100
FZUS61 KBUF 100902
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM 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 29.7 inch low off the southern New England coast will
strengthen to 29.1 inches while moving north across Quebec by
Tuesday. Another 29.2 inch low will move east across Hudson Bay
Wednesday. A 30.1 inch high will then build from the Canadian
Prairies Thursday to northwest Ontario province Friday while
strengthening to 30.3 inches.

LOZ062-101600-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EST Mon Nov 10 2025

.TODAY...North winds 15 to 20 knots becoming northwest. A chance
of snow showers early, then snow showers likely late this
morning. A chance of snow showers this afternoon. Waves 3 to
5 feet subsiding to 2 to 4 feet.
.TONIGHT...Northwest winds 15 to 25 knots. A chance of snow
showers early, then snow showers likely. A chance of snow showers
late. Waves 3 to 6 feet.
.TUESDAY...Northwest winds to 30 knots becoming west. A chance of
snow showers in the morning, then snow showers likely with a
chance of rain showers in the afternoon. Waves 5 to 8 feet
building to 7 to 10 feet. Waves occasionally around 13 feet.
.TUESDAY NIGHT...West winds to 30 knots becoming southwest. Lake
effect rain with a chance of lake effect snow showers in the
evening, then lake effect rain overnight. Waves 6 to 10 feet.
Waves occasionally around 13 feet.
.WEDNESDAY...West gales to 35 knots. Lake effect rain during the
day, then rain showers likely Wednesday night. Waves 8 to 12 feet
subsiding to 7 to 10 feet. Waves occasionally around 15 feet.
.THURSDAY...West winds to 30 knots diminishing to 15 to 25 knots.
Showers likely during the day, then a chance of showers Thursday
night. Waves 7 to 11 feet subsiding to 3 to 6 feet. Waves
occasionally around 14 feet.
.FRIDAY...West winds 10 to 15 knots becoming northeast. A chance
of rain showers during the day. Waves 2 to 4 feet subsiding to
1 to 3 feet.

$$

LOZ063>065-101600-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EST Mon Nov 10 2025

.TODAY...North winds 15 to 20 knots becoming northwest. A chance
of snow showers through early afternoon, then snow showers likely
late. Waves 2 to 4 feet.
.TONIGHT...Northwest winds 15 to 25 knots. A chance of snow
showers in the evening, then snow showers likely after midnight.
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
showers likely. Waves 5 to 8 feet building to 9 to 12 feet. Waves
occasionally around 15 feet.
.TUESDAY NIGHT...West winds to 30 knots becoming southwest. Lake
effect rain with lake effect snow showers likely. Waves 8 to
12 feet. Waves occasionally around 15 feet.
.WEDNESDAY...West gales to 35 knots diminishing to 30 knots. Lake
effect rain. Waves 8 to 11 feet building to 10 to 14 feet. Waves
occasionally around 18 feet.
.THURSDAY...West winds to 30 knots diminishing to 15 to 20 knots.
Rain showers. Waves 8 to 12 feet subsiding to 5 to 8 feet. Waves
occasionally around 15 feet.
.FRIDAY...Northwest winds 15 to 20 knots becoming north 10 to
15 knots. Rain showers likely during the day, then a chance of
rain and snow showers Friday night. Waves 3 to 6 feet subsiding
to 1 to 3 feet.

$$

LOZ061-101600-
MAFOR 1010/
ONTARIO WEST 1/2 12820 12710 13720 11730. A chance of snow
showers. Waves 3 to 5 feet subsiding to 2 to 4 feet today. Waves
3 to 6 feet tonight.

ONTARIO EAST 1/2 11820 11810 12710 13720 11730. A chance of snow
showers. Waves 2 to 4 feet subsiding to 1 to 3 feet, then
building to 2 to 4 feet today. Waves 2 to 4 feet building to 4 to
7 feet, and occasionally around 9 feet tonight.

$$