730
FZUS61 KBUF 262102
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EST Wed Nov 26 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 29.3 inch low over the upper peninsula of Michigan
this evening will track northeast into lower Quebec by Thursday
morning. Meanwhile, a cold front over the center of the lake will
continue to exit east across the lake and into New England. The 29.3
inch surface low will 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. Another surface low
will cut northeastward through the Central Great Lakes Sunday,
deepening from 29.6 inches Sunday morning to 29.4 inches Sunday
night over western Quebec. A 30.5 inch surface high centered over
the Central Plains will then build east across the Great Lakes
Monday.

LOZ062-270400-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EST Wed Nov 26 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY EVENING...

.TONIGHT...Southwest gales to 35 knots increasing to 40 knots.
Lake effect rain showers likely early, then lake effect rain with
lake effect snow showers likely late this evening. A chance of
rain and snow showers after midnight. Waves 10 to 14 feet
building to 11 to 16 feet. Waves occasionally around 20 feet.
.THURSDAY...West gales to 35 knots. Rain showers likely with a
chance of snow showers in the morning, then lake effect rain and
snow in the afternoon. Waves 11 to 16 feet. Waves occasionally
around 20 feet.
.THURSDAY NIGHT...West gales to 35 knots diminishing to 30 knots
overnight. Lake effect snow. Waves 9 to 13 feet subsiding to 8 to
11 feet. Waves occasionally around 16 feet.
.FRIDAY...West winds to 30 knots. Lake effect snow showers
likely. Waves 8 to 11 feet. Waves occasionally around 14 feet.
.FRIDAY NIGHT...West winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. A chance of snow showers. Waves
6 to 10 feet subsiding to 5 to 8 feet. Waves occasionally around
13 feet.
.SATURDAY...West winds 15 to 20 knots becoming southeast. Lake
effect snow showers Saturday night. Waves 3 to 5 feet subsiding
to 2 to 4 feet.
.SUNDAY...South winds to 30 knots becoming west and diminishing
to 15 to 20 knots. Lake effect rain and snow showers during the
day, then lake effect rain showers Sunday night. Waves 3 to
6 feet building to 5 to 8 feet. Waves occasionally around
10 feet.
.MONDAY...West winds 15 to 20 knots becoming south 10 to
15 knots. A chance of lake effect snow showers Monday night.
Waves 3 to 6 feet subsiding to 1 to 2 feet.

$$

LOZ063-270400-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
402 PM EST Wed Nov 26 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY EVENING...

.TONIGHT...Southwest winds to 30 knots increasing to 35 knot
gales. Lake effect rain and snow showers likely. Waves 9 to
13 feet building to 11 to 15 feet. Waves occasionally around
19 feet.
.THURSDAY...West gales to 40 knots diminishing to 35 knots. Lake
effect rain and snow showers likely in the morning, then lake
effect rain with lake effect snow showers likely in the
afternoon. Waves 12 to 17 feet. Waves occasionally around
22 feet.
.THURSDAY NIGHT...West gales to 35 knots diminishing to 30 knots
overnight. Lake effect snow and lake effect rain in the evening,
then lake effect snow overnight. Waves 11 to 16 feet subsiding to
10 to 14 feet. Waves occasionally around 20 feet.
.FRIDAY...West winds to 30 knots increasing to 35 knot gales.
Lake effect snow in the morning, then lake effect snow showers
likely in the afternoon. Waves 10 to 14 feet. Waves occasionally
around 18 feet.
.FRIDAY NIGHT...West winds to 30 knots becoming northwest. Lake
effect snow showers likely. Waves 9 to 13 feet subsiding to 5 to
8 feet. Waves occasionally around 16 feet.
.SATURDAY...Northwest winds 15 to 25 knots becoming southeast.
Lake effect snow showers likely Saturday night. Waves 4 to 7 feet
subsiding to 3 to 6 feet. Waves occasionally around 9 feet.
.SUNDAY...South winds to 30 knots becoming west. Lake effect rain
and snow showers during the day, then lake effect rain showers
with a chance of lake effect snow showers Sunday night. Waves
5 to 8 feet. Waves occasionally around 10 feet.
.MONDAY...West winds 15 to 20 knots becoming south 10 to
15 knots. A chance of lake effect snow showers. Waves 4 to 7 feet
subsiding to 1 to 3 feet. Waves occasionally around 9 feet.

$$

LOZ064-065-270400-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
402 PM EST Wed Nov 26 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY EVENING...

.TONIGHT...West gales to 35 knots becoming southwest. A chance of
rain showers this evening, then lake effect rain showers likely
with a chance of lake effect snow showers after midnight. Waves
10 to 14 feet. Waves occasionally around 18 feet.
.THURSDAY...Southwest gales to 35 knots becoming west to
40 knots. Lake effect rain with lake effect snow showers likely
in the morning, then lake effect rain early in the afternoon.
Lake effect rain and snow late. Waves 12 to 17 feet. Waves
occasionally around 22 feet.
.THURSDAY NIGHT...West gales to 35 knots in the evening. Lake
effect snow and lake effect rain with a few rumbles of thunder
possible in the evening, then lake effect snow overnight. Waves
12 to 17 feet subsiding to 10 to 15 feet. Waves occasionally
around 22 feet.
.FRIDAY...West winds to 30 knots increasing to 35 knot gales.
Lake effect snow showers likely. Waves 10 to 15 feet. Waves
occasionally around 19 feet.
.FRIDAY NIGHT...Northwest winds to 30 knots. A chance of snow
showers. Waves 10 to 14 feet subsiding to 6 to 9 feet. Waves
occasionally around 18 feet.
.SATURDAY...Northwest winds 15 to 20 knots becoming southeast and
increasing to 30 knots. Lake effect snow showers likely Saturday
night. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves
occasionally around 9 feet.
.SUNDAY...South gales to 35 knots becoming west and diminishing
to 30 knots. Lake effect rain and snow showers during the day,
then lake effect rain showers with a chance of lake effect snow
showers Sunday night. Waves 6 to 10 feet. Waves occasionally
around 13 feet.
.MONDAY...West winds 15 to 20 knots becoming southeast 10 to
15 knots. A chance of lake effect snow showers. Waves 4 to 7 feet
subsiding to 1 to 3 feet. Waves occasionally around 9 feet.

$$

LOZ061-270400-
MAFOR 2622/
ONTARIO WEST 1/2...GALE WARNING IN EFFECT...11550 11556 11557
11550 12650 11656 11657. Waves 8 to 12 feet building to 12 to 16
feet, and occasionally around 20 feet tonight. Waves 12 to 16
feet, and occasionally around 20 feet Thursday.

ONTARIO EAST 1/2...GALE WARNING IN EFFECT...14550 11550 11557
11556 11656. A chance of rain showers this evening, then a chance
of lake effect rain showers overnight. Waves 4 to 7 feet building
to 10 to 15 feet, and occasionally around 19 feet tonight. Waves
12 to 17 feet, and occasionally around 22 feet Thursday.

$$