fzus61 kbuf 040902
glflo 
expires:202512041600;;981318

open lake forecast for lake ontario
national weather service buffalo ny
402 am est thu dec 4 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... behind a strong early morning cold front passing over 
the lake, a 30.4 inch high will build into the region its wake 
through tonight. the high will then quickly move east of the lake 
friday. another cold front will cross the lake late saturday and 
saturday night, this from a 29.3 inch low near northern james bay. 
then, another area of surface high pressure averaging 30.3 inches 
will build eastward across the great lakes through sunday, moving 
overhead monday.


loz062-041600-
lake ontario open waters from the niagara river to hamlin beach-
402 am est thu dec 4 2025

.today...west winds to 30 knots becoming northwest 15 to
25 knots. a chance of lake effect snow showers. waves 5 to
9 feet. waves occasionally around 11 feet. 
.tonight...northwest winds 15 to 20 knots becoming south 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 2 feet. 
.friday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.friday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday...southwest winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. snow showers likely with a chance
of rain showers during the day, then a chance of snow and rain
showers saturday night. waves 3 to 6 feet subsiding to 2 to
4 feet. 
.sunday...north winds 10 to 15 knots. a chance of snow showers.
waves 1 to 3 feet. 
.monday...north winds 10 to 15 knots becoming southwest. waves
1 to 2 feet. 

$$

fzus61 kbuf 040902
glflo 
expires:202512041600;;981319

open lake forecast for lake ontario
national weather service buffalo ny
402 am est thu dec 4 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... behind a strong early morning cold front passing over 
the lake, a 30.4 inch high will build into the region its wake 
through tonight. the high will then quickly move east of the lake 
friday. another cold front will cross the lake late saturday and 
saturday night, this from a 29.3 inch low near northern james bay. 
then, another area of surface high pressure averaging 30.3 inches 
will build eastward across the great lakes through sunday, moving 
overhead monday.


loz063-041600-
lake ontario open waters from hamlin beach to sodus bay-
402 am est thu dec 4 2025

.today...northwest winds to 30 knots. a chance of snow showers
early, then lake effect snow showers likely. a chance of snow
showers late. waves 6 to 9 feet building to 8 to 12 feet, then
subsiding to 7 to 10 feet. waves occasionally around 15 feet. 
.tonight...northwest winds 15 to 25 knots becoming south and
diminishing to 5 to 15 knots. waves 5 to 8 feet subsiding to 1 to
3 feet. waves occasionally around 10 feet. 
.friday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.friday night...southwest winds 10 to 15 knots becoming south
15 to 20 knots. waves 1 to 3 feet. 
.saturday...southwest winds 15 to 20 knots becoming northwest.
snow showers likely with a chance of rain showers during the day,
then a chance of snow and rain showers saturday night. waves 3 to
6 feet building to 4 to 7 feet, then subsiding to 3 to 5 feet.
waves occasionally around 9 feet. 
.sunday...north winds 10 to 15 knots. a chance of snow showers.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...north winds 10 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 

$$

fzus61 kbuf 040902
glflo 
expires:202512041600;;981320

open lake forecast for lake ontario
national weather service buffalo ny
402 am est thu dec 4 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... behind a strong early morning cold front passing over 
the lake, a 30.4 inch high will build into the region its wake 
through tonight. the high will then quickly move east of the lake 
friday. another cold front will cross the lake late saturday and 
saturday night, this from a 29.3 inch low near northern james bay. 
then, another area of surface high pressure averaging 30.3 inches 
will build eastward across the great lakes through sunday, moving 
overhead monday.


loz064-065-041600-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 am est thu dec 4 2025

.today...northwest winds to 30 knots. lake effect snow showers
likely this morning, then a chance of snow showers this
afternoon. waves 6 to 9 feet building to 7 to 11 feet. waves
occasionally around 14 feet. 
.tonight...northwest winds to 30 knots becoming southeast and
diminishing to 5 to 15 knots after midnight. a chance of snow
showers late. waves 6 to 9 feet subsiding to 2 feet or less.
waves occasionally around 11 feet. 
.friday...south winds 15 to 25 knots. waves 2 to 4 feet building
to 3 to 6 feet. 
.friday night...south winds 15 to 20 knots. waves 3 to 5 feet. 
.saturday...south winds 15 to 25 knots becoming northwest. snow
and rain showers likely. waves 3 to 6 feet building to 4 to
7 feet, then subsiding to 3 to 6 feet. waves occasionally around
9 feet. 
.sunday...north winds 10 to 15 knots. snow showers likely. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.monday...north winds 5 to 15 knots becoming south 15 to
20 knots. a chance of snow showers monday night. waves 1 to
3 feet. 

$$

fzus61 kbuf 040902
glfsl 
expires:202512041600;;981316

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 am est thu dec 4 2025


slz022-041600-
saint lawrence river from cape vincent to ogdensburg-
402 am est thu dec 4 2025

.today...northwest winds 5 to 15 knots becoming west 15 to
20 knots. a chance of snow showers through early afternoon. 
.tonight...northwest winds 10 to 15 knots becoming south less
than 10 knots. mainly clear. 
.friday...south winds 5 to 15 knots. partly sunny in the morning,
then becoming mostly cloudy. 
.friday night...south winds 5 to 10 knots. mostly cloudy. 
.saturday...south winds 5 to 15 knots becoming northwest. snow
showers likely. 
.sunday...north winds less than 10 knots becoming northwest. a
chance of snow showers. 
.monday...northwest winds 10 knots or less becoming south. mainly
clear, then becoming mostly cloudy. 

$$

fzus61 kcle 040757
glfle 
expires:202512041530;;978186

open lake forecast for lake erie
national weather service cleveland oh
257 am est thu dec 4 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...
high pressure 30.40 inches will build across the region today into
friday. a cold front will move east through the area late saturday
into sunday, followed by another area of high pressure 30.50
inches late sunday into monday.


lez061-167>169-041530-
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-
257 am est thu dec 4 2025

.today...northwest winds 15 to 25 knots. a chance of snow
showers. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.tonight...northwest winds 5 to 15 knots becoming south. a slight
chance of snow showers early. waves 2 to 4 feet subsiding to 1 to
2 feet. 
.friday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.friday night...southwest winds 15 to 25 knots. waves 2 to 4 feet
building to 4 to 7 feet. waves occasionally around 9 feet. 
.saturday...southwest winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. a chance of snow and rain showers.
waves 4 to 7 feet subsiding to 2 to 4 feet. waves occasionally
around 9 feet. 
.sunday...northwest winds around 10 knots becoming northeast and
increasing to 15 to 20 knots. a chance of snow showers during the
day. waves 1 to 3 feet building to 2 to 4 feet. 
.monday...northeast winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. waves 2 to 4 feet building to 3 to
6 feet. 

$$