Experimental Modernized Open Lake Forecast

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Latest Drought Information for Western NY and the Eastern Lake Ontario Region

NZUS99 KBUF 011452
GLFLOT

Experimental Tabular Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1052 AM EDT Sat Nov 1 2025

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 28.7 inch area of low pressure over the Gulf of Saint
Lawrence will exit farther eastward today. In its wake, a large 30.3
inch area of high pressure will build across the Ohio Valley and
lower Great Lakes region through Sunday, before sliding east and off
the mid-Atlantic coastline Monday. A cold front will slide east
across the lake later Monday and Monday night, with another 30.3
inch high over the Mississippi Valley then sliding eastward across
the Ohio Valley and mid-Atlantic states Tuesday and Wednesday.

LOZ062-012000-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1052 AM EDT Sat Nov 1 2025

.This Afternoon...
Weather.............Partly sunny.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.

.TONIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet in the evening.

.SUNDAY...
Weather.............Mostly sunny.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........2 feet or less.

.SUNDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........2 to 4 feet building to 3 to 5 feet after
                              midnight.
Ocnl waves..........Around 6 feet after midnight.

.FORECAST DAYS 3 THROUGH 5......
.MONDAY...Windy. Chance of showers in the morning, then showers
in the afternoon and evening. Southwest winds to 30 knots. Waves
8 to 12 feet.
.TUESDAY...Breezy. West winds 20 to 25 knots. Waves 6 to 9 feet.
.WEDNESDAY...Chance of showers, then showers likely. Southwest
winds 15 to 20 knots. Waves 4 to 6 feet.

$$

LOZ063>065-012000-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
Lake Ontario open waters from Sodus Bay to Mexico Bay-
Lake Ontario open waters from Mexico Bay to the Saint Lawrence
River-
1052 AM EDT Sat Nov 1 2025

.This Afternoon...
Weather.............Partly sunny.
Sfc winds...........Northwest 20 to 25 knots.
100-ft winds........Northwest to 30 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 10 feet.

.TONIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northwest 15 to 20 knots decreasing to 5 to 10
                              knots after midnight.
100-ft winds........Northwest 20 to 25 knots decreasing to 10 to 15
                              knots after midnight.
Sig waves...........5 to 7 feet subsiding to 2 to 4 feet after
                              midnight.
Ocnl waves..........Around 8 feet subsiding to around 5 feet after
                              midnight.

.SUNDAY...
Weather.............Mostly sunny.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........1 to 3 feet.

.SUNDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........Southwest 5 to 10 knots increasing to south 15
                              to 20 knots after midnight.
