Great Lakes Forecast
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623
FZUS61 KBUF 030803
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM 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 over the Central Great Lakes this
morning will expand to the Ohio Valley and eastern seaboard today
through Thursday. This high will eventually drift off the southeast
coast Friday. A weak cold front will then settle south across the
lower Great Lakes Saturday into Sunday.

LOZ062-031500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Wed Jun 3 2026

.TODAY...West winds 5 to 10 knots becoming southwest. Waves
1 foot or less.
.TONIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or less.
.THURSDAY...Southwest winds 5 to 15 knots. Waves 2 feet or less.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Waves 1 to
3 feet.
.FRIDAY...Southwest winds 10 to 15 knots. Showers likely Friday
night. Waves 1 to 2 feet building to 2 to 4 feet.
.SATURDAY...Southwest winds 10 to 15 knots becoming west. 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.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-031500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Wed Jun 3 2026

.TODAY...West winds 5 to 15 knots. Waves 2 feet or less.
.TONIGHT...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. A chance of showers
Friday night. Waves 1 to 3 feet.
.SATURDAY...Southwest winds 5 to 15 knots becoming west. Showers
likely with a chance of thunderstorms. Waves 1 to 2 feet.
.SUNDAY...North winds 5 to 15 knots becoming east. Showers likely
with a chance of thunderstorms during the day, then a chance of
showers Sunday night. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-031500-
MAFOR 0309/
ONTARIO WEST 1/2 13600 12500 11600 12500. Waves 1 foot or less.

ONTARIO EAST 1/2 13600 11610 14500. Waves 2 feet or less.

$$