Great Lakes Forecast
Issued by NWS

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467
FZUS61 KBUF 311525
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1125 AM EDT Sat Oct 31 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 30.4 inch high will settle over the lower Great
Lakes today. This high will drift into the Mid Atlantic states
Sunday through Monday, then drift off the east coast by Tuesday. A
29.6 inch low is then forecast to move from the upper Mississippi
Valley Wednesday to the upper Great Lakes Thursday.

LOZ062-312100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1125 AM EDT Sat Oct 31 2026

.THIS AFTERNOON...West winds 5 to 15 knots. Waves 1 foot or less.
.TONIGHT...Southwest winds 10 knots or less. Waves 2 feet or
less.
.SUNDAY...South winds less than 10 knots. Waves 1 foot or less.
.SUNDAY NIGHT...Southeast winds 10 knots or less becoming
southwest. Waves 1 foot or less.
.MONDAY...Southwest winds 10 knots or less becoming south. A
chance of showers Monday night. Waves 1 foot or less.
.TUESDAY...South winds 5 to 10 knots. A chance of showers during
the day. Waves 1 foot or less.
.WEDNESDAY...South winds 10 to 15 knots. A chance of showers.
Waves 1 foot or less.

$$

LOZ063>065-312100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1125 AM EDT Sat Oct 31 2026

.THIS AFTERNOON...West winds 5 to 15 knots. Waves 1 foot or less.
.TONIGHT...West winds 5 to 15 knots becoming southwest less than
10 knots. Waves 2 feet or less.
.SUNDAY...Southwest winds 5 to 10 knots becoming southeast. Waves
1 foot or less.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots becoming southwest.
Waves 2 feet or less.
.MONDAY...Southwest winds 5 to 10 knots becoming south. Waves
2 feet or less.
.TUESDAY...South winds 5 to 15 knots increasing to 15 to
20 knots. A chance of showers during the day. Waves 1 to 3 feet.
.WEDNESDAY...South winds 15 to 20 knots. A chance of showers.
Waves 1 to 3 feet.

$$

LOZ061-312100-
MAFOR 3115/
ONTARIO WEST 1/2 11600 12610 14500 11400. Waves 2 feet or less.

ONTARIO EAST 1/2 11600 12610 12600 12500 11400. Waves 2 feet or
less.

$$