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(1/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 12/9/2025 4:02 PM America/New_York.
Valid through 12/9/2025 11:00 PM America/New_York.
fzus61 kbuf 092102
glflo
expires:202512100400;;295919
open lake forecast for lake ontario
national weather service buffalo ny
402 pm est tue dec 9 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 29.2 inch low will approach the region tonight and
move just northwest of the lake wednesday. the region will be
situated between a 29.1 inch low over the canadian maritimes and a
30.1 inch high over the southern plains thursday. a 29.9 inch ridge
of high pressure is expected to move into the great lakes region
friday. a 29.8 inch low may move north of the lake on saturday, then
30.2 inches will average across the lower great lakes region between
the departing low to the east and a 30.7 inch high over the plains
sunday.
loz062-100400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est tue dec 9 2025
.tonight...southwest winds 15 to 25 knots becoming south. snow
likely early, then snow and rain from late evening on. waves 4 to
7 feet subsiding to 3 to 5 feet. waves occasionally around
9 feet.
.wednesday...south winds 15 to 25 knots becoming west. snow and
rain early, then rain from late morning on. waves 2 to 4 feet
building to 3 to 6 feet.
.wednesday night...west winds 20 to 25 knots. a chance of snow
and rain showers in the evening, then lake effect snow overnight.
waves 5 to 8 feet. waves occasionally around 10 feet.
.thursday...northwest winds 20 to 25 knots becoming west. snow
showers in the morning, then a chance of snow showers in the
afternoon. waves 5 to 8 feet. waves occasionally around 10 feet.
.thursday night...northwest winds 15 to 25 knots becoming west. a
chance of snow showers in the evening. waves 5 to 8 feet
subsiding to 3 to 6 feet. waves occasionally around 10 feet.
.friday...west winds 15 to 20 knots becoming southwest. a chance
of snow showers friday night. waves 3 to 5 feet subsiding to 2 to
4 feet.
.saturday...west winds to 30 knots diminishing to 15 to 20 knots.
snow showers likely. waves 4 to 7 feet building to 5 to 9 feet,
then subsiding to 4 to 7 feet. waves occasionally around 11 feet.
.sunday...northwest winds 15 to 20 knots. snow showers likely
during the day, then a chance of snow showers sunday night. waves
3 to 6 feet subsiding to 2 to 4 feet.
$$
(2/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 12/9/2025 4:02 PM America/New_York.
Valid through 12/9/2025 11:00 PM America/New_York.
fzus61 kbuf 092102
glflo
expires:202512100400;;295920
open lake forecast for lake ontario
national weather service buffalo ny
402 pm est tue dec 9 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 29.2 inch low will approach the region tonight and
move just northwest of the lake wednesday. the region will be
situated between a 29.1 inch low over the canadian maritimes and a
30.1 inch high over the southern plains thursday. a 29.9 inch ridge
of high pressure is expected to move into the great lakes region
friday. a 29.8 inch low may move north of the lake on saturday, then
30.2 inches will average across the lower great lakes region between
the departing low to the east and a 30.7 inch high over the plains
sunday.
loz063-100400-
lake ontario open waters from hamlin beach to sodus bay-
402 pm est tue dec 9 2025
.tonight...south winds 15 to 25 knots. a chance of snow showers
this evening, then a chance of rain and snow showers after
midnight. rain and snow late. waves 3 to 6 feet.
.wednesday...south winds 15 to 25 knots becoming southwest. snow
and rain in the morning, then rain in the afternoon. waves 3 to
6 feet.
.wednesday night...west winds to 30 knots. rain and snow in the
evening, then lake effect snow likely overnight. waves 4 to
7 feet building to 6 to 10 feet. waves occasionally around
13 feet.
.thursday...northwest winds to 30 knots becoming west. lake
effect snow showers likely. waves 7 to 11 feet. waves
occasionally around 14 feet.
.thursday night...northwest winds to 30 knots becoming west. a
chance of snow showers. waves 8 to 11 feet subsiding to 5 to
9 feet. waves occasionally around 14 feet.
.friday...west winds 15 to 20 knots becoming southwest. a chance
of snow showers. waves 4 to 7 feet subsiding to 2 to 4 feet.
waves occasionally around 9 feet.
.saturday...southwest winds to 30 knots becoming west. snow
showers likely. waves 4 to 7 feet building to 6 to 10 feet. waves
occasionally around 13 feet.
.sunday...northwest winds 15 to 25 knots. snow showers likely
during the day, then a chance of snow showers sunday night. waves
4 to 7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet.
$$
(3/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 12/9/2025 4:02 PM America/New_York.
