317
FZUS61 KBUF 242102
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EST Mon Nov 24 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 30.2 inch high along the eastern seaboard this
evening will drift farther out to sea through the night. A 29.7 inch
low over the Upper Midwest Tuesday 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.

LOZ062-250400-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EST Mon Nov 24 2025

...GALE WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH FRIDAY
EVENING...

.TONIGHT...South winds 5 to 10 knots. Waves 2 feet or less.
.TUESDAY...South winds 5 to 10 knots becoming southeast. Showers
in the afternoon. Waves 1 foot or less.
.TUESDAY NIGHT...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 to
3 feet building to 8 to 11 feet. Waves occasionally around
14 feet.
.WEDNESDAY NIGHT...Southwest gales to 40 knots becoming west.
Rain showers with a chance of snow 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 35 knots. Lake
effect snow showers likely during the day, then lake effect snow
Thursday night. Waves 14 to 19 feet subsiding to 10 to 14 feet.
Waves occasionally around 24 feet.
.FRIDAY...West gales to 35 knots diminishing to 15 to 25 knots.
Lake effect snow showers likely. Waves 9 to 13 feet subsiding to
4 to 7 feet. Waves occasionally around 16 feet.
.SATURDAY...West winds 15 to 20 knots becoming south 10 to
15 knots. A chance of snow showers during the day, then a chance
of snow and rain showers Saturday night. Waves 3 to 5 feet
subsiding to 1 to 3 feet.

$$

LOZ063-250400-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
402 PM EST Mon Nov 24 2025

...GALE WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH FRIDAY
EVENING...

.TONIGHT...South winds 5 to 15 knots. Waves 2 feet or less.
.TUESDAY...South winds 10 to 15 knots becoming southeast. A
chance of showers early in the afternoon. Showers likely late.
Waves 2 feet or less.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots becoming south.
Showers. 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 35 knots increasing to 40 knots.
Rain showers in the evening, then lake effect rain and snow
showers likely 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. Lake
effect rain and snow showers likely during the day, then lake
effect snow Thursday night. Waves 15 to 20 feet subsiding to
14 to 18 feet. Waves occasionally around 26 feet.
.FRIDAY...Northwest gales to 35 knots diminishing to 30 knots.
Lake effect snow showers likely. Waves 11 to 16 feet subsiding to
6 to 9 feet. Waves occasionally around 20 feet.
.SATURDAY...Northwest winds 15 to 20 knots becoming south 10 to
15 knots. Snow showers likely during the day, then a chance of
snow showers Saturday night. Waves 3 to 6 feet subsiding to 1 to
3 feet.

$$

LOZ064-065-250400-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
402 PM EST Mon Nov 24 2025

...GALE WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH FRIDAY
EVENING...

.TONIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots. Waves 1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers early in the afternoon. Showers
likely late. Waves 1 to 3 feet.
.TUESDAY NIGHT...South winds 10 to 15 knots. Showers. Waves 1 to
3 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. Lake effect rain in the evening, then lake effect rain
with lake effect snow showers likely overnight. 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. Lake effect rain and snow during the day, then lake
effect snow Thursday night. Waves 15 to 20 feet subsiding to
14 to 18 feet. Waves occasionally around 26 feet.
.FRIDAY...Northwest gales to 35 knots diminishing to 30 knots.
Lake effect snow showers likely during the day, then a chance of
snow showers Friday night. Waves 11 to 16 feet subsiding to 7 to
10 feet. Waves occasionally around 20 feet.
.SATURDAY...Northwest winds 15 to 20 knots becoming south 10 to
15 knots. A chance of snow showers. Waves 3 to 6 feet subsiding
to 1 to 3 feet.

$$

LOZ061-250400-
MAFOR 2422/
ONTARIO WEST 1/2 11500 15400 11306. Waves 2 feet or less.

ONTARIO EAST 1/2 11400 12410 11420 14410. A chance of showers
Tuesday afternoon. Waves 1 to 3 feet.

$$