fzus61 kbuf 251502
glflo 
expires:202511252200;;484088

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est tue nov 25 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 29.7 inch low over the upper midwest today will track 
toward the central great lakes wednesday, then track into eastern 
ontario through wednesday night while deepening to 29.4 inches. a 
cold front from this low will rush across the lake wednesday 
afternoon. the 29.4 inch surface low will then track well north of 
the lake thursday and friday, as a 30.4 inch surface high builds 
into the mid mississippi valley friday and to the ohio valley 
saturday.


loz062-252200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est tue nov 25 2025

...gale warning in effect from wednesday afternoon through friday
evening...

.this afternoon...southeast winds 5 to 10 knots becoming east.
showers. waves 1 foot or less. 
.tonight...southeast winds 5 to 10 knots becoming south. showers.
waves 1 foot or less. 
.wednesday...south winds around 10 knots becoming southwest and
increasing to 35 knot gales in the afternoon. showers. waves
1 foot or less building to 8 to 11 feet. waves occasionally
around 14 feet. 
.wednesday night...southwest gales to 40 knots becoming west.
rain showers in the evening, then a chance of rain and snow
showers overnight. waves 10 to 15 feet building to 12 to 17 feet.
waves occasionally around 22 feet. 
.thursday...west gales to 40 knots diminishing to 30 knots. rain
and snow showers likely during the day, then snow showers
thursday night. waves 14 to 19 feet subsiding to 10 to 13 feet.
waves occasionally around 24 feet. 
.friday...west gales to 35 knots becoming northwest and
diminishing to 15 to 20 knots. snow showers. waves 9 to 12 feet
subsiding to 4 to 7 feet. waves occasionally around 15 feet. 
.saturday...west winds 15 to 20 knots becoming south 10 to
15 knots. a chance of snow showers during the day, then snow
showers likely saturday night. waves 3 to 5 feet subsiding to
1 to 3 feet. 

$$

fzus61 kbuf 251502
glflo 
expires:202511252200;;484089

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est tue nov 25 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 29.7 inch low over the upper midwest today will track 
toward the central great lakes wednesday, then track into eastern 
ontario through wednesday night while deepening to 29.4 inches. a 
cold front from this low will rush across the lake wednesday 
afternoon. the 29.4 inch surface low will then track well north of 
the lake thursday and friday, as a 30.4 inch surface high builds 
into the mid mississippi valley friday and to the ohio valley 
saturday.


loz063-252200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est tue nov 25 2025

...gale warning in effect from wednesday afternoon through friday
evening...

.this afternoon...southeast winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of showers early. showers
late. waves 1 to 3 feet. 
.tonight...southeast winds 10 to 15 knots becoming south. showers
early, then a chance of showers late in the evening. showers
likely after midnight. waves 2 feet or less. 
.wednesday...south winds 10 to 15 knots becoming southwest and
increasing to 30 knots in the afternoon. showers. waves 1 to
3 feet building to 5 to 8 feet. waves occasionally around
10 feet. 
.wednesday night...west gales to 35 knots increasing to 40 knots.
rain showers in the evening, then rain showers likely with a
chance of snow showers overnight. waves 10 to 15 feet building to
12 to 17 feet. waves occasionally around 22 feet. 
.thursday...west gales to 45 knots diminishing to 35 knots. rain
and snow showers. waves 15 to 20 feet subsiding to 12 to 16 feet.
waves occasionally around 26 feet. 
.friday...northwest gales to 35 knots diminishing to 30 knots.
snow showers. waves 10 to 15 feet subsiding to 6 to 9 feet. waves
occasionally around 19 feet. 
.saturday...northwest winds 15 to 20 knots becoming south. snow
showers likely during the day, then a chance of snow showers
saturday night. waves 4 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 9 feet. 

$$

fzus61 kbuf 251502
glflo 
expires:202511252200;;484090

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est tue nov 25 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 29.7 inch low over the upper midwest today will track 
toward the central great lakes wednesday, then track into eastern 
ontario through wednesday night while deepening to 29.4 inches. a 
cold front from this low will rush across the lake wednesday 
afternoon. the 29.4 inch surface low will then track well north of 
the lake thursday and friday, as a 30.4 inch surface high builds 
into the mid mississippi valley friday and to the ohio valley 
saturday.


loz064-065-252200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est tue nov 25 2025

...gale warning in effect from wednesday afternoon through friday
evening...

