478
FZUS61 KBUF 061402
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 AM EDT Mon Oct 6 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 large 30.3 inch high anchored near the Mid-Atlantic
coast will slowly drift offshore through tonight. A sharp cold front
will then push southeast across the lower Great Lakes between
Tuesday afternoon and early Tuesday evening. This will be followed
by a strong 30.4 inch high that will build from the upper Great
Lakes Wednesday to New York State Thursday...then will slide off the
New England coast Friday.

LOZ062-062100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 AM EDT Mon Oct 6 2025

.THIS AFTERNOON...Southwest winds 10 to 15 knots. Waves 1 to
3 feet.
.TONIGHT...Southwest winds 10 to 15 knots. A chance of showers
late. Waves 1 to 3 feet.
.TUESDAY...Southwest winds 15 to 20 knots becoming west. Showers.
Waves 1 to 3 feet building to 2 to 4 feet.
.TUESDAY NIGHT...Northwest winds 15 to 20 knots. Showers in the
evening, then showers likely overnight. Waves 3 to 5 feet.
.WEDNESDAY...North winds 15 to 20 knots becoming northeast. Waves
3 to 5 feet subsiding to 2 to 4 feet.
.THURSDAY...Northeast winds 5 to 15 knots becoming southeast.
Waves 1 to 3 feet subsiding to 1 foot or less.
.FRIDAY...South winds 10 knots or less becoming southwest. Waves
1 foot or less.

$$

LOZ063>065-062100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 AM EDT Mon Oct 6 2025

.THIS AFTERNOON...Southwest winds 5 to 15 knots becoming south.
Waves 2 feet or less.
.TONIGHT...South winds 5 to 15 knots. A chance of showers late.
Waves 1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots becoming southwest. Showers
in the morning, then showers with a chance of thunderstorms in
the afternoon. Waves 1 to 3 feet building to 2 to 4 feet.
.TUESDAY NIGHT...West winds 15 to 20 knots becoming northwest.
Showers with a chance of thunderstorms in the evening, then
showers overnight. Waves 2 to 4 feet building to 3 to 6 feet.
.WEDNESDAY...North winds 15 to 25 knots. A chance of showers
during the day. Waves 3 to 6 feet.
.THURSDAY...Northeast winds 15 to 20 knots becoming south and
diminishing to 5 to 10 knots. Waves 2 to 4 feet subsiding to
2 feet or less.
.FRIDAY...South winds 5 to 15 knots becoming southwest. Waves
2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-062100-
MAFOR 0615/
ONTARIO WEST 1/2 14510 11500 12510 11526. Waves 1 to 3 feet this
afternoon and tonight. Waves 1 to 3 feet building to 2 to 4 feet
Tuesday morning.

ONTARIO EAST 1/2 11510 11500 12400 13410 11426. Waves 2 feet or
less this afternoon. Waves 1 to 3 feet tonight. Waves 1 to 3 feet
building to 2 to 4 feet Tuesday morning.

$$