890
FZUS61 KBUF 292003
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Fri May 29 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 29.6 inch low will make its way southeastward across
New England tonight, with its trailing cold front crossing the lake
early this evening. A 30.2 inch high will then build across the
Great Lakes and Ohio Valley this weekend, with a 29.8 inch low
forecast to push south across New England Sunday night and Monday.
Another 30.3 inch high will then build south across the Great Lakes
Tuesday.

LOZ062-300300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Fri May 29 2026

.TONIGHT...Northwest winds 15 to 20 knots becoming north 10 to
15 knots. Waves 3 to 5 feet subsiding to 2 to 3 feet.
.SATURDAY...North winds 10 to 15 knots becoming west less than
10 knots. Waves 1 to 3 feet subsiding to 1 foot or less.
.SATURDAY NIGHT...West winds 10 knots or less. Waves 1 foot or
less.
.SUNDAY...West winds 5 to 15 knots. Waves 1 to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots becoming northwest.
Waves 2 feet or less.
.MONDAY...North winds less than 10 knots becoming northwest.
Waves 1 foot or less.
.TUESDAY...Northwest winds 10 knots or less. Waves 2 feet or
less.
.WEDNESDAY...West winds 10 knots or less. Waves 1 foot or less.

$$

LOZ063>065-300300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 PM EDT Fri May 29 2026

.TONIGHT...Northwest winds 15 to 25 knots becoming north. A
chance of showers early. Waves 3 to 6 feet building to 4 to
7 feet, then subsiding to 3 to 6 feet. Waves occasionally around
9 feet.
.SATURDAY...North winds 15 to 25 knots diminishing to 10 to
15 knots. Waves 3 to 6 feet subsiding to 1 to 3 feet.
.SATURDAY NIGHT...Northwest winds 10 knots or less becoming west.
Waves 2 feet or less.
.SUNDAY...West winds 5 to 15 knots increasing to 15 to 20 knots.
Waves 1 to 3 feet building to 2 to 4 feet.
.SUNDAY NIGHT...West winds 15 to 20 knots becoming northwest 5 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.MONDAY...North winds 10 knots or less becoming northwest. Waves
2 feet or less.
.TUESDAY...Northwest winds 10 knots or less. Waves 2 feet or
less.
.WEDNESDAY...Northwest winds 10 knots or less becoming west.
Waves 1 foot or less.

$$

LOZ061-300300-
MAFOR 2921/
ONTARIO WEST 1/2 11620 12820 13810 11800 11600. Waves 3 to 6 feet
subsiding to 2 to 4 feet tonight. Waves 1 to 3 feet Saturday.

ONTARIO EAST 1/2 11620 14830 12820 11810. A chance of showers
this evening. Waves 3 to 6 feet building to 4 to 7 feet, then
subsiding to 3 to 6 feet, and occasionally around 9 feet tonight.
Waves 3 to 6 feet subsiding to 1 to 3 feet Saturday.

$$