099
FZUS61 KBUF 102102
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EST Mon Nov 10 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 29.4 inch low along the New England coast this evening
will move north across Quebec overnight through Tuesday while
deepening to 28.9 inches. This low will then exit northeast across
Labrador Wednesday. Another 29.2 inch low will develop south of Nova
Scotia Thursday, then move north across the Canadian Maritimes
Friday, remaining in place through Saturday. Meanwhile, a 30.1 inch
high will then build from northwest Ontario province Friday to James
Bay and the lower Great Lakes by Saturday.

LOZ062-110400-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EST Mon Nov 10 2025

.TONIGHT...Northwest winds 15 to 25 knots. Snow likely this
evening, then a chance of snow showers after midnight. Snow
likely late. Waves 3 to 5 feet building to 4 to 7 feet. Waves
occasionally around 9 feet.
.TUESDAY...Northwest winds to 30 knots becoming west. A chance of
snow in the morning, then a chance of rain and snow early in the
afternoon. A chance of rain late. Waves 5 to 8 feet building to
6 to 9 feet. Waves occasionally around 11 feet.
.TUESDAY NIGHT...West winds to 30 knots becoming southwest. Rain.
Waves 6 to 9 feet. Waves occasionally around 11 feet.
.WEDNESDAY...Southwest winds to 30 knots becoming west. Rain.
Waves 6 to 10 feet. Waves occasionally around 13 feet.
.WEDNESDAY NIGHT...West winds to 30 knots. Rain. Waves 6 to
9 feet. Waves occasionally around 11 feet.
.THURSDAY...West winds to 30 knots diminishing to 15 to 20 knots.
Showers likely during the day, then a chance of showers Thursday
night. Waves 6 to 9 feet subsiding to 3 to 5 feet. Waves
occasionally around 11 feet.
.FRIDAY...Northwest winds 10 to 15 knots becoming northeast.
Waves 1 to 3 feet.
.SATURDAY...Northeast winds 5 to 15 knots becoming southeast. A
chance of rain showers Saturday night. Waves 1 to 3 feet.

$$

LOZ063>065-110400-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 PM EST Mon Nov 10 2025

.TONIGHT...Northwest winds 15 to 25 knots. Snow. Waves 2 to
4 feet building to 5 to 8 feet. Waves occasionally around
10 feet.
.TUESDAY...Northwest winds to 30 knots becoming west. Snow likely
in the morning, then a chance of snow and rain early in the
afternoon. A chance of rain late. Waves 6 to 10 feet building to
8 to 12 feet. Waves occasionally around 15 feet.
.TUESDAY NIGHT...West winds to 30 knots becoming southwest. Rain
in the evening, then rain and snow overnight. Waves 7 to 11 feet.
Waves occasionally around 14 feet.
.WEDNESDAY...Southwest winds to 30 knots becoming west. Rain and
snow in the morning, then rain in the afternoon. Waves 6 to
10 feet building to 8 to 11 feet. Waves occasionally around
14 feet.
.WEDNESDAY NIGHT...West winds to 30 knots. Rain. Waves 8 to
12 feet. Waves occasionally around 15 feet.
.THURSDAY...West winds to 30 knots becoming northwest 15 to
25 knots. Rain showers. Waves 8 to 11 feet subsiding to 4 to
7 feet. Waves occasionally around 14 feet.
.FRIDAY...Northwest winds 10 to 15 knots becoming north. A chance
of rain showers during the day. Waves 2 to 4 feet subsiding to
1 to 3 feet.
.SATURDAY...Northeast winds 5 to 15 knots becoming southeast. A
chance of rain showers Saturday night. Waves 1 to 3 feet.

$$

LOZ061-110400-
MAFOR 1022/
ONTARIO WEST 1/2 13727 11737 11730 11740 12640. Waves 3 to 6 feet
building to 4 to 7 feet, and occasionally around 9 feet tonight.
Waves 5 to 9 feet building to 7 to 10 feet, and occasionally
around 13 feet Tuesday.

ONTARIO EAST 1/2 13727 12737 11747 11740 11640. A chance of rain
Tuesday afternoon. Waves 2 to 4 feet building to 5 to 8 feet, and
occasionally around 10 feet tonight. Waves 6 to 10 feet building
to 8 to 12 feet, and occasionally around 15 feet Tuesday.

$$