378
FZUS61 KBUF 040201
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1001 PM EDT Tue Jun 3 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 30.2 inch high just off coast of the Mid Atlantic
states will continue to move into the Atlantic through Wednesday. A
cold front will cross the lower Great Lakes Thursday before stalling
across Ohio and Pennsylvania Thursday night. Several weak 29.6 inch
waves of low pressure will then ripple east along the stalled front
Friday through Saturday, with the final wave moving east across New
England Saturday night. Surface high pressure over the Ohio Valley
will ridge northward across the eastern Great Lakes Sunday.

LOZ062-040900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1001 PM EDT Tue Jun 3 2025

.OVERNIGHT...South winds 5 to 15 knots. Waves 1 to 2 feet.
.WEDNESDAY...South winds 10 to 15 knots becoming southwest 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet.
.WEDNESDAY NIGHT...Southwest winds 15 to 20 knots becoming west
5 to 15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.THURSDAY...West winds 5 to 10 knots. Showers likely. Waves 1 to
2 feet.
.THURSDAY NIGHT...West winds 5 to 10 knots becoming northwest. A
chance of showers in the evening. Waves around 1 foot.
.FRIDAY...North winds 5 to 10 knots becoming northeast. A chance
of showers. Waves around 1 foot.
.SATURDAY...Northeast winds 5 to 10 knots becoming northwest. A
chance of showers during the day. Waves around 1 foot.
.SUNDAY...West winds 5 to 10 knots becoming south. A chance of
showers Sunday night. Waves 1 foot or less.

$$

LOZ063>065-040900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1001 PM EDT Tue Jun 3 2025

.OVERNIGHT...South winds 10 to 15 knots. Waves 1 to 3 feet.
.WEDNESDAY...South winds 5 to 15 knots becoming southwest. Waves
1 to 3 feet.
.WEDNESDAY NIGHT...South winds 5 to 10 knots becoming southwest.
Waves 2 feet or less.
.THURSDAY...Southwest winds 5 to 10 knots becoming west. A chance
of showers in the morning, then a chance of showers and
thunderstorms in the afternoon. Waves 1 to 2 feet.
.THURSDAY NIGHT...West winds 5 to 10 knots. A chance of showers
and thunderstorms in the evening, then a chance of showers
overnight. Waves 1 foot or less.
.FRIDAY...North winds 5 to 10 knots becoming northeast. A chance
of showers. Waves 1 foot or less.
.SATURDAY...Northeast winds 5 to 10 knots becoming northwest. A
chance of showers. Waves 1 foot or less.
.SUNDAY...Northwest winds 5 to 15 knots becoming south. Waves
2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-040900-
MAFOR 0403/
ONTARIO WEST 1/2 11400 12410 11510 13520 11510. Waves 1 to 2 feet
overnight. Waves 1 to 3 feet building to 2 to 4 feet Wednesday.
Waves 2 to 4 feet subsiding to 1 to 3 feet Wednesday evening.

ONTARIO EAST 1/2 14410 11410 11500 12400. Waves 1 to 3 feet
overnight and Wednesday. Waves 2 feet or less Wednesday evening.

$$