510
FZUS61 KBUF 300202
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 PM EDT Tue Jul 29 2025

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 29.8 inch low over the Canadian Maritimes will move
off the east coast through Wednesday. A cold front will move across
the lake Wednesday morning. A 30.2 inch high over the Canadian
Rockies Wednesday will then settle across the Great Lakes region
through Friday and remain anchored over the Northeast through the
weekend.

LOZ062-300900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 PM EDT Tue Jul 29 2025

.OVERNIGHT...West winds 5 to 15 knots becoming north. Waves
1 foot or less.
.WEDNESDAY...Northwest winds 5 to 10 knots becoming west. Waves
1 foot or less.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 knots becoming
northeast 15 to 20 knots. A chance of showers overnight. Waves
1 foot or less building to 3 to 5 feet.
.THURSDAY...Northeast winds 15 to 20 knots becoming east 10 to
15 knots. A chance of showers. Waves 3 to 5 feet subsiding to
2 to 4 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots becoming northeast.
Waves 2 to 3 feet.
.FRIDAY...East winds 5 to 15 knots becoming northeast. Waves 1 to
3 feet.
.SATURDAY...North winds 5 to 10 knots becoming west. Waves 2 feet
or less.
.SUNDAY...West winds 5 to 10 knots becoming southwest. Waves
1 foot or less.

$$

LOZ063>065-300900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 PM EDT Tue Jul 29 2025

.OVERNIGHT...Southwest winds 5 to 10 knots becoming
northwest. Waves 1 foot or less.
.WEDNESDAY...West winds 5 to 10 knots. Waves 1 foot or less.
.WEDNESDAY NIGHT...Northwest winds 5 to 15 knots becoming
northeast 15 to 20 knots. A chance of showers overnight. Waves
2 feet or less building to 3 to 5 feet.
.THURSDAY...Northeast winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers. Waves 3 to 5 feet subsiding to
2 to 4 feet.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. Waves 1 to
3 feet building to 2 to 4 feet.
.FRIDAY...Northeast winds 5 to 15 knots. Waves 1 to 3 feet
subsiding to 1 foot or less.
.SATURDAY...North winds 5 to 10 knots becoming southwest. Waves
2 feet or less.
.SUNDAY...Southwest winds 5 to 10 knots. Waves 2 feet or less.

$$

LOZ061-300900-
MAFOR 3003/
ONTARIO WEST 1/2 11710 11800 13700 12600 11810. Waves 2 feet or
less.

ONTARIO EAST 1/2 11500 11700 12600 11700 12600 11810. Waves 1
foot or less.

$$