644
FZUS61 KBUF 150202
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 PM EDT Fri Aug 14 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 high pressure ridge averaging 30.2 inches builds from the Canadian
Prairies before settling over Lake Ontario and vicinity by Saturday.
The ridge begins to exit eastward Saturday night and a low of 29.7
inches should move generally east-southeastward from near the
northern Great Lakes to near the Gulf of Maine Saturday night
through Monday. This low track should allow a warm front to sweep
northeastward across Lake Ontario Saturday night and especially on
Sunday before a cold front sweeps eastward across the lake Sunday
evening through Sunday night. Behind the cold front, a high pressure
ridge averaging 30.0 inches should build slowly from the Upper
Midwest through Tuesday. A 29.7 inch low is expected to move across
the Central Great Lakes Wednesday and move across or near Lake
Ontario Wednesday night.

LOZ062-150900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 PM EDT Fri Aug 14 2026

.OVERNIGHT...East winds 10 knots or less. Waves 1 foot or
less.
.SATURDAY...East winds 5 to 15 knots. Waves 2 feet or less.
.SATURDAY NIGHT...East winds 10 to 15 knots becoming southeast.
Waves 1 to 2 feet.
.SUNDAY...Southeast winds around 10 knots becoming east. A chance
of showers in the morning, then showers with a chance of
thunderstorms in the afternoon. Waves 1 to 2 feet.
.SUNDAY NIGHT...North winds around 10 knots becoming northwest.
Showers with a chance of thunderstorms in the evening. Waves 1 to
2 feet.
.MONDAY...Northwest winds 5 to 10 knots. Waves 2 feet or less.
.TUESDAY...West winds 10 knots or less becoming southwest. Waves
2 feet or less.
.WEDNESDAY...Southwest winds 5 to 15 knots becoming west. A
chance of showers during the day, then showers likely Wednesday
night. Waves 2 feet or less building to 2 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-150900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 PM EDT Fri Aug 14 2026

.OVERNIGHT...Northeast winds 10 knots or less becoming
east. Waves 1 foot or less.
.SATURDAY...East winds 5 to 10 knots becoming northeast. Waves
1 foot or less.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots becoming
southeast. Waves 2 feet or less.
.SUNDAY...Southeast winds 10 to 15 knots. A chance of showers in
the morning, then showers with a chance of thunderstorms in the
afternoon. Waves 2 feet or less.
.SUNDAY NIGHT...South winds 10 to 15 knots becoming northwest.
Showers with a chance of thunderstorms in the evening, then
showers likely overnight. Waves 1 to 2 feet.
.MONDAY...Northwest winds 5 to 15 knots. Waves 2 feet or less.
.TUESDAY...West winds 10 knots or less becoming southwest 10 to
15 knots. Waves 2 feet or less.
.WEDNESDAY...Southwest winds 5 to 15 knots becoming west 15 to
20 knots. A chance of showers during the day, then showers likely
Wednesday night. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-150900-
MAFOR 1503/
ONTARIO WEST 1/2 14200 11200 13210. Waves 2 feet or less.

ONTARIO EAST 1/2 14200 13100 11200. Waves 1 foot or less.

$$