116
FZUS61 KBUF 292003
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
403 PM EDT Tue Sep 29 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 29.9 inch low along the southern shores Maine, will
dissipate over the North Atlantic Wednesday as a 30.1 inch high
builds to just off the Mid Atlantic coast. A cold front over the
upper Great Lakes Wednesday night will cross the lower Great Lakes
Thursday night. A 30.4 inch high is then forecast to build into the
upper Great Lakes Friday and the lower Great Lakes by Saturday,
before exiting into northern Maine Sunday. Meanwhile, A cold front
will then cross the eastern Great Lakes Sunday into Monday.

LOZ062-300300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
403 PM EDT Tue Sep 29 2026

.TONIGHT...Southeast winds 5 to 10 knots becoming south. Waves
1 foot or less.
.WEDNESDAY...Southwest winds 10 knots or less becoming south.
Waves 1 foot or less.
.WEDNESDAY NIGHT...South winds 5 to 15 knots becoming southwest.
A chance of showers overnight. Waves 2 feet or less.
.THURSDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers. Waves 1 to 3 feet building to 2 to
4 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots becoming west. A
chance of showers in the evening, then showers overnight. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.FRIDAY...Northwest winds 5 to 15 knots becoming north. Showers
during the day, then a chance of showers Friday night. Waves 1 to
3 feet.
.SATURDAY...North winds 5 to 15 knots becoming southeast. Waves
2 feet or less.
.SUNDAY...South winds 5 to 15 knots becoming northwest 15 to
20 knots. Waves 2 feet or less building to 2 to 4 feet.

$$

LOZ063>065-300300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
403 PM EDT Tue Sep 29 2026

.TONIGHT...East winds 5 to 10 knots becoming south. Waves 1 foot
or less.
.WEDNESDAY...South winds 5 to 15 knots. Waves 2 feet or less.
.WEDNESDAY NIGHT...South winds 5 to 15 knots. Waves 2 feet or
less.
.THURSDAY...Southwest winds 15 to 20 knots. A chance of showers.
Waves 1 to 3 feet building to 2 to 4 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots becoming west. A
chance of showers in the evening, then showers likely overnight.
Waves 2 to 4 feet subsiding to 1 to 3 feet.
.FRIDAY...West winds 5 to 15 knots becoming north 15 to 20 knots.
Showers. Waves 1 to 3 feet building to 2 to 4 feet.
.SATURDAY...North winds 5 to 15 knots becoming southeast. Waves
1 to 3 feet subsiding to 1 foot or less.
.SUNDAY...South winds 10 to 15 knots becoming west 15 to
20 knots. A chance of showers. Waves 1 to 3 feet building to 3 to
5 feet.

$$

LOZ061-300300-
MAFOR 2921/
ONTARIO WEST 1/2 12300 12400 13500 11400. Waves 1 foot or less.

ONTARIO EAST 1/2 12200 12300 11410 13400. Waves 2 feet or less.

$$