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(1/5)
Latest Great Lakes Marine Forecast by KBUF
Issued 11/23/2025 10:02 AM America/New_York.
Valid through 11/23/2025 5:00 PM America/New_York.
fzus61 kbuf 231502
glflo
expires:202511232200;;368256
open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun nov 23 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 29.5 inch low will move from northern ontario to james
bay, sending its cold front across the lake this afternoon. a 30.2
inch high is then forecast to build across the ohio valley monday.
on tuesday a 29.5 inch low to the north of lake superior will swing
a cold front across the lake by tuesday night. the surface low will
then track well north of the lake wednesday and thursday.
loz062-232200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est sun nov 23 2025
.rest of today...west winds 15 to 25 knots. a chance of showers.
waves 3 to 6 feet building to 6 to 9 feet. waves occasionally
around 11 feet.
.tonight...west winds 15 to 25 knots becoming northwest. a chance
of showers early. waves 5 to 8 feet subsiding to 3 to 6 feet.
waves occasionally around 10 feet.
.monday...west winds 5 to 15 knots becoming southwest. waves 1 to
3 feet.
.monday night...south winds 5 to 10 knots. waves 2 feet or less.
.tuesday...south winds 5 to 10 knots. showers likely. waves
1 foot or less.
.wednesday...southwest winds 15 to 20 knots becoming west and
increasing to 35 knot gales. rain showers likely during the day,
then rain showers likely with a chance of snow showers wednesday
night. waves 2 to 4 feet building to 9 to 13 feet. waves
occasionally around 16 feet.
.thursday...west gales to 35 knots. a chance of snow showers.
waves 10 to 14 feet subsiding to 8 to 11 feet. waves occasionally
around 18 feet.
$$
(2/5)
Latest Great Lakes Marine Forecast by KBUF
Issued 11/23/2025 10:02 AM America/New_York.
Valid through 11/23/2025 5:00 PM America/New_York.
fzus61 kbuf 231502
glflo
expires:202511232200;;368257
open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun nov 23 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 29.5 inch low will move from northern ontario to james
bay, sending its cold front across the lake this afternoon. a 30.2
inch high is then forecast to build across the ohio valley monday.
on tuesday a 29.5 inch low to the north of lake superior will swing
a cold front across the lake by tuesday night. the surface low will
then track well north of the lake wednesday and thursday.
loz063-232200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est sun nov 23 2025
.rest of today...southwest winds 15 to 25 knots becoming west to
30 knots. a chance of showers late this morning, then showers
likely this afternoon. waves 3 to 5 feet building to 7 to
10 feet. waves occasionally around 13 feet.
.tonight...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. a chance of showers early. waves
6 to 10 feet subsiding to 4 to 7 feet. waves occasionally around
13 feet.
.monday...northwest winds 15 to 20 knots becoming southwest and
diminishing to 5 to 10 knots. waves 3 to 5 feet subsiding to 1 to
3 feet.
.monday night...south winds 5 to 15 knots. waves 2 feet or less.
.tuesday...south winds 10 to 15 knots. showers likely. waves
2 feet or less.
.wednesday...south winds 10 to 15 knots becoming west and
increasing to 35 knot gales. rain showers likely during the day,
then rain and snow showers likely wednesday night. waves 1 to
3 feet building to 10 to 15 feet. waves occasionally around
19 feet.
.thursday...west gales to 35 knots diminishing to 30 knots. snow
and rain showers likely during the day, then snow showers likely
thursday night. waves 11 to 16 feet subsiding to 10 to 14 feet.
waves occasionally around 20 feet.
$$
(3/5)
Latest Great Lakes Marine Forecast by KBUF
Issued 11/23/2025 10:02 AM America/New_York.
Valid through 11/23/2025 5:00 PM America/New_York.
fzus61 kbuf 231502
glflo
expires:202511232200;;368258
open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun nov 23 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 29.5 inch low will move from northern ontario to james
bay, sending its cold front across the lake this afternoon. a 30.2
inch high is then forecast to build across the ohio valley monday.
on tuesday a 29.5 inch low to the north of lake superior will swing
a cold front across the lake by tuesday night. the surface low will
then track well north of the lake wednesday and thursday.
loz064-065-232200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est sun nov 23 2025
.rest of today...south winds 15 to 25 knots becoming west. rain
showers likely late this morning, then rain early this afternoon.
rain showers likely late. waves 3 to 6 feet building to 6 to
9 feet. waves occasionally around 11 feet.
