Great Lakes Forecast
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788
FZUS61 KBUF 241401
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1001 AM EDT Sat May 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 29.7 inch low will drift slowly from Maine to New
Brunswick through tonight. This weak low will then move slowly east
across the Canadian Maritimes Sunday, then into the North Atlantic
Monday. An expansive 30.4 inch high will then settle into the Great
Lakes Monday, and expand to southern New England by Tuesday before
drifting off the southern New England coast Wednesday. A dissipating
29.9 inch low will track just north of the lake on Thursday,
increasing the potential for showers.

LOZ062-242100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1001 AM EDT Sat May 24 2025

.REST OF TODAY...West winds 10 to 15 knots. Showers likely late
this morning, then scattered showers early this afternoon.
Showers likely late. Waves 1 to 3 feet.
.TONIGHT...West winds 10 to 15 knots. Scattered showers in the
evening. Waves 2 to 3 feet.
.SUNDAY...West winds 10 to 15 knots. A chance of showers in the
afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT...West winds 5 to 10 knots. A chance of showers in
the evening. Waves 1 to 2 feet.
.MONDAY...West winds 5 to 10 knots becoming northwest. Waves
1 foot or less.
.TUESDAY...Northeast winds 5 to 15 knots becoming east. Waves
2 feet or less.
.WEDNESDAY...East winds 10 to 15 knots becoming southeast. A
chance of showers. Waves 1 to 3 feet.

$$

LOZ063>065-242100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1001 AM EDT Sat May 24 2025

.REST OF TODAY...West winds 10 to 15 knots increasing to 15 to
20 knots. Occasional showers. Waves 1 to 3 feet building to 2 to
4 feet.
.TONIGHT...West winds 15 to 20 knots. Showers likely early, then
scattered showers late in the evening. Waves 2 to 4 feet.
.SUNDAY...West winds 10 to 15 knots. Waves 2 to 4 feet subsiding
to 1 to 3 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots. Waves 1 to 3 feet.
.MONDAY...West winds 10 knots or less becoming southwest. Waves
2 feet or less.
.TUESDAY...South winds 5 to 10 knots becoming southeast. Waves
1 foot or less.
.WEDNESDAY...Southeast winds 5 to 10 knots. A chance of showers.
Waves 2 feet or less.

$$

LOZ061-242100-
MAFOR 2415/
ONTARIO WEST 1/2 13610 19616 14610 11600. Waves 1 to 3 feet this
afternoon. Waves 2 to 4 feet tonight. Waves 1 to 3 feet Sunday
morning.

ONTARIO EAST 1/2 11610 19616 12616 11610 19616 14610. Waves 1 to
3 feet building to 2 to 4 feet this afternoon. Waves 2 to 4 feet
tonight. Waves 2 to 4 feet subsiding to 1 to 3 feet Sunday
morning.

$$