347
FZUS61 KBUF 290302
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 PM EST Fri Nov 28 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 29.5 inch surface low over eastern Quebec this evening
will slide to NewFoundland overnight. Meanwhile, a 30.5 inch surface
high will build south into the mid-Mississippi Valley tonight, then
to the Ohio Valley and lower Great Lakes Saturday. Another surface
low will cut northeastward through the central Great Lakes Sunday,
slowly deepening from 29.6 inches Sunday morning to 29.4 inches
Sunday night over western Quebec. A cold front from this low will
cross the Lake late Sunday night. A 30.4 inch surface high centered
over the Central Plains will then build east across the Great Lakes
Monday, sliding quickly to New England on Tuesday. A 29.7 inch
surface low off the Carolina coastline Tuesday morning will deepen
to 28.9 inches over southern Atlantic Canada by Wednesday.

LOZ062-291000-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 PM EST Fri Nov 28 2025

.OVERNIGHT...West winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. Waves 6 to 9 feet subsiding to
4 to 7 feet. Waves occasionally around 11 feet.
.SATURDAY...Northwest winds 15 to 20 knots becoming west 5 to
15 knots. A chance of snow showers late. Waves 3 to 6 feet
subsiding to 1 to 3 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots becoming southeast
and increasing to 15 to 25 knots. A chance of snow showers in the
evening, then snow showers overnight. Waves 1 to 3 feet building
to 3 to 5 feet.
.SUNDAY...South winds to 30 knots becoming southwest and
increasing to 40 knot gales in the afternoon. Rain and snow
showers in the morning, then rain showers in the afternoon. Waves
3 to 6 feet building to 9 to 12 feet. Waves occasionally around
15 feet.
.SUNDAY NIGHT...West gales to 35 knots becoming northwest and
diminishing to 30 knots overnight. Rain showers with a chance of
snow showers in the evening, then a chance of snow showers
overnight. Waves 8 to 12 feet. Waves occasionally around 15 feet.
.MONDAY...Northwest winds 15 to 25 knots becoming south and
diminishing to 5 to 15 knots. A chance of snow showers Monday
night. Waves 5 to 8 feet subsiding to 2 feet or less. Waves
occasionally around 10 feet.
.TUESDAY...Southwest winds 10 to 15 knots becoming northwest. A
chance of snow showers. Waves 1 to 2 feet.
.WEDNESDAY...West winds 15 to 25 knots increasing to 30 knots. A
chance of snow showers Wednesday night. Waves 2 to 3 feet
building to 5 to 8 feet. Waves occasionally around 10 feet.

$$

LOZ063-291000-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
1002 PM EST Fri Nov 28 2025

.OVERNIGHT...Northwest winds to 30 knots. A chance of snow
showers. Waves 8 to 12 feet subsiding to 7 to 10 feet. Waves
occasionally around 15 feet.
.SATURDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots. Snow showers likely early. Waves 5 to 8 feet subsiding
to 2 to 4 feet. Waves occasionally around 10 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots becoming
southeast and increasing to 15 to 25 knots. A chance of snow
showers in the evening, then snow showers overnight. Waves 1 to
2 feet building to 3 to 6 feet.
.SUNDAY...South winds to 30 knots becoming southwest. Snow and
rain showers. Waves 5 to 9 feet building to 7 to 10 feet. Waves
occasionally around 13 feet.
.SUNDAY NIGHT...Southwest gales to 35 knots becoming northwest
and diminishing to 30 knots overnight. Rain showers with snow
showers likely in the evening, then snow showers likely
overnight. Waves 10 to 14 feet. Waves occasionally around
18 feet.
.MONDAY...Northwest winds to 30 knots becoming south and
diminishing to 5 to 15 knots. A chance of snow showers Monday
night. Waves 8 to 11 feet subsiding to 1 to 2 feet. Waves
occasionally around 14 feet.
.TUESDAY...South winds 10 to 15 knots becoming northwest. Snow
showers likely during the day, then a chance of snow showers
Tuesday night. Waves 1 to 3 feet.
.WEDNESDAY...West winds 15 to 25 knots becoming southwest. A
chance of snow showers Wednesday night. Waves 2 to 3 feet
building to 6 to 9 feet. Waves occasionally around 11 feet.

$$

LOZ064-065-291000-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
1002 PM EST Fri Nov 28 2025

.OVERNIGHT...Northwest winds to 30 knots. Waves 9 to
12 feet subsiding to 7 to 10 feet. Waves occasionally around
15 feet.
.SATURDAY...Northwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. Waves 5 to 8 feet subsiding to
2 to 4 feet. Waves occasionally around 10 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots becoming southeast and
increasing to 30 knots overnight. Snow showers overnight. Waves
1 to 3 feet building to 3 to 6 feet.
.SUNDAY...South winds to 30 knots becoming southwest and
increasing to 40 knot gales in the afternoon. Snow and rain
showers. Waves 5 to 8 feet building to 10 to 13 feet. Waves
occasionally around 16 feet.
.SUNDAY NIGHT...Southwest gales to 35 knots becoming northwest
and diminishing to 30 knots overnight. Rain and snow showers.
Waves 10 to 15 feet. Waves occasionally around 19 feet.
.MONDAY...Northwest winds to 30 knots becoming south and
diminishing to 15 to 20 knots. Snow showers likely during the
day, then a chance of snow showers Monday night. Waves 9 to
12 feet subsiding to 1 to 3 feet. Waves occasionally around
15 feet.
.TUESDAY...South winds 15 to 20 knots becoming north 10 to
15 knots. Snow showers likely. Waves 1 to 3 feet.
.WEDNESDAY...West winds 10 to 15 knots becoming southwest and
increasing to 30 knots. A chance of snow showers during the day,
then snow showers likely Wednesday night. Waves 1 to 3 feet
building to 5 to 9 feet. Waves occasionally around 11 feet.

$$

LOZ061-291000-
MAFOR 2904/
ONTARIO WEST 1/2 12730 11720 13610 11500 11310. A chance of snow
showers Saturday evening. Waves 7 to 10 feet subsiding to 5 to 8
feet, and occasionally around 13 feet overnight. Waves 4 to 7
feet subsiding to 1 to 3 feet, and occasionally around 9 feet
Saturday. Waves 1 to 2 feet Saturday evening.

ONTARIO EAST 1/2 11740 12730 11720 11620 11610 11600 11400. A
chance of snow showers overnight and Saturday morning. Waves 9 to
12 feet subsiding to 7 to 10 feet, and occasionally around 15
feet overnight. Waves 5 to 8 feet subsiding to 2 to 4 feet, and
occasionally around 10 feet Saturday. Waves 1 to 3 feet Saturday
evening.

$$