079
FZUS61 KBUF 180201
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1001 PM EDT Mon Aug 17 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 ridge of high pressure averaging 30.0 inches will
build over the lower Great Lakes tonight through Tuesday, then drift
to the eastern seaboard Wednesday. A cold front will cross the lake
Wednesday before another 30.1 inch high builds into the Great Lakes
Thursday through Friday.

LOZ062-180900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1001 PM EDT Mon Aug 17 2026

.OVERNIGHT...North winds 5 to 10 knots. Waves 2 feet or
less.
.TUESDAY...North winds 10 knots or less becoming southwest. Waves
1 foot or less.
.TUESDAY NIGHT...South winds 10 to 15 knots becoming southwest.
Showers likely overnight. Waves 2 feet or less.
.WEDNESDAY...Southwest winds 5 to 15 knots becoming west. Showers
likely. Waves 2 feet or less.
.WEDNESDAY NIGHT...West winds 5 to 10 knots becoming northwest.
Waves 2 feet or less.
.THURSDAY...Northwest winds 10 knots or less becoming north.
Waves 1 foot or less.
.FRIDAY...Northeast winds 10 knots or less becoming south. Waves
1 foot or less.
.SATURDAY...South winds 5 to 10 knots becoming southwest. A
chance of showers during the day, then showers likely Saturday
night. Waves 2 feet or less.

$$

LOZ063>065-180900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1001 PM EDT Mon Aug 17 2026

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

Winds and waves higher in and near thunderstorms.

$$

LOZ061-180900-
MAFOR 1803/
ONTARIO WEST 1/2 13800 11700 12600 11500 11510. Waves 2 feet or
less.

ONTARIO EAST 1/2 12100 11800 11700 13600 11500. Waves 2 feet or
less.

$$