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(1/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 12/29/2025 10:02 AM America/New_York.
Valid through 12/29/2025 5:00 PM America/New_York.
fzus61 kbuf 291502
glflo
expires:202512292200;;441392
open lake forecast for lake ontario
national weather service buffalo ny
1002 am est mon dec 29 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...low pressure averaging 29.0 inches over georgian bay
will move to northern new england and southern quebec today, then to
the canadian maritimes by tuesday while deepening to 28.8 inches. a
trough averaging 29.7 inches, will drop southward across the lake
thursday and linger through friday.
loz063-292200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est mon dec 29 2025
...storm warning in effect through this evening...
.rest of today...southwest gales to 45 knots increasing to
50 knot storms. lake effect snow and rain showers likely late
this morning, then lake effect snow showers this afternoon. waves
15 to 20 feet building to 19 to 24 feet. waves occasionally
around 31 feet.
.tonight...west gales to 45 knots diminishing to 40 knots. lake
effect snow showers. waves 19 to 24 feet subsiding to 17 to
22 feet. waves occasionally around 31 feet.
.tuesday...northwest gales to 40 knots becoming west. lake effect
snow showers. waves 16 to 21 feet subsiding to 14 to 19 feet.
waves occasionally around 27 feet.
.tuesday night...west gales to 40 knots diminishing to 30 knots
overnight. lake effect snow showers. waves 14 to 18 feet
subsiding to 9 to 12 feet. waves occasionally around 23 feet.
.wednesday...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. lake effect snow showers. waves
9 to 12 feet subsiding to 5 to 8 feet. waves occasionally around
15 feet.
.thursday...west winds 15 to 20 knots. a chance of snow showers.
waves 3 to 6 feet.
.friday...southwest winds 15 to 25 knots becoming west. a chance
of snow showers. waves 5 to 8 feet. waves occasionally around
10 feet.
$$
(2/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 12/29/2025 10:02 AM America/New_York.
Valid through 12/29/2025 5:00 PM America/New_York.
fzus61 kbuf 291502
glflo
expires:202512292200;;441393
open lake forecast for lake ontario
national weather service buffalo ny
1002 am est mon dec 29 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...low pressure averaging 29.0 inches over georgian bay
will move to northern new england and southern quebec today, then to
the canadian maritimes by tuesday while deepening to 28.8 inches. a
trough averaging 29.7 inches, will drop southward across the lake
thursday and linger through friday.
loz064-292200-
lake ontario open waters from sodus bay to mexico bay-
1002 am est mon dec 29 2025
...storm warning in effect through this evening...
.rest of today...southwest gales to 40 knots increasing to
45 knots. a chance of rain showers late this morning, then lake
effect snow showers this afternoon. waves 13 to 17 feet building
to 18 to 23 feet. waves occasionally around 29 feet.
.tonight...southwest storm force winds to 50 knots becoming west
and diminishing to 45 knot gales after midnight. lake effect snow
showers. waves 20 to 25 feet subsiding to 17 to 22 feet. waves
occasionally around 32 feet.
.tuesday...west gales to 40 knots. lake effect snow showers.
waves 16 to 21 feet subsiding to 14 to 19 feet. waves
occasionally around 27 feet.
.tuesday night...west gales to 40 knots diminishing to 30 knots.
a chance of snow showers in the evening, then lake effect snow
showers overnight. waves 15 to 19 feet subsiding to 9 to 13 feet.
waves occasionally around 24 feet.
.wednesday...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. lake effect snow showers. waves
9 to 12 feet subsiding to 5 to 8 feet. waves occasionally around
15 feet.
.thursday...northwest winds 15 to 20 knots becoming west. snow
showers likely during the day, then a chance of snow showers
thursday night. waves 3 to 6 feet.
.friday...southwest winds 15 to 25 knots becoming west. a chance
of snow showers. waves 5 to 8 feet. waves occasionally around
10 feet.
$$
(3/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 12/29/2025 10:02 AM America/New_York.
Valid through 12/29/2025 5:00 PM America/New_York.
fzus61 kbuf 291502
glflo
expires:202512292200;;441394
open lake forecast for lake ontario
national weather service buffalo ny
1002 am est mon dec 29 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...low pressure averaging 29.0 inches over georgian bay
will move to northern new england and southern quebec today, then to
the canadian maritimes by tuesday while deepening to 28.8 inches. a
trough averaging 29.7 inches, will drop southward across the lake
thursday and linger through friday.
loz065-292200-
lake ontario open waters from mexico bay to the saint lawrence
river-
1002 am est mon dec 29 2025
...storm warning in effect through this evening...
.rest of today...southwest gales to 40 knots increasing to
45 knots. a chance of rain and snow showers late this morning,
then lake effect snow showers with a chance of lake effect rain
showers early this afternoon. lake effect snow showers late.
waves 12 to 16 feet building to 17 to 22 feet. waves occasionally
around 28 feet.
.tonight...southwest storm force winds to 50 knots becoming west
and diminishing to 45 knot gales after midnight. lake effect snow
showers. waves 18 to 23 feet subsiding to 15 to 20 feet. waves
occasionally around 29 feet.
.tuesday...west gales to 40 knots. lake effect snow showers.
waves 14 to 18 feet subsiding to 13 to 17 feet. waves
occasionally around 23 feet.
.tuesday night...west gales to 40 knots diminishing to 30 knots.
a chance of snow showers in the evening, then lake effect snow
showers overnight. waves 12 to 16 feet subsiding to 7 to 11 feet.
waves occasionally around 20 feet.
.wednesday...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. lake effect snow showers. waves
7 to 11 feet subsiding to 3 to 6 feet. waves occasionally around
14 feet.
.thursday...northwest winds 10 to 15 knots becoming west. snow
showers likely during the day, then a chance of snow showers
thursday night. waves 2 to 4 feet building to 3 to 6 feet.
.friday...west winds 15 to 20 knots. a chance of snow showers.
waves 3 to 6 feet building to 4 to 7 feet. waves occasionally
around 9 feet.
$$
(4/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 12/29/2025 10:02 AM America/New_York.
Valid through 12/29/2025 5:00 PM America/New_York.
fzus61 kbuf 291502
glfsl
expires:202512292200;;441390
forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am est mon dec 29 2025
slz022-024-292200-
saint lawrence river from cape vincent to saint regis
1002 am est mon dec 29 2025
...small craft advisory in effect through late tuesday night...
.rest of today...south winds 15 to 25 knots becoming southwest to
30 knots. a chance of rain showers late this morning, then lake
effect snow showers likely with a chance of lake effect rain
showers early this afternoon. lake effect snow showers likely
late.
.tonight...southwest winds to 30 knots becoming west. lake effect
snow showers.
.tuesday...west winds to 30 knots diminishing to 15 to 25 knots.
lake effect snow showers in the morning, then a chance of snow
showers in the afternoon.
.tuesday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of snow showers overnight.
.wednesday...southwest winds 5 to 15 knots becoming west. lake
effect snow showers likely.
.thursday...southwest winds 10 knots or less. a chance of snow
showers.
.friday...southwest winds 10 knots or less. a chance of snow
showers.
$$
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