fzus61 kbuf 201502
glflo 
expires:202512202200;;919733

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sat dec 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 28.9 inch low over central quebec will continue 
to move east tonight. in its wake, a 30.1 inch high will slowly 
build across the lake tonight and early saturday, before drifting 
off the atlantic coastline later saturday and saturday night. a 29.5 
inch low moving across ontario and quebec will push its attendant 
cold front across the lake sunday. a large 30.6 inch high will then 
build east across the lake monday. a 29.8 inch low just north of 
lake superior tuesday will pass north of the lake, resulting in a 
pair of fronts passing across the region.


loz062-202200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est sat dec 20 2025

...gale warning in effect from late tonight through sunday
evening...

.this afternoon...south winds 15 to 25 knots becoming southwest.
waves 2 to 3 feet building to 3 to 6 feet. 
.tonight...southwest winds to 30 knots becoming west and
increasing to 35 knot gales after midnight. a chance of rain
showers early. waves 5 to 8 feet building to 10 to 14 feet. waves
occasionally around 18 feet. 
.sunday...west gales to 35 knots diminishing to 30 knots. a
chance of snow showers in the morning, then snow showers likely
in the afternoon. waves 10 to 14 feet subsiding to 8 to 11 feet.
waves occasionally around 18 feet. 
.sunday night...west winds to 30 knots diminishing to 15 to
20 knots. a chance of snow showers in the evening. waves 6 to
9 feet subsiding to 2 to 4 feet. waves occasionally around
11 feet. 
.monday...west winds 15 to 20 knots becoming south 10 to
15 knots. snow and rain showers likely monday night. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tuesday...southwest winds 15 to 25 knots becoming northwest.
rain and snow showers likely during the day, then a chance of
rain showers tuesday night. waves 1 to 3 feet building to 3 to
6 feet. 
.wednesday...northwest winds 10 to 15 knots becoming southeast
10 knots or less. a chance of rain showers wednesday night. waves
2 to 4 feet subsiding to 2 feet or less. 

$$

fzus61 kbuf 201502
glflo 
expires:202512202200;;919734

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sat dec 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 28.9 inch low over central quebec will continue 
to move east tonight. in its wake, a 30.1 inch high will slowly 
build across the lake tonight and early saturday, before drifting 
off the atlantic coastline later saturday and saturday night. a 29.5 
inch low moving across ontario and quebec will push its attendant 
cold front across the lake sunday. a large 30.6 inch high will then 
build east across the lake monday. a 29.8 inch low just north of 
lake superior tuesday will pass north of the lake, resulting in a 
pair of fronts passing across the region.


loz063-202200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est sat dec 20 2025

...gale warning in effect from late tonight through sunday
evening...

.this afternoon...south winds 15 to 25 knots. waves 3 to 5 feet. 
.tonight...southwest winds to 30 knots becoming west and
increasing to 35 knot gales after midnight. a chance of rain and
snow showers early, then a chance of rain showers late in the
evening. waves 3 to 6 feet building to 11 to 15 feet. waves
occasionally around 19 feet. 
.sunday...west gales to 35 knots. a chance of snow showers in the
morning, then lake effect snow showers likely in the afternoon.
waves 11 to 16 feet subsiding to 10 to 14 feet. waves
occasionally around 20 feet. 
.sunday night...northwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. a chance of snow showers. waves
10 to 13 feet subsiding to 3 to 5 feet. waves occasionally around
16 feet. 
.monday...west winds 15 to 20 knots becoming south. snow and rain
showers likely monday night. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.tuesday...south winds 15 to 25 knots becoming northwest. rain
and snow showers during the day, then a chance of rain and snow
showers tuesday night. waves 2 to 4 feet building to 5 to 8 feet.
waves occasionally around 10 feet. 
.wednesday...northwest winds 15 to 20 knots becoming south 5 to
15 knots. a chance of rain showers wednesday night. waves 3 to
6 feet subsiding to 1 to 3 feet. 

$$

fzus61 kbuf 201502
glflo 
expires:202512202200;;919735

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sat dec 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 28.9 inch low over central quebec will continue 
to move east tonight. in its wake, a 30.1 inch high will slowly 
build across the lake tonight and early saturday, before drifting 
off the atlantic coastline later saturday and saturday night. a 29.5 
inch low moving across ontario and quebec will push its attendant 
cold front across the lake sunday. a large 30.6 inch high will then 
build east across the lake monday. a 29.8 inch low just north of 
lake superior tuesday will pass north of the lake, resulting in a 
pair of fronts passing across the region.


loz064-065-202200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est sat dec 20 2025

...gale warning in effect from late tonight through sunday
evening...

.this afternoon...southwest winds 15 to 20 knots becoming south
and increasing to 30 knots. waves 3 to 5 feet building to 4 to
7 feet. waves occasionally around 9 feet. 
.tonight...south winds to 30 knots becoming west and increasing
to 35 knot gales after midnight. a chance of rain showers late in
the evening. a chance of rain and snow showers after midnight.
waves 5 to 9 feet building to 11 to 15 feet. waves occasionally
around 19 feet. 
.sunday...west gales to 35 knots. a chance of snow showers. waves
11 to 16 feet subsiding to 10 to 14 feet. waves occasionally
around 20 feet. 
.sunday night...northwest gales to 35 knots diminishing to 15 to
25 knots. a chance of snow showers in the evening. waves 10 to
13 feet subsiding to 3 to 5 feet. waves occasionally around
16 feet. 
.monday...west winds 10 to 15 knots becoming south 15 to
20 knots. snow showers likely monday night. waves 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots becoming northwest. rain
and snow showers during the day, then rain showers likely with a
chance of snow showers tuesday night. waves 3 to 5 feet building
to 6 to 9 feet. waves occasionally around 11 feet. 
.wednesday...northwest winds 15 to 20 knots becoming south. a
chance of rain showers wednesday night. waves 3 to 6 feet
subsiding to 1 to 3 feet. 

$$

fzus61 kbuf 201502
glfsl 
expires:202512202200;;919731

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am est sat dec 20 2025


slz022-202200-
saint lawrence river from cape vincent to ogdensburg-
1002 am est sat dec 20 2025

.rest of today...southwest winds 5 to 15 knots becoming south.
mostly sunny late this morning, then becoming mostly cloudy. 
.tonight...south winds 15 to 20 knots becoming southwest. a
chance of snow showers early, then a chance of rain and snow
showers. 
.sunday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow showers in the morning. 
.sunday night...northwest winds 5 to 15 knots becoming west less
than 10 knots. mostly cloudy in the evening, then clearing. 
.monday...southwest winds 10 knots or less becoming south. snow
showers likely monday night. 
.tuesday...south winds 5 to 10 knots becoming northwest. snow and
rain showers. 
.wednesday...northwest winds 10 knots or less becoming south.
mostly cloudy. 

$$