fzus61 kbuf 140902
glflo 
expires:202512141600;;558190

open lake forecast for lake ontario
national weather service buffalo ny
402 am est sun dec 14 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...an elongated 29.6 inch low off the new england coast 
today will rapidly deepen to 28.5 inches by monday as it reaches 
newfoundland. meanwhile, a strong 30.8 inch high over the mid 
mississippi valley today will settle across the southeast states 
monday through tuesday while weakening to 30.3 inches. a strong 29.0 
inch low over the southern canadian prairies tuesday will move east 
to northern quebec by wednesday, with a trailing cold front crossing 
the lake wednesday.


loz063-141600-
lake ontario open waters from hamlin beach to sodus bay-
402 am est sun dec 14 2025

.today...west winds 15 to 20 knots becoming northwest. lake
effect snow this morning, then lake effect snow showers likely
early this afternoon. scattered snow showers late. waves 6 to
9 feet. waves occasionally around 11 feet. 
.tonight...northwest winds 15 to 20 knots. a chance of snow
showers in the evening, then lake effect snow showers likely
after midnight. waves 4 to 7 feet subsiding to 3 to 5 feet. waves
occasionally around 9 feet. 
.monday...west winds 15 to 25 knots becoming southwest to
30 knots. lake effect snow showers. waves 2 to 4 feet building to
5 to 9 feet. waves occasionally around 11 feet. 
.monday night...west winds 15 to 25 knots. lake effect snow
showers. waves 6 to 10 feet subsiding to 5 to 8 feet. waves
occasionally around 13 feet. 
.tuesday...southwest winds 15 to 20 knots increasing to 30 knots.
snow showers likely during the day. waves 4 to 7 feet building to
5 to 8 feet. waves occasionally around 10 feet. 
.wednesday...southwest winds to 30 knots diminishing to 15 to
20 knots. waves 6 to 10 feet subsiding to 2 to 4 feet. waves
occasionally around 13 feet. 
.thursday...southeast winds to 30 knots becoming southwest and
increasing to 40 knot gales. rain showers. waves 3 to 6 feet
building to 12 to 16 feet. waves occasionally around 20 feet. 

$$

fzus61 kbuf 140902
glflo 
expires:202512141600;;558191

open lake forecast for lake ontario
national weather service buffalo ny
402 am est sun dec 14 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...an elongated 29.6 inch low off the new england coast 
today will rapidly deepen to 28.5 inches by monday as it reaches 
newfoundland. meanwhile, a strong 30.8 inch high over the mid 
mississippi valley today will settle across the southeast states 
monday through tuesday while weakening to 30.3 inches. a strong 29.0 
inch low over the southern canadian prairies tuesday will move east 
to northern quebec by wednesday, with a trailing cold front crossing 
the lake wednesday.


loz064-065-141600-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 am est sun dec 14 2025

.today...northwest winds 15 to 20 knots becoming north. lake
effect snow this morning, then scattered snow showers this
afternoon. waves 5 to 9 feet. waves occasionally around 11 feet. 
.tonight...northwest winds 15 to 20 knots. a chance of snow
showers through the early overnight, then lake effect snow
showers likely late. waves 4 to 7 feet subsiding to 3 to 6 feet.
waves occasionally around 9 feet. 
.monday...northwest winds 15 to 25 knots becoming southwest. lake
effect snow showers. waves 2 to 4 feet building to 6 to 9 feet.
waves occasionally around 11 feet. 
.monday night...west winds 15 to 25 knots. lake effect snow
showers. waves 6 to 10 feet subsiding to 5 to 8 feet. waves
occasionally around 13 feet. 
.tuesday...southwest winds 15 to 20 knots becoming south and
increasing to 30 knots. lake effect snow showers during the day.
waves 4 to 7 feet. waves occasionally around 9 feet. 
.wednesday...southwest winds to 30 knots diminishing to 15 to
20 knots. a chance of rain showers during the day. waves 6 to
10 feet subsiding to 2 to 4 feet. waves occasionally around
13 feet. 
.thursday...southeast winds to 30 knots becoming southwest and
increasing to 40 knot gales. rain showers likely during the day,
then rain showers with snow showers likely thursday night. waves
4 to 7 feet building to 12 to 16 feet. waves occasionally around
20 feet. 

$$

fzus61 kbuf 140902
glfsl 
expires:202512141600;;558187

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 am est sun dec 14 2025


slz022-141600-
saint lawrence river from cape vincent to ogdensburg-
402 am est sun dec 14 2025

.today...north winds 10 knots or less becoming northwest. mostly
cloudy through early afternoon, then becoming mostly sunny. 
.tonight...northwest winds 5 to 10 knots becoming west. mostly
cloudy. 
.monday...west winds 10 knots or less becoming southwest. lake
effect snow showers in the afternoon. 
.monday night...southwest winds 10 knots or less. snow showers in
the evening, then a chance of snow showers overnight. 
.tuesday...southwest winds 10 knots or less becoming south and
increasing to 15 to 20 knots. a chance of snow showers during the
day. 
.wednesday...southwest winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of rain showers during the day. 
.thursday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. rain showers likely during the day, then rain showers
thursday night. 

$$

fzus61 kbuf 140902
glfsl 
expires:202512141600;;558188

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 am est sun dec 14 2025


slz024-141600-
saint lawrence river from ogdensburg to saint regis-
402 am est sun dec 14 2025

.today...northwest winds 10 knots or less. mostly cloudy this
morning, then becoming mostly sunny. 
.tonight...west winds 5 to 10 knots. mostly cloudy. 
.monday...southwest winds 5 to 10 knots. a chance of snow showers
in the afternoon. 
.monday night...southwest winds 10 knots or less. a chance of
snow showers. 
.tuesday...southwest winds 5 to 10 knots increasing to 15 to
20 knots. mostly cloudy. 
.wednesday...southwest winds 15 to 20 knots diminishing to less
than 10 knots. a chance of rain showers during the day. 
.thursday...southeast winds 5 to 10 knots becoming southwest and
increasing to 15 to 25 knots. rain showers. 

$$