Great Lakes Forecast
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836
FZUS61 KBUF 040203
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1003 PM EDT Wed Jun 3 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 expand to the Ohio Valley and
eastern seaboard through Thursday. This high will then drift off the
southeast coast Friday. A weak cold front will settle south across
the lower Great Lakes Saturday through Saturday night. High pressure
averaging 30.4 inches will build southeast into the region starting
early Monday and center near or just east of the lake through
Wednesday.

LOZ062-040900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1003 PM EDT Wed Jun 3 2026

.OVERNIGHT...West winds 5 to 10 knots becoming southwest.
Waves 1 foot or less.
.THURSDAY...Southwest winds 5 to 15 knots. Waves 2 feet or less.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots. Waves 1 to
3 feet.
.FRIDAY...Southwest winds 5 to 15 knots increasing to 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet.
.FRIDAY NIGHT...Southwest winds 15 to 20 knots. Showers likely
overnight. Waves 2 to 4 feet.
.SATURDAY...Southwest winds 15 to 20 knots becoming northwest
5 to 15 knots. Showers with a chance of thunderstorms. Waves 1 to
3 feet.
.SUNDAY...North winds 5 to 10 knots becoming northeast. A chance
of showers during the day. Waves 2 feet or less.
.MONDAY...East winds 5 to 15 knots. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-040900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1003 PM EDT Wed Jun 3 2026

.OVERNIGHT...Southwest winds 5 to 10 knots. Waves 1 to
2 feet.
.THURSDAY...Southwest winds 5 to 10 knots. Waves 2 feet or less.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves 2 feet or
less.
.FRIDAY...Southwest winds 5 to 15 knots. Waves 2 feet or less.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. A chance of
showers overnight. Waves 1 to 3 feet.
.SATURDAY...Southwest winds 5 to 15 knots becoming northwest.
Showers likely. Waves 1 to 3 feet.
.SUNDAY...North winds 5 to 15 knots becoming east. A chance of
showers during the day. Waves 2 feet or less.
.MONDAY...East winds 5 to 10 knots becoming southeast. Waves
2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-040900-
MAFOR 0403/
ONTARIO WEST 1/2 14500 11500 13510. Waves 2 feet or less
overnight and Thursday. Waves 1 to 3 feet Thursday evening.

ONTARIO EAST 1/2 16500. Waves 2 feet or less.

$$