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(1/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 12/10/2025 10:02 AM America/New_York.
Valid through 12/10/2025 5:00 PM America/New_York.
fzus61 kbuf 101502
glflo
expires:202512102200;;338883
open lake forecast for lake ontario
national weather service buffalo ny
1002 am est wed dec 10 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 cross along the northern shoreline
of the lake this afternoon before moving northeast of the lake this
evening, while dragging a cold front across the lake waters. the
region will then 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.
loz062-102200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est wed dec 10 2025
.rest of today...south winds 15 to 25 knots becoming west. snow
and rain late this morning, then rain this afternoon. waves 3 to
6 feet.
.tonight...northwest winds to 30 knots. rain likely with a chance
of snow in the evening, then lake effect snow showers likely
after midnight. waves 5 to 8 feet building to 7 to 11 feet. waves
occasionally around 14 feet.
.thursday...northwest winds to 30 knots becoming west. a chance
of snow showers. waves 6 to 10 feet. waves occasionally around
13 feet.
.thursday night...northwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. a chance of snow showers in the
evening. waves 6 to 9 feet subsiding to 3 to 6 feet. waves
occasionally around 11 feet.
.friday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of snow showers friday night. waves 3 to
5 feet subsiding to 2 to 4 feet.
.saturday...southwest winds 15 to 25 knots becoming west to
30 knots. snow showers likely during the day, then a chance of
snow showers saturday night. waves 4 to 7 feet building to 5 to
9 feet, then subsiding to 4 to 7 feet. waves occasionally around
11 feet.
.sunday...west winds 15 to 25 knots becoming northwest. a chance
of snow showers. waves 3 to 6 feet subsiding to 2 to 4 feet.
$$
(2/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 12/10/2025 10:02 AM America/New_York.
Valid through 12/10/2025 5:00 PM America/New_York.
fzus61 kbuf 101502
glflo
expires:202512102200;;338884
open lake forecast for lake ontario
national weather service buffalo ny
1002 am est wed dec 10 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 cross along the northern shoreline
of the lake this afternoon before moving northeast of the lake this
evening, while dragging a cold front across the lake waters. the
region will then 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.
loz063-102200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est wed dec 10 2025
...gale watch in effect from late tonight through thursday
evening...
.rest of today...south winds 20 to 25 knots becoming southwest.
snow and rain late this morning, then rain this afternoon. waves
3 to 6 feet.
.tonight...west winds to 30 knots becoming northwest and
increasing to 35 knot gales. rain early, then a chance of snow
and rain late in the evening. snow showers after midnight. waves
4 to 7 feet building to 10 to 13 feet. waves occasionally around
16 feet.
.thursday...northwest winds to 30 knots becoming west and
increasing to 35 knot gales. lake effect snow showers. waves
10 to 13 feet. waves occasionally around 16 feet.
.thursday night...northwest gales to 35 knots diminishing to
30 knots. a chance of snow showers. waves 9 to 13 feet subsiding
to 5 to 8 feet. waves occasionally around 16 feet.
.friday...west winds 15 to 25 knots becoming southwest and
diminishing to 10 to 15 knots. a chance of snow showers. waves
4 to 7 feet subsiding to 2 to 4 feet. waves occasionally around
9 feet.
.saturday...southwest winds 15 to 25 knots becoming west to
30 knots. snow showers likely. waves 4 to 7 feet building to 6 to
10 feet. waves occasionally around 13 feet.
.sunday...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 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 12/10/2025 10:02 AM America/New_York.
Valid through 12/10/2025 5:00 PM America/New_York.
fzus61 kbuf 101502
glflo
expires:202512102200;;338885
open lake forecast for lake ontario
national weather service buffalo ny
1002 am est wed dec 10 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 cross along the northern shoreline
of the lake this afternoon before moving northeast of the lake this
evening, while dragging a cold front across the lake waters. the
region will then 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.
loz064-065-102200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est wed dec 10 2025
...gale watch in effect from late tonight through thursday
evening...
.rest of today...south winds to 30 knots becoming southwest. snow
and rain, then rain late. waves 4 to 7 feet. waves occasionally
around 9 feet.
.tonight...west winds to 30 knots becoming northwest and
increasing to 35 knot gales after midnight. rain early, then rain
and snow likely late in the evening. lake effect snow showers
likely after midnight. waves 5 to 9 feet building to 10 to
13 feet. waves occasionally around 16 feet.
.thursday...west winds to 30 knots increasing to 35 knot gales.
snow showers likely. waves 10 to 14 feet. waves occasionally
around 18 feet.
.thursday night...northwest gales to 35 knots diminishing to
30 knots. snow showers likely in the evening, then a chance of
snow showers overnight. waves 10 to 14 feet subsiding to 5 to
8 feet. waves occasionally around 18 feet.
.friday...northwest winds 15 to 25 knots becoming southwest and
diminishing to 10 to 15 knots. lake effect snow showers likely.
waves 4 to 7 feet subsiding to 2 to 4 feet. waves occasionally
around 9 feet.
.saturday...southwest winds 15 to 25 knots becoming west. snow
showers. waves 4 to 7 feet building to 8 to 11 feet, then
subsiding to 6 to 9 feet. waves occasionally around 14 feet.
.sunday...west winds 15 to 25 knots becoming northwest. 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.
$$
(4/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 12/10/2025 10:02 AM America/New_York.
Valid through 12/10/2025 5:00 PM America/New_York.
fzus61 kbuf 101502
glfsl
expires:202512102200;;338881
forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am est wed dec 10 2025
slz022-102200-
saint lawrence river from cape vincent to ogdensburg-
1002 am est wed dec 10 2025
.rest of today...southeast winds 5 to 10 knots becoming south.
snow late this morning, then snow and rain this afternoon.
.tonight...southwest winds 5 to 15 knots becoming west. snow and
rain in the evening, then snow showers likely after midnight.
.thursday...west winds 15 to 20 knots. snow showers likely.
.thursday night...west winds 15 to 20 knots diminishing to 5 to
15 knots. snow showers likely in the evening, then a chance of
snow showers overnight.
.friday...west winds 10 knots or less becoming south. a chance of
snow showers friday night.
.saturday...south winds 5 to 10 knots becoming southwest. snow
showers likely.
.sunday...west winds 5 to 10 knots becoming northwest. snow
showers likely during the day, then a chance of snow showers
sunday night.
$$
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