.this afternoon...south winds 15 to 20 knots becoming southeast
10 to 15 knots. a chance of showers early. showers
late. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...southeast winds 10 to 15 knots becoming south. showers
early, then a chance of showers late in the evening. showers
likely after midnight. waves 1 to 2 feet. 
.wednesday...south winds 10 to 15 knots becoming southwest and
increasing to 30 knots in the afternoon. showers. waves 1 to
3 feet building to 5 to 8 feet. waves occasionally around
10 feet. 
.wednesday night...west gales to 40 knots becoming southwest to
35 knots. rain showers. waves 11 to 16 feet building to 13 to
17 feet. waves occasionally around 22 feet. 
.thursday...southwest gales to 40 knots becoming west to
35 knots. rain and snow showers. waves 15 to 20 feet building to
16 to 21 feet, then subsiding to 13 to 17 feet. waves
occasionally around 27 feet. 
.friday...west gales to 35 knots becoming northwest and
diminishing to 15 to 25 knots. snow showers during the day, then
a chance of snow showers friday night. waves 10 to 15 feet
subsiding to 7 to 10 feet. waves occasionally around 19 feet. 
.saturday...northwest winds 15 to 20 knots becoming south. a
chance of snow showers. waves 4 to 7 feet subsiding to 1 to
3 feet. waves occasionally around 9 feet. 

$$

fzus61 kbuf 251502
glfsl 
expires:202511252200;;484086

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am est tue nov 25 2025


slz022-252200-
saint lawrence river from cape vincent to ogdensburg-
1002 am est tue nov 25 2025

.this afternoon...south winds 5 to 10 knots. a chance of showers
late. 
.tonight...southeast winds less than 10 knots. showers.
.wednesday...southeast winds 10 knots or less becoming southwest
and increasing to 15 to 20 knots in the afternoon. showers.
.wednesday night...southwest winds 15 to 25 knots. rain showers
in the evening, then rain and snow showers likely overnight. 
.thursday...southwest winds to 30 knots becoming west and
diminishing to 10 to 15 knots. rain and snow showers likely
during the day, then snow showers likely thursday night. 
.friday...west winds 5 to 15 knots. a chance of snow showers
during the day. 
.saturday...west winds 10 knots or less becoming southeast. a
chance of snow showers saturday night. 

$$

fzus61 kcle 251954
glfle 
expires:202511260330;;496463

open lake forecast for lake erie
national weather service cleveland oh
254 pm est tue nov 25 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...
low pressure 29.60 inches will deepen to 29.20 inches over the 
northern great lakes tonight into wednesday. a strong cold front
extending from this low will quickly move east across lake erie 
wednesday morning. the low will slowly move through ontario and 
quebec on thursday and friday as a residual trough averaging 29.80
inches remains across the lake. high pressure 30.50 inches will 
build into the great lakes region on saturday followed by a low of
29.90 inches on sunday.


lez061-168-169-260330-
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-
254 pm est tue nov 25 2025

...gale warning in effect from wednesday morning through friday
morning...

.tonight...south winds 10 to 15 knots becoming southwest. a
chance of rain early, then rain likely. a chance of rain late.
waves 2 feet or less. 
.wednesday...southwest winds 15 to 20 knots increasing to 40 knot
gales in the afternoon. rain likely. waves 1 to 3 feet building
to 13 to 17 feet. waves occasionally around 22 feet. 
.wednesday night...southwest gales to 40 knots becoming west to
45 knots. rain and snow. waves 14 to 19 feet. waves occasionally
around 24 feet. 
.thursday...west gales to 40 knots. snow likely. waves 13 to
18 feet subsiding to 12 to 17 feet. waves occasionally around
23 feet. 
.thursday night...west gales to 40 knots. snow likely in the
evening, then snow overnight. waves 12 to 17 feet subsiding to
10 to 14 feet. waves occasionally around 22 feet. 
.friday...west gales to 35 knots diminishing to 15 to 25 knots.
snow during the day, then a chance of snow friday night. waves
10 to 13 feet subsiding to 4 to 7 feet. waves occasionally around
16 feet. 
.saturday...west winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. a chance of snow during the day,
then rain with snow likely saturday night. waves 1 to 3 feet
building to 3 to 5 feet. 
.sunday...south winds 15 to 25 knots becoming west. rain likely
during the day, then rain likely with a chance of snow sunday
night. waves 3 to 6 feet building to 4 to 7 feet, then subsiding
to 3 to 5 feet. waves occasionally around 9 feet. 

$$