Valid through 12/9/2025 11:00 PM America/New_York.
fzus61 kbuf 092102
glflo
expires:202512100400;;295921
open lake forecast for lake ontario
national weather service buffalo ny
402 pm est tue dec 9 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 29.2 inch low will approach the region tonight and
move just northwest of the lake wednesday. the region will be
situated between a 29.1 inch low over the canadian maritimes and a
30.1 inch high over the southern plains thursday. a 29.9 inch ridge
of high pressure is expected to move into the great lakes region
friday. a 29.8 inch low may move north of the lake on saturday, then
30.2 inches will average across the lower great lakes region between
the departing low to the east and a 30.7 inch high over the plains
sunday.
loz064-065-100400-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 pm est tue dec 9 2025
.tonight...south winds to 30 knots. snow likely early, then a
chance of snow showers. snow and rain late. waves 5 to 8 feet.
waves occasionally around 10 feet.
.wednesday...south winds 20 to 25 knots becoming southwest. snow
early, then snow and rain late in the morning. rain in the
afternoon. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet.
.wednesday night...west winds to 30 knots. rain and snow in the
evening, then a chance of snow showers overnight. waves 5 to
9 feet building to 7 to 10 feet. waves occasionally around
13 feet.
.thursday...west winds to 30 knots. a chance of snow showers in
the morning, then lake effect snow showers likely in the
afternoon. waves 7 to 11 feet. waves occasionally around 14 feet.
.thursday night...northwest winds to 30 knots. snow showers
likely in the evening, then a chance of snow showers overnight.
waves 7 to 11 feet subsiding to 5 to 9 feet. waves occasionally
around 14 feet.
.friday...west winds 15 to 20 knots becoming southwest. a chance
of snow showers during the day, then snow showers likely friday
night. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet.
.saturday...southwest winds to 30 knots becoming west 15 to
25 knots. snow showers likely. waves 4 to 7 feet building to 8 to
11 feet, then subsiding to 6 to 9 feet. waves occasionally around
14 feet.
.sunday...northwest winds 15 to 25 knots. snow showers likely
during the day, then a chance of snow showers sunday night. waves
5 to 8 feet subsiding to 3 to 6 feet. waves occasionally around
10 feet.
$$
(4/4)
Latest Great Lakes Marine Forecast by KCLE
Issued 12/9/2025 3:01 PM America/New_York.
Valid through 12/9/2025 10:30 PM America/New_York.
fzus61 kcle 092001
glfle
expires:202512100330;;293223
open lake forecast for lake erie
national weather service cleveland oh
301 pm est tue dec 9 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...
a warm front will lift across lake erie tonight, followed by
strong cold front as low pressure 29.30 inches moves northeast
across lower michigan and southern ontario on wednesday. a trough
averaging 29.90 inches will linger over the lower great lakes
through thursday with a ridge averaging 30.00 inches briefly
building east over the lake on friday. a cold front will track
east across the region late friday into saturday and high pressure
30.40 inches will begin to build in from the west towards the end
of the weekend.
lez061-168-169-100330-
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-
301 pm est tue dec 9 2025
...gale warning in effect from late tonight through wednesday
evening...
.tonight...southwest winds to 30 knots becoming south. a slight
chance of snow early, then a slight chance of rain late this
evening. rain and snow after midnight. waves 6 to 10 feet. waves
occasionally around 13 feet.
.wednesday...southwest winds to 30 knots becoming west and
increasing to 35 knot gales in the afternoon. rain through early
afternoon, then rain with snow likely late. waves 10 to 14 feet
building to 12 to 16 feet. waves occasionally around 20 feet.
.wednesday night...northwest winds to 30 knots becoming west. a
chance of snow and rain in the evening, then a chance of snow
showers overnight. waves 9 to 12 feet subsiding to 5 to 9 feet.
waves occasionally around 15 feet.
.thursday...west winds to 30 knots. a chance of snow showers.
waves 5 to 8 feet. waves occasionally around 10 feet.
.thursday night...west winds to 30 knots diminishing to 15 to
20 knots. a chance of snow showers. waves 5 to 8 feet subsiding
to 3 to 5 feet. waves occasionally around 10 feet.
.friday...west winds 15 to 25 knots becoming southwest. a chance
of snow during the day, then snow likely friday night. waves 2 to
4 feet building to 6 to 9 feet. waves occasionally around
11 feet.
.saturday...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. snow likely. waves 5 to 9 feet
subsiding to 4 to 6 feet. waves occasionally around 11 feet.
.sunday...northwest winds 15 to 25 knots. snow likely during the
day, then a chance of snow sunday night. waves 3 to 6 feet
subsiding to 2 to 4 feet.
$$
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