471
FZUS61 KBUF 141402
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 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 continue to move east
over the western Atlantic today, while a ridge of high pressure
averaging 30.2 inches builds across 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.

LOZ062-142100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 AM EDT Tue Oct 14 2025

.THIS AFTERNOON...North winds 10 knots or less becoming west.
Waves 1 foot 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>065-142100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 AM EDT Tue Oct 14 2025

.THIS AFTERNOON...North winds 5 to 10 knots becoming west. Waves
1 foot 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.

$$

LOZ061-142100-
MAFOR 1415/
ONTARIO WEST 1/2 11700 12600 11710 14820. Waves 1 foot or less
this afternoon. Waves 1 to 3 feet building to 2 to 4 feet
tonight. Waves 2 to 4 feet Wednesday morning.

ONTARIO EAST 1/2 11800 11700 11600 11610 14820. Waves 1 foot or
less this afternoon. Waves 1 foot or less building to 3 to 5 feet
tonight. Waves 3 to 6 feet Wednesday morning.

$$