847
FZUS61 KBUF 021403
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 AM EDT Wed Jul 2 2025

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 30.0 inch high over the Ohio Valley will extend
northeastward across New York State today...then another weak cold
front will slowly cross the lake later tonight and Thursday. An
expansive 30.1 inch high will then build across the Great Lakes
Thursday night and Friday...before drifting to the eastern seaboard
Saturday. A wavy cold frontal boundary is then forecast to slowly
push southeastward across the Upper Great Lakes and southern Ontario
during Sunday.

LOZ062-022100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 AM EDT Wed Jul 2 2025

.THIS AFTERNOON...Southwest winds 10 to 15 knots. Waves 1 to
2 feet.
.TONIGHT...Southwest winds 10 to 15 knots becoming west. A chance
of showers and thunderstorms after midnight. Waves 1 to 3 feet.
.THURSDAY...West winds around 10 knots. A chance of showers and
thunderstorms in the morning. Waves 1 to 2 feet.
.THURSDAY NIGHT...Northwest winds 5 to 15 knots becoming north.
Waves 1 to 2 feet.
.FRIDAY...North winds 5 to 10 knots becoming south. Waves 1 foot
or less.
.SATURDAY...South winds 5 to 15 knots becoming southwest. Waves
2 feet or less.
.SUNDAY...Southwest winds 10 to 15 knots. A chance of showers and
thunderstorms Sunday night. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-022100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 AM EDT Wed Jul 2 2025

.THIS AFTERNOON...West winds 10 to 15 knots. Waves 1 to 2 feet.
.TONIGHT...Southwest winds 5 to 10 knots becoming west. A chance
of showers and thunderstorms late. Waves 1 to 2 feet.
.THURSDAY...West winds around 10 knots. A chance of showers and
thunderstorms. Waves 1 to 2 feet.
.THURSDAY NIGHT...West winds 5 to 10 knots becoming north. Waves
1 to 2 feet.
.FRIDAY...North winds 5 to 10 knots becoming south. Waves 2 feet
or less.
.SATURDAY...South winds 5 to 15 knots. Waves 2 feet or less.
.SUNDAY...Southwest winds 10 to 15 knots. A chance of showers and
thunderstorms Sunday night. Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-022100-
MAFOR 0215/
ONTARIO WEST 1/2 11500 13510 11500 12600 11700. A chance of
showers and thunderstorms overnight and Thursday morning. Waves 1
to 3 feet.

ONTARIO EAST 1/2 12610 14500 12600. A chance of showers and
thunderstorms Thursday morning. Waves 1 to 2 feet.

$$