325
FZUS61 KBUF 190241
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1041 PM EDT Tue Mar 18 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 ridge of high pressure averaging 30.1 inches will
remain in place along the eastern seaboard through Wednesday. A
strong 29.2 inch low will track across the Central Great Lakes
late Wednesday before reaching Quebec Thursday. A trailing strong
cold front will cross the Lake Thursday. A 30.2 inch high will
then build across the southeast States Thursday night through
Friday with a ridge extending northward through the Ohio Valley
and Lower Great Lakes.

LOZ062-190915-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1041 PM EDT Tue Mar 18 2025

.OVERNIGHT...East winds 5 to 10 knots becoming southeast.
Waves 1 foot or less.
.WEDNESDAY...Southeast winds 10 to 15 knots. Waves 2 feet or
less.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots becoming south
15 to 20 knots. A chance of showers overnight. Waves 1 to 3 feet
building to 2 to 4 feet.
.THURSDAY...South winds 15 to 25 knots becoming southwest. Rain.
Waves 2 to 4 feet building to 3 to 6 feet.
.THURSDAY NIGHT...West winds to 30 knots becoming northwest.
Waves 5 to 8 feet. Waves occasionally around 10 feet.
.FRIDAY...Northwest winds 15 to 25 knots becoming southwest and
diminishing to 10 to 15 knots. Waves 4 to 7 feet subsiding to
1 to 3 feet. Waves occasionally around 9 feet.
.SATURDAY...Southwest winds 15 to 20 knots becoming northwest. A
chance of rain showers. Waves 2 to 4 feet building to 3 to
5 feet.
.SUNDAY...Northwest winds 10 to 15 knots becoming east 15 to
20 knots. A chance of rain and snow showers Sunday night. Waves
2 to 4 feet.

$$

LOZ063>065-190915-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1041 PM EDT Tue Mar 18 2025

.OVERNIGHT...East winds 10 to 15 knots becoming southeast.
Waves 1 foot or less.
.WEDNESDAY...Southeast winds 10 to 15 knots becoming south 15 to
20 knots. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...South winds 15 to 25 knots. Waves 2 to 4 feet
building to 4 to 7 feet. Waves occasionally around 9 feet.
.THURSDAY...South winds 15 to 25 knots becoming southwest and
diminishing to 10 to 15 knots. Showers likely in the morning,
then rain in the afternoon. Waves 4 to 7 feet subsiding to 1 to
3 feet. Waves occasionally around 9 feet.
.THURSDAY NIGHT...Southwest winds 15 to 25 knots becoming
northwest. A chance of rain showers in the evening, then a chance
of rain and snow showers overnight. Waves 3 to 6 feet building to
5 to 9 feet. Waves occasionally around 11 feet.
.FRIDAY...Northwest winds 15 to 25 knots becoming south and
diminishing to 10 to 15 knots. Waves 5 to 8 feet subsiding to
1 to 3 feet. Waves occasionally around 10 feet.
.SATURDAY...South winds 15 to 20 knots becoming northwest. A
chance of rain showers. Waves 2 to 4 feet building to 3 to
6 feet.
.SUNDAY...Northwest winds 15 to 20 knots becoming east. A chance
of snow showers Sunday night. Waves 3 to 5 feet subsiding to 2 to
4 feet.

$$

LOZ061-190915-
MAFOR 1903/
ONTARIO WEST 1/2 14300 13310 11320. Waves 2 feet or less
overnight and Wednesday. Waves 1 to 3 feet building to 2 to 4
feet Wednesday evening.

ONTARIO EAST 1/2 12300 12310 11410 13420. Waves 1 foot or less
overnight. Waves 1 to 3 feet Wednesday. Waves 2 to 4 feet
building to 3 to 5 feet Wednesday evening.

$$