Great Lakes Forecast
Issued by NWS

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548
FZUS61 KBUF 030303
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 PM EST Fri Jan 2 2026

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 28.8 inch low will move north across the Canadian
Maritimes through tonight, then to northern Quebec by Saturday. A
30.3 inch high will then build from the western Great Lakes Sunday
to the lower Great Lakes by early Monday, then drift off the east
coast Monday night. A weak trough of low pressure averaging 29.8
inches will cross the Great Lakes Tuesday through Tuesday night,
followed by a 30.1 inch high building into the Ohio Valley and lower
Great Lakes Wednesday.

LOZ062-031000-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 PM EST Fri Jan 2 2026

.OVERNIGHT...West winds 15 to 20 knots. Waves 4 to 7 feet.
Waves occasionally around 9 feet.
.SATURDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots. A chance of snow showers. Waves 3 to 6 feet subsiding
to 1 to 3 feet.
.SATURDAY NIGHT...West winds 10 to 15 knots. Snow showers. Waves
1 to 3 feet.
.SUNDAY...Northwest winds 10 to 15 knots increasing to 15 to
20 knots. A chance of snow showers in the morning. Waves 2 to
4 feet.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots becoming east and
diminishing to less than 10 knots overnight. Waves 2 to 4 feet
subsiding to 1 foot or less.
.MONDAY...Southeast winds 5 to 15 knots becoming south. Snow
showers likely during the day, then a chance of snow showers
Monday night. Waves 2 feet or less.
.TUESDAY...South winds 5 to 15 knots becoming southwest. A chance
of rain showers. Waves 2 feet or less.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves 1 to 3 feet.

$$

LOZ063>065-031000-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 PM EST Fri Jan 2 2026

.OVERNIGHT...West winds 15 to 20 knots becoming northwest.
Lake effect snow likely. Waves 4 to 7 feet. Waves occasionally
around 9 feet.
.SATURDAY...Northwest winds 15 to 20 knots diminishing to 5 to
15 knots. A chance of snow showers. Waves 4 to 7 feet subsiding
to 1 to 3 feet. Waves occasionally around 9 feet.
.SATURDAY NIGHT...Northwest winds 5 to 15 knots becoming north.
Snow showers. Waves 1 to 3 feet.
.SUNDAY...North winds 10 to 15 knots becoming northwest 15 to
20 knots. Snow showers likely in the morning, then a chance of
snow showers in the afternoon. Waves 2 to 4 feet building to 3 to
5 feet.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots becoming northeast
and diminishing to 5 to 10 knots. Waves 3 to 5 feet subsiding to
1 to 3 feet.
.MONDAY...Southeast winds 10 to 15 knots becoming south. A chance
of snow showers. Waves 1 to 3 feet.
.TUESDAY...South winds 5 to 15 knots becoming southwest. A chance
of rain showers during the day, then rain showers likely Tuesday
night. Waves 1 to 3 feet.
.WEDNESDAY...Southwest winds 15 to 20 knots becoming west 10 to
15 knots. Rain showers likely during the day. Waves 2 to 4 feet
subsiding to 1 to 3 feet.

$$

LOZ061-031000-
MAFOR 0304/
ONTARIO WEST 1/2 12620 12720 11710 12610 11617. Waves 4 to 7
feet, and occasionally around 9 feet overnight. Waves 3 to 6 feet
subsiding to 1 to 3 feet Saturday. Waves 1 to 3 feet Saturday
evening.

ONTARIO EAST 1/2 11627 12727 11720 11710 12700 11707. Waves 4 to
7 feet, and occasionally around 9 feet overnight. Waves 4 to 7
feet subsiding to 1 to 3 feet, and occasionally around 9 feet
Saturday. Waves 2 feet or less Saturday evening.

$$