821
FZUS61 KBUF 142318
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
718 PM EDT Sun Jun 14 2026

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 cold front will drop south of the lower Great Lakes
this evening. Following the front, a 29.9 inch high will build
across the region through Monday, then exit off to our northeast
Tuesday while weakening to 29.8 inches. A 29.4 inch low will then
track north of the lake on Wednesday, with its trailing cold front
approaching the lake late in the day on Wednesday. A second 29.4
inch surface low will pass across the upper Great Lakes Thursday,
with a warm front, followed by a cold front to sweep across the lake
throughout the day.

LOZ062-150315-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
718 PM EDT Sun Jun 14 2026

.TONIGHT...West winds 10 to 15 knots becoming northwest 15 to
20 knots. Showers likely early. Waves 1 to 3 feet building to
3 to 5 feet.
.MONDAY...West winds 15 to 20 knots becoming southwest 10 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 to 2 feet.
.TUESDAY...Southwest winds 10 to 15 knots. Waves 2 feet or less.
.TUESDAY NIGHT...Southwest winds 5 to 15 knots becoming south. A
chance of showers overnight. Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots becoming southeast 15 to
20 knots. A chance of showers during the day, then showers with a
chance of thunderstorms Wednesday night. Waves 1 to 3 feet.
.THURSDAY...South winds to 30 knots becoming west. Showers with a
chance of thunderstorms during the day, then a chance of showers
Thursday night. Waves 4 to 7 feet building to 7 to 10 feet, then
subsiding to 5 to 8 feet. Waves occasionally around 13 feet.
.FRIDAY...West winds 15 to 20 knots. Waves 4 to 7 feet subsiding
to 2 to 4 feet. Waves occasionally around 9 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-150315-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
718 PM EDT Sun Jun 14 2026

.TONIGHT...West winds 5 to 15 knots increasing to 15 to 20 knots.
Showers this evening. Waves 1 to 3 feet building to 3 to 5 feet.
.MONDAY...West winds 15 to 20 knots. Waves 3 to 5 feet.
.MONDAY NIGHT...West winds 15 to 20 knots becoming southwest 5 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 2 feet.
.TUESDAY...South winds 5 to 10 knots. Waves 2 feet or less.
.TUESDAY NIGHT...South winds 5 to 15 knots. Waves 2 feet or less.
.WEDNESDAY...South winds 5 to 15 knots becoming southeast 15 to
20 knots. Showers likely with a chance of thunderstorms. Waves
1 to 3 feet.
.THURSDAY...Southeast winds to 30 knots becoming west. Showers
with a chance of thunderstorms during the day, then a chance of
showers Thursday night. Waves 4 to 7 feet building to 7 to
11 feet. Waves occasionally around 14 feet.
.FRIDAY...West winds 15 to 25 knots. Waves 6 to 9 feet subsiding
to 3 to 6 feet. Waves occasionally around 11 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-150315-
MAFOR 1500 AMD/
ONTARIO WEST 1/2 11610 11710 11720 11620 12610 11510. A chance of
showers through early evening. Waves 1 to 3 feet building to 3 to
5 feet tonight. Waves 3 to 5 feet subsiding to 1 to 3 feet
Monday.

ONTARIO EAST 1/2 11606 15620. Waves 1 to 3 feet building to 3 to
5 feet tonight. Waves 3 to 5 feet Monday.

$$

JJR