Great Lakes Forecast
Issued by NWS

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350
FZUS61 KBUF 281402
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 AM EDT Mon Sep 28 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 29.7 inch low just south of Long Island this morning
will drift northeast along the New England coast through Tuesday
while filling to 29.8 inches. This low will finally 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.

LOZ062-282100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 AM EDT Mon Sep 28 2026

.THIS AFTERNOON...Northeast winds 10 knots or less becoming west.
Waves 1 to 3 feet.
.TONIGHT...West winds less than 10 knots. Waves 1 foot or less.
.TUESDAY...Light and variable winds. Waves 1 foot or less.
.TUESDAY NIGHT...Southeast winds less than 10 knots becoming
south. Waves 1 foot or less.
.WEDNESDAY...South winds 10 knots or less. Waves 2 feet or less.
.THURSDAY...Southwest winds 10 to 15 knots becoming west. Showers
likely Thursday night. Waves 1 to 3 feet building to 2 to 4 feet.
.FRIDAY...Northwest winds 5 to 10 knots. Showers likely during
the day. Waves 1 to 3 feet.

$$

LOZ063>065-282100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 AM EDT Mon Sep 28 2026

.THIS AFTERNOON...Northeast winds 10 to 15 knots. Waves 1 to
3 feet.
.TONIGHT...North winds 5 to 15 knots. Waves 2 feet or less.
.TUESDAY...North winds 10 knots or less. Waves 1 foot or less.
.TUESDAY NIGHT...Light and variable winds becoming south 5 to
10 knots. Waves 1 foot or less.
.WEDNESDAY...South winds 5 to 15 knots. Waves 2 feet or less.
.THURSDAY...South winds 15 to 20 knots becoming west. A chance of
showers Thursday night. Waves 1 to 3 feet building to 2 to
4 feet.
.FRIDAY...West winds 10 to 15 knots becoming northwest. A chance
of showers during the day. Waves 2 to 4 feet subsiding to 1 to
3 feet.

$$

LOZ061-282100-
MAFOR 2815/
ONTARIO WEST 1/2 11100 11400 12700 11800 13100. Waves 2 feet or
less.

ONTARIO EAST 1/2 12110 12810 14800. Waves 2 feet or less.

$$