FZUS61 KBUF 102002
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Wed Jun 10 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 warm front will continue northeast of the lake this
evening. Another warm front will cross the lake Thursday night ahead
of a 29.7 inch trough that will cross the lake later Friday.
Associated with the trough, an attendant cold front across the lake
Friday afternoon and evening. A 30.0 inch high will ridge across the
lower Great Lakes Friday night through Sunday morning, before a cold
front crosses the region later Sunday or Sunday night. The eastern
edge of a 30.1 inch high over the central portion of the CONUS will
push over the lake on Monday.

LOZ062-110300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Wed Jun 10 2026

.TONIGHT...West winds 5 to 15 knots becoming southwest. A chance
of showers and thunderstorms after midnight. Waves 1 to 2 feet.
.THURSDAY...Southwest winds 10 to 15 knots. A chance of showers
early. Waves 1 to 2 feet.
.THURSDAY NIGHT...West winds 5 to 15 knots becoming south. Waves
1 to 2 feet.
.FRIDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of showers and thunderstorms. Waves 1 to
3 feet building to 2 to 4 feet.
.FRIDAY NIGHT...West winds 5 to 15 knots. A chance of showers in
the evening. Waves 2 to 3 feet.
.SATURDAY...West winds 10 to 15 knots becoming southwest. A
chance of showers and thunderstorms Saturday night. Waves 1 to
3 feet.
.SUNDAY...Southwest winds 10 to 15 knots becoming west. Showers
likely with a chance of thunderstorms during the day, then
showers likely Sunday night. Waves 1 to 3 feet.
.MONDAY...West winds 5 to 15 knots becoming northwest. Waves 1 to
2 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-110300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 PM EDT Wed Jun 10 2026

.TONIGHT...Southwest winds 5 to 10 knots. A chance of showers
late. Waves 2 feet or less.
.THURSDAY...Southwest winds 5 to 15 knots becoming west. A chance
of showers through early afternoon. Waves 2 feet or less.
.THURSDAY NIGHT...West winds 10 knots or less becoming southwest.
Waves 2 feet or less.
.FRIDAY...South winds 5 to 15 knots becoming west 15 to 20 knots.
Showers with a chance of thunderstorms. Waves 1 to 3 feet.
.FRIDAY NIGHT...West winds 15 to 20 knots diminishing to 5 to
15 knots. Showers in the evening. Waves 2 to 4 feet subsiding to
1 to 3 feet.
.SATURDAY...West winds 5 to 15 knots becoming south. A chance of
showers and thunderstorms Saturday night. Waves 1 to 2 feet.
.SUNDAY...Southwest winds 10 to 15 knots becoming west. Showers
likely with a chance of thunderstorms during the day, then
showers likely Sunday night. Waves 1 to 3 feet.
.MONDAY...West winds 5 to 15 knots becoming south. Waves 1 to
3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-110300-
MAFOR 1021/
ONTARIO WEST 1/2 11510 14500 12510 11610. A chance of showers
overnight. Waves 2 feet or less.

ONTARIO EAST 1/2 11400 15500 11600. A chance of showers and
thunderstorms early this evening. A chance of showers overnight.
A chance of showers Thursday morning. Waves 1 foot or less.

$$