216
FZUS61 KBUF 072001
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
401 PM EDT Sat Jun 7 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 stalled out frontal boundary lying across the New England
Coastline will continue to slide south this afternoon, while a weak
30.0 inch high builds from the Upper Great Lakes to Quebec. The high
will then depart into the Canadian Maritimes Sunday while a 29.6
inch low pushes across the Ohio Valley. Another broad 29.6 inch low
will then slowly make its way from the Upper Great Lakes to James
Bay Monday and Tuesday, then to Labrador on Wednesday. A cold front
will then slide southeast across the central Great Lakes and eastern
Great Lakes Thursday.

LOZ062-080300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
401 PM EDT Sat Jun 7 2025

.TONIGHT...West winds 5 to 10 knots becoming east. Waves 1 foot
or less.
.SUNDAY...East winds 5 to 15 knots. A chance of showers late.
Waves 1 to 3 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots becoming southeast. A
chance of showers. Waves 1 to 3 feet.
.MONDAY...Southeast winds 10 to 15 knots becoming south. A chance
of showers in the morning, then showers likely with a chance of
thunderstorms in the afternoon. Waves 1 to 2 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Showers likely with a
chance of thunderstorms in the evening, then showers likely
overnight. Waves 1 to 2 feet.
.TUESDAY...Southwest winds 10 to 15 knots. A chance of showers.
Waves 1 to 3 feet.
.WEDNESDAY...Southwest winds 15 to 20 knots becoming west 10 to
15 knots. Waves 2 to 4 feet building to 3 to 5 feet, then
subsiding to 2 to 4 feet.
.THURSDAY...West winds 10 to 15 knots. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-080300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
401 PM EDT Sat Jun 7 2025

.TONIGHT...Northwest winds 5 to 10 knots becoming northeast.
Waves 1 foot or less.
.SUNDAY...Northeast winds 5 to 10 knots. Waves 2 feet or less.
.SUNDAY NIGHT...Northeast winds 5 to 15 knots becoming southeast.
A chance of showers. Waves 1 to 3 feet.
.MONDAY...Southeast winds 15 to 20 knots becoming south 10 to
15 knots. A chance of showers in the morning, then showers likely
with a chance of thunderstorms in the afternoon. Waves 1 to
3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Showers with a chance
of thunderstorms in the evening, then showers overnight. Waves
1 to 2 feet.
.TUESDAY...South winds 10 to 15 knots becoming southwest. Showers
likely with a chance of thunderstorms during the day, then a
chance of showers and thunderstorms Tuesday night. Waves 1 to
3 feet.
.WEDNESDAY...West winds 15 to 20 knots becoming southwest. A
chance of showers. Waves 1 to 3 feet building to 2 to 4 feet.
.THURSDAY...West winds 5 to 15 knots. Waves 2 to 4 feet subsiding
to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-080300-
MAFOR 0721/
ONTARIO WEST 1/2 11600 11700 11800 12200 13210. Waves 1 foot or
less tonight. Waves 1 to 3 feet Sunday.

ONTARIO EAST 1/2 12700 11800 14100 11100. Waves 1 foot or less.

$$