842
FZUS61 KBUF 140802
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM EDT Tue Oct 14 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 29.6 inch coastal low will move east into the Atlantic
today, while a ridge of high pressure averaging 30.2 inches builds
into the lower Great Lakes. A cold front will move south across the
lake tonight. An expansive 30.3 inch high will then build from the
upper Great Lakes Wednesday to Quebec and the lower Great Lakes
Thursday through Friday. The large surface high will push off the
southeast coast on Saturday as a large surface low of 29.2 inches
tracks across Ontario, pushing its associated cold front across the
lake Saturday night.

LOZ062-141500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Tue Oct 14 2025

.TODAY...North winds 10 knots or less becoming west. Waves 2 feet
or less.
.TONIGHT...Northwest winds 10 to 15 knots becoming north 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet.
.WEDNESDAY...North winds 15 to 20 knots becoming northwest 10 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 knots becoming north
15 to 20 knots. Waves 2 to 4 feet.
.THURSDAY...North winds 5 to 15 knots. Waves 1 to 3 feet
subsiding to 1 foot or less.
.FRIDAY...Southwest winds 10 knots or less becoming south. A
chance of showers Friday night. Waves 1 foot or less.
.SATURDAY...South winds 10 to 15 knots becoming southwest. A
chance of showers during the day, then showers likely Saturday
night. Waves 1 to 2 feet.

$$

LOZ063>065-141500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Tue Oct 14 2025

.TODAY...Northeast winds 5 to 10 knots becoming west. Waves
2 feet or less.
.TONIGHT...West winds 10 to 15 knots becoming north 15 to
20 knots. Waves 1 to 3 feet building to 3 to 5 feet.
.WEDNESDAY...North winds 15 to 20 knots becoming northwest 10 to
15 knots. Waves 3 to 6 feet subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...North winds 10 to 15 knots increasing to 15 to
20 knots. Waves 1 to 3 feet building to 3 to 5 feet.
.THURSDAY...North winds 15 to 20 knots diminishing to 5 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.FRIDAY...North winds 10 knots or less becoming south. A chance
of showers Friday night. Waves 1 foot or less.
.SATURDAY...South winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers during the day, then showers likely
Saturday night. Waves 1 to 3 feet.

$$

LOZ061-141500-
MAFOR 1409/
ONTARIO WEST 1/2 11100 11800 11700 12600 11710 12820. Waves 2
feet or less today. Waves 1 to 3 feet building to 2 to 4 feet
tonight.

ONTARIO EAST 1/2 11100 12800 11700 11600 11610 12820. Waves 2
feet or less today. Waves 1 foot or less building to 3 to 5 feet
tonight.

$$