FZUS61 KBUF 292004
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
403 PM EDT Sun Mar 29 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 30.6 inch high will continue to drift off the Mid
Atlantic coast tonight. A 30.0 inch trough will sag southward across
eastern Canada Monday, then move across the eastern Great Lakes
Monday night, followed by a deeper 29.5 inch low Tuesday night into
early Wednesday. A strong 30.7 inch high across Quebec is then
forecast to extend down across the lake Thursday.

LOZ062-300300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
403 PM EDT Sun Mar 29 2026

.TONIGHT...South winds 10 to 15 knots becoming southwest. Waves
1 to 3 feet.
.MONDAY...Southwest winds 10 to 15 knots. Waves 2 to 3 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots becoming southeast.
A chance of showers in the evening, then showers likely
overnight. Waves 1 to 2 feet.
.TUESDAY...Southeast winds 10 to 15 knots becoming south 15 to
20 knots. Rain. Waves 1 to 3 feet building to 3 to 5 feet.
.TUESDAY NIGHT...Southwest winds 15 to 25 knots becoming west.
Rain with a chance of thunderstorms in the evening, then rain
overnight. Waves 3 to 6 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots becoming northeast.
Rain likely during the day, then a chance of rain and snow
showers Wednesday night. Waves 3 to 6 feet.
.THURSDAY...Northeast winds to 30 knots becoming east. Rain
showers with snow showers likely. Waves 6 to 10 feet building to
7 to 11 feet. Waves occasionally around 14 feet.
.FRIDAY...Southeast winds 15 to 20 knots becoming northeast. Rain
showers likely during the day, then a chance of rain showers
Friday night. Waves 5 to 8 feet subsiding to 3 to 5 feet. Waves
occasionally around 10 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-300300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
403 PM EDT Sun Mar 29 2026

.TONIGHT...South winds 5 to 15 knots. Waves 1 to 2 feet.
.MONDAY...Southwest winds 10 to 15 knots. Waves 1 to 3 feet.
.MONDAY NIGHT...Southwest winds 5 to 10 knots becoming east. A
chance of rain showers in the evening, then rain showers likely
overnight. Waves 1 to 3 feet.
.TUESDAY...East winds 10 to 15 knots becoming southeast. Rain.
Waves 1 to 3 feet.
.TUESDAY NIGHT...South winds 15 to 20 knots becoming west. Rain
with a chance of thunderstorms. Waves 1 to 3 feet building to
3 to 6 feet.
.WEDNESDAY...West winds 15 to 20 knots becoming northeast. Rain
during the day, then a chance of rain and snow showers Wednesday
night. Waves 3 to 6 feet subsiding to 3 to 5 feet.
.THURSDAY...Northeast winds 15 to 25 knots becoming east to
30 knots. Rain showers with snow showers and freezing rain
likely. Waves 5 to 8 feet building to 5 to 9 feet. Waves
occasionally around 11 feet.
.FRIDAY...Southeast winds 15 to 25 knots becoming northeast. Rain
showers. Waves 4 to 7 feet subsiding to 2 to 4 feet. Waves
occasionally around 9 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-300300-
MAFOR 2921/
ONTARIO WEST 1/2 11410 12400 11500 14510. Waves 1 to 3 feet.

ONTARIO EAST 1/2 13400 11410 13510 11610. Waves 1 to 3 feet.

$$