.tonight...west winds 15 to 25 knots becoming northwest. a chance
of rain showers in the evening. waves 6 to 10 feet subsiding to
4 to 7 feet. waves occasionally around 13 feet.
.monday...northwest winds 15 to 20 knots becoming southwest and
diminishing to 5 to 10 knots. waves 3 to 5 feet subsiding to 1 to
2 feet.
.monday night...south winds 10 to 15 knots. waves 1 to 3 feet.
.tuesday...south winds 10 to 15 knots. showers. waves 1 to
3 feet.
.wednesday...south winds 15 to 20 knots becoming west and
increasing to 35 knot gales. rain showers during the day, then
rain showers with snow showers likely wednesday night. waves 1 to
3 feet building to 10 to 15 feet. waves occasionally around
19 feet.
.thursday...west gales to 35 knots diminishing to 30 knots. rain
and snow showers likely during the day, then snow showers likely
thursday night. waves 11 to 16 feet. waves occasionally around
20 feet.
$$
(4/5)
Latest Great Lakes Marine Forecast by KBUF
Issued 11/23/2025 10:02 AM America/New_York.
Valid through 11/23/2025 5:00 PM America/New_York.
fzus61 kbuf 231502
glfsl
expires:202511232200;;368254
forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am est sun nov 23 2025
slz022-232200-
saint lawrence river from cape vincent to ogdensburg-
1002 am est sun nov 23 2025
.rest of today...south winds 5 to 10 knots becoming southwest.
snow and rain late this morning, then rain early this afternoon.
rain showers likely late.
.tonight...west winds 5 to 10 knots. a chance of rain showers in
the evening.
.monday...west winds 10 knots or less becoming southwest. mostly
sunny.
.monday night...south winds 10 knots or less. mostly cloudy.
.tuesday...south winds 5 to 10 knots becoming southeast. rain
showers likely.
.wednesday...south winds 5 to 15 knots becoming southwest 15 to
20 knots. rain showers during the day, then rain showers with a
chance of snow showers wednesday night.
.thursday...southwest winds 10 to 15 knots becoming west. a
chance of snow and rain showers during the day, then a chance of
snow showers thursday night.
$$
(5/5)
Latest Great Lakes Marine Forecast by KCLE
Issued 11/23/2025 10:05 AM America/New_York.
Valid through 11/23/2025 4:30 PM America/New_York.
fzus61 kcle 231505
glfle
expires:202511232130;;368443
open lake forecast for lake erie
national weather service cleveland oh
1005 am est sun nov 23 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 29.70 inches will depart through the eastern great
lakes this afternoon allowing high pressure 30.30 inches to build
over lake erie tonight and monday. another area of low pressure
29.70 inches will lift into the upper midwest tuesday. this low
will lift a warm front north through the region on tuesday,
followed by a cold front on wednesday as the low deepens to 29.20
inches over the northern great lakes. a surface trough averaging
29.90 inches will then linger across the area through friday.
lez061-168-169-232130-
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-
1005 am est sun nov 23 2025
.this afternoon...west winds 20 to 25 knots. waves 5 to 7 feet.
waves occasionally around 9 feet.
.tonight...west winds 15 to 25 knots becoming northwest and
diminishing to 5 to 15 knots. waves 4 to 7 feet subsiding to 1 to
3 feet. waves occasionally around 9 feet.
.monday...west winds 5 to 10 knots becoming south. waves 1 to
2 feet.
.monday night...south winds 10 to 15 knots. waves 1 to 2 feet.
.tuesday...south winds 10 to 15 knots becoming southwest. rain
during the day, then a chance of rain tuesday night. waves 1 to
2 feet.
.wednesday...southwest winds to 30 knots becoming west. rain
likely during the day, then a chance of rain and snow wednesday
night. waves 4 to 7 feet building to 10 to 14 feet. waves
occasionally around 18 feet.
.thursday...west winds to 30 knots. snow likely. waves 9 to
13 feet. waves occasionally around 16 feet.
$$
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