National Weather Service Marine Forecast FZUS61 KBUF

FZUS61 KBUF 032032
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
432 PM EDT Tue Oct 3 2023

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 broad 30.3 inch high across the lower Great Lakes will push southeast across the Mid Atlantic through Wednesday before becoming anchored over the Canadian maritimes Thursday and Thursday night. A 29.6 inch surface low will cross southern Ontario and Quebec Friday and Friday night, while also dragging a strong cold front across the lake. While this surface low will stall near Quebec on Saturday the cold front will push well east of the lake.

LOZ062-040330
Lake Ontario open waters from the Niagara River to Hamlin Beach
432 PM EDT Tue Oct 3 2023

TONIGHT
South winds less than 10 knots. Waves 1 foot or less.

WEDNESDAY
Light and variable winds becoming east 5 to 10 knots. Waves 1 foot or less.

WEDNESDAY NIGHT
East winds 10 knots or less becoming south. Waves 1 foot or less.

THURSDAY
South winds 15 to 20 knots diminishing to 10 to 15 knots. Waves 1 to 3 feet.

THURSDAY NIGHT
South winds 10 to 15 knots increasing to 15 to 20 knots. Showers. Waves 1 to 3 feet.

FRIDAY
South winds 15 to 20 knots becoming west 10 to 15 knots. Showers. Waves 2 to 4 feet.

SATURDAY
West winds 15 to 20 knots. Showers. Waves 2 to 4 feet building to 3 to 6 feet.

SUNDAY
West winds 15 to 25 knots. Showers likely. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves occasionally around 9 feet.

---

LOZ063>065-040330
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River
432 PM EDT Tue Oct 3 2023

TONIGHT
Southwest winds 5 to 10 knots becoming light and variable. Waves 1 foot or less.

WEDNESDAY
Southeast winds 10 knots or less becoming east. Waves 1 foot or less.

WEDNESDAY NIGHT
Southeast winds 5 to 15 knots becoming south. Waves 2 feet or less.

THURSDAY
South winds 15 to 20 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.

THURSDAY NIGHT
South winds 15 to 25 knots. A chance of showers in the evening, then showers likely overnight. Waves 2 to 4 feet building to 3 to 5 feet.

FRIDAY
South winds 15 to 25 knots becoming southwest and diminishing to 10 to 15 knots. Showers. Waves 3 to 6 feet subsiding to 2 to 4 feet.

SATURDAY
West winds 15 to 20 knots. Showers. Waves 2 to 4 feet building to 3 to 6 feet.

SUNDAY
West winds 15 to 25 knots. Showers likely. Waves 5 to 8 feet. Waves occasionally around 10 feet.

---

LOZ061-040330
MAFOR 0321/ ONTARIO WEST 1/2 11500 11400 11500 11600 11200 11300 12200. Waves 1 foot or less.

ONTARIO EAST 1/2 11500 14400 11400 11300 11200. Waves 1 foot or less.