808
FZUS61 KBUF 110203
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 PM EDT Mon Aug 10 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 cold front will cross the lake late this evening.
Behind the cold front, a trough averaging 29.8 inches will linger
over the eastern Great Lakes through Thursday. A cold front sweeps
across the lake Thursday night, with a 30.2 inch high pressure ridge
building in from the upper Great Lakes on Friday.

LOZ062-110900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 PM EDT Mon Aug 10 2026

.REST OF TONIGHT...Northwest winds 5 to 10 knots. Waves 2 feet or
less.
.TUESDAY...West winds 5 to 10 knots becoming southwest. Waves
1 foot or less.
.TUESDAY NIGHT...West winds 10 knots or less becoming north.
Waves 1 foot or less.
.WEDNESDAY...Northwest winds less than 10 knots becoming
southwest. Waves 1 foot or less.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots becoming west. A
chance of showers. Waves 1 foot or less.
.THURSDAY...Northwest winds 5 to 10 knots. A chance of showers
during the day. Waves 1 foot or less.
.FRIDAY...North winds 5 to 10 knots becoming northeast. Waves
1 foot or less.
.SATURDAY...Northeast winds 10 knots or less becoming southeast.
Waves 1 foot or less.

$$

LOZ063>065-110900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 PM EDT Mon Aug 10 2026

.REST OF TONIGHT...Southwest winds 15 to 20 knots becoming
northwest 10 to 15 knots. A chance of showers and thunderstorms
late this evening. Waves 1 to 3 feet.
.TUESDAY...West winds 5 to 10 knots. Waves 2 feet or less.
.TUESDAY NIGHT...West winds 10 knots or less becoming northwest.
Waves 2 feet or less.
.WEDNESDAY...Northwest winds 10 knots or less becoming west.
Waves 1 foot or less.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. A chance of showers.
Waves 1 foot or less.
.THURSDAY...West winds 5 to 10 knots becoming northwest. A chance
of showers. Waves 2 feet or less.
.FRIDAY...North winds 5 to 15 knots becoming northeast. Waves
2 feet or less.
.SATURDAY...North winds 10 knots or less becoming southeast.
Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-110900-
MAFOR 1103/
ONTARIO WEST 1/2 11600 11700 14600 11600 11700. Waves 2 feet or
less.

ONTARIO EAST 1/2 11610 11710 15600. Waves 1 to 3 feet overnight.
Waves 2 feet or less Tuesday and Tuesday evening.

$$