers likely monday night. waves 2 to 4 feet building to 6 to
10 feet. waves occasionally around 13 feet. 
.tuesday...west winds 15 to 25 knots becoming southwest. a chance
of snow showers during the day. waves 7 to 10 feet subsiding to
3 to 5 feet. waves occasionally around 13 feet. 

$$

fzus61 kbuf 112102
glflo 
expires:202512120400;;410363

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est thu dec 11 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 28.9 inch low will remain over the canadian maritimes 
through friday before moving into the north atlantic by saturday. a 
30.1 inch high will build from the upper ohio valley friday to off 
the mid atlantic coast saturday. a 29.6 inch low will then move from 
just east of lake superior saturday to southern quebec by sunday 
where it will weaken to a 29.9 inch trough. a strong 30.8 inch high 
will then build from the mid mississippi valley sunday to the 
southeast states monday while weakening to 30.5 inches.


loz064-065-120400-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 pm est thu dec 11 2025

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

.tonight...northwest winds to 30 knots becoming west. waves 9 to
12 feet subsiding to 5 to 8 feet. waves occasionally around
15 feet. 
.friday...west winds 15 to 25 knots. a chance of snow showers.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.friday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots. a chance of snow showers. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.saturday...south winds 15 to 20 knots becoming west and
increasing to 30 knots. lake effect snow showers. waves 2 to
4 feet building to 10 to 13 feet. waves occasionally around
16 feet. 
.saturday night...west winds to 30 knots diminishing to 15 to
25 knots. lake effect snow showers. waves 10 to 13 feet subsiding
to 5 to 8 feet. waves occasionally around 16 feet. 
.sunday...west winds 15 to 25 knots becoming northwest. lake
effect snow showers during the day, then a chance of snow showers
sunday night. waves 5 to 8 feet subsiding to 3 to 6 feet. waves
occasionally around 10 feet. 
.monday...northwest winds 15 to 25 knots becoming west to
30 knots. a chance of snow showers during the day, then snow
showers monday night. waves 2 to 4 feet building to 8 to 11 feet.
waves occasionally around 14 feet. 
.tuesday...west winds 15 to 25 knots becoming south. snow showers
likely during the day. waves 7 to 10 feet subsiding to 3 to
6 feet. waves occasionally around 13 feet. 

$$

fzus61 kbuf 112102
glfsl 
expires:202512120400;;410359

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 pm est thu dec 11 2025


slz022-120400-
saint lawrence river from cape vincent to ogdensburg-
402 pm est thu dec 11 2025

.tonight...west winds 5 to 15 knots. mostly cloudy through the
early overnight, then becoming partly cloudy. 
.friday...west winds 5 to 10 knots becoming southwest. mostly
sunny. 
.friday night...west winds 10 knots or less becoming south. snow
showers likely overnight. 
.saturday...south winds 5 to 15 knots becoming southwest. lake
effect snow showers. 
.saturday night...southwest winds 5 to 15 knots. lake effect snow
showers. 
.sunday...west winds 5 to 10 knots becoming northwest. snow
showers likely during the day. 
.monday...west winds 5 to 15 knots becoming southwest. a chance
of snow showers during the day, then snow showers likely monday
night. 
.tuesday...southwest winds 5 to 15 knots becoming south 15 to
20 knots. snow showers likely during the day. 

$$

fzus61 kcle 112035
glfle 
expires:202512120330;;409257

open lake forecast for lake erie
national weather service cleveland oh
335 pm est thu dec 11 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 ridge averaging 30.00 inches will briefly build east over the 
great lakes late tonight into friday morning before low pressure 
29.80 inches moves east across the ohio valley during the day 
friday. a cold front will move east across lake erie saturday 
morning with high pressure 30.50 inches building southeast from 
the midwest on sunday to the ohio valley on monday.


lez061-168-169-120330-
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-
335 pm est thu dec 11 2025

.tonight...west winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. a chance of snow this evening,
then a slight chance of snow after midnight. waves 6 to 9 feet
subsiding to 2 to 3 feet. waves occasionally around 11 feet. 
.friday...northwest winds 5 to 15 knots becoming west. waves 1 to
3 feet. 
.friday night...southwest winds 5 to 15 knots increasing to 15 to
25 knots. snow likely overnight. waves 1 to 3 feet building to
4 to 7 feet. waves occasionally around 9 feet. 
.saturday...southwest winds to 30 knots becoming west. snow
likely. waves 6 to 10 feet building to 7 to 11 feet. waves
occasionally around 14 feet. 
.saturday night...west winds to 30 knots. snow likely in the
evening, then a chance of snow overnight. waves 5 to 9 feet.
waves occasionally around 11 feet. 
.sunday...west winds 15 to 25 knots becoming northwest. snow
likely during the day, then a chance of snow sunday night. waves
5 to 8 feet subsiding to 3 to 6 feet. waves occasionally around
10 feet. 
.monday...west winds 15 to 20 knots increasing to 30 knots. a
chance of snow monday night. waves 3 to 6 feet building to 8 to
12 feet. waves occasionally around 15 feet. 
.tuesday...southwest winds 15 to 20 knots increasing to 30 knots.
waves 5 to 8 feet building to 6 to 9 feet. waves occasionally
around 11 feet. 

$$