068
FZUS61 KBUF 110802
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM EDT Mon May 11 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 30.4 inch high will build from the upper Great
Lakes today to the lower Great Lakes by Tuesday before drifting off
the east coast Tuesday night. A 29.7 inch low will then move from
the central Great Lakes Tuesday night to the lower Great Lakes
Wednesday before drifting to the eastern seaboard Thursday. This low
will remain over the Gulf of Maine through Friday before moving into
the Canadian Maritimes Saturday.

LOZ062-111500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Mon May 11 2026

.TODAY...Northwest winds 5 to 10 knots becoming west. A chance of
showers early. Waves 1 foot or less.
.TONIGHT...West winds 5 to 10 knots becoming northwest. Waves
1 foot or less.
.TUESDAY...North winds 10 knots or less becoming northeast. Waves
1 foot or less.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots. Showers. Waves
1 to 3 feet.
.WEDNESDAY...South winds 10 to 15 knots becoming west. Showers.
Waves 1 to 3 feet.
.THURSDAY...Northwest winds 5 to 10 knots. A chance of showers
during the day. Waves 1 to 2 feet.
.FRIDAY...West winds 5 to 10 knots becoming southwest. Waves
1 foot or less.

$$

LOZ063>065-111500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Mon May 11 2026

.TODAY...West winds 5 to 15 knots. A chance of showers this
morning. Waves 2 feet or less.
.TONIGHT...West winds 5 to 10 knots becoming north. Waves 2 feet
or less.
.TUESDAY...North winds 10 knots or less. Waves 1 foot or less.
.TUESDAY NIGHT...East winds 10 knots or less becoming southeast
and increasing to 15 to 20 knots overnight. Showers overnight.
Waves 1 foot or less building to 1 to 3 feet.
.WEDNESDAY...Southeast winds 15 to 25 knots becoming southwest
and diminishing to 5 to 15 knots. Showers. Waves 3 to 5 feet
subsiding to 1 to 3 feet.
.THURSDAY...West winds 5 to 10 knots becoming northwest. A chance
of showers during the day. Waves 2 feet or less.
.FRIDAY...Northwest winds 5 to 10 knots becoming southwest. Waves
1 foot or less.

$$

LOZ061-111500-
MAFOR 1109/
ONTARIO WEST 1/2 11700 14600 13700. A chance of showers this
morning. Waves 2 feet or less.

ONTARIO EAST 1/2 12600 12610 12600 11700 11800. Waves 2 feet or
less.

$$