944
FZUS61 KBUF 151401
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1001 AM EDT Thu May 15 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 broad, weak 29.8 inch low will move from the Mid
Atlantic today to New England Friday. Meanwhile, a 29.0 inch low
over the upper Midwest Friday will weaken to 29.3 inches as it moves
east over the upper Great Lakes by Saturday morning, before entering
into central Quebec Sunday.

LOZ062-152100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1001 AM EDT Thu May 15 2025

.REST OF TODAY...Northeast winds 5 to 10 knots becoming east.
Patchy fog late this morning. Waves 1 foot or less.
.TONIGHT...East winds 5 to 10 knots. Showers likely with a chance
of thunderstorms late. Waves 1 foot or less.
.FRIDAY...Southeast winds 5 to 10 knots becoming southwest.
Showers with a chance of thunderstorms in the morning, then a
chance of showers in the afternoon. Waves 2 feet or less.
.FRIDAY NIGHT...South winds 5 to 10 knots. Showers with a chance
of thunderstorms overnight. Waves 1 to 2 feet.
.SATURDAY...South winds 15 to 20 knots becoming west. Showers
with a chance of thunderstorms during the day, then a chance of
showers Saturday night. Waves 1 to 3 feet building to 3 to
5 feet.
.SUNDAY...West winds 15 to 20 knots becoming northwest 10 to
15 knots. Waves 3 to 5 feet subsiding to 2 to 4 feet.
.MONDAY...Northwest winds 10 to 15 knots becoming north. Waves
1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-152100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1001 AM EDT Thu May 15 2025

.REST OF TODAY...Southeast winds 5 to 10 knots becoming
northeast. Patchy fog. A chance of showers late. Waves 1 foot or
less.
.TONIGHT...East winds 10 knots or less becoming southeast. Patchy
fog after midnight. A chance of showers and thunderstorms late.
Waves 1 foot or less.
.FRIDAY...Southeast winds 5 to 10 knots becoming south. Patchy
fog in the morning. Showers with a chance of thunderstorms. Waves
1 foot or less.
.FRIDAY NIGHT...South winds 5 to 10 knots. A chance of showers in
the evening, then a chance of showers and thunderstorms
overnight. Waves 1 foot or less.
.SATURDAY...South winds 10 to 15 knots becoming west 15 to
20 knots. Showers with a chance of thunderstorms during the day,
then showers likely Saturday night. Waves 1 to 2 feet building to
3 to 5 feet.
.SUNDAY...West winds 15 to 20 knots becoming northwest. A chance
of showers. Waves 3 to 6 feet building to 4 to 7 feet, then
subsiding to 3 to 6 feet. Waves occasionally around 9 feet.
.MONDAY...Northwest winds 15 to 20 knots becoming north 10 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-152100-
MAFOR 1515/
ONTARIO WEST 1/2 15200 11300 11306. A chance of thunderstorms
overnight and Friday morning. Waves 1 foot or less.

ONTARIO EAST 1/2 11300 12100 11200 13300 11306. A chance of
thunderstorms Friday morning. Waves 1 foot or less.

$$