585
FZUS61 KBUF 070802
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM EDT Sun Sep 7 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 29.2 inch low pressure system will move through
northern Quebec into the Labrador Sea through the day today. An
expansive 30.3 inch high will then build into the Great Lakes and
Ohio Valley later Sunday into Monday, before drifting east across
New England through Wednesday.

LOZ062-071500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Sun Sep 7 2025

.TODAY...West winds 15 to 20 knots. Waves 2 to 4 feet subsiding
to 1 to 3 feet.
.TONIGHT...West winds 15 to 20 knots becoming northwest 10 to
15 knots. Waves 1 to 3 feet.
.MONDAY...Northwest winds 5 to 10 knots becoming southwest. Waves
2 feet or less.
.MONDAY NIGHT...Southwest winds 5 to 10 knots becoming south.
Waves 1 foot or less.
.TUESDAY...Southeast winds 5 to 10 knots becoming south. Waves
1 foot or less.
.WEDNESDAY...Northwest winds 10 knots or less. Waves 1 foot or
less.
.THURSDAY...North winds 5 to 15 knots becoming northeast. Waves
1 to 3 feet.

$$

LOZ063>065-071500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Sun Sep 7 2025

.TODAY...West winds 15 to 20 knots. A chance of waterspouts
through early afternoon. A chance of showers through early
afternoon. Waves 2 to 4 feet.
.TONIGHT...West winds 15 to 20 knots becoming northwest 10 to
15 knots. A chance of showers. Waves 2 to 4 feet subsiding to
1 to 3 feet.
.MONDAY...Northwest winds 5 to 15 knots becoming west. Waves 1 to
3 feet.
.MONDAY NIGHT...West winds 5 to 15 knots becoming south. Waves
2 feet or less.
.TUESDAY...Southeast winds 5 to 15 knots becoming south. Waves
2 feet or less.
.WEDNESDAY...South winds 5 to 15 knots becoming west 10 knots or
less. Waves 2 feet or less.
.THURSDAY...North winds 5 to 15 knots becoming northeast. Waves
1 to 3 feet.

$$

LOZ061-071500-
MAFOR 0709/
ONTARIO WEST 1/2 13620 12610 13710. Waves 2 to 4 feet subsiding
to 1 to 3 feet.

ONTARIO EAST 1/2 13620 11610 11620 11610 12710. A chance of
waterspouts this morning. A chance of showers this morning. Waves
2 to 4 feet today. Waves 2 to 4 feet subsiding to 1 to 3 feet
tonight.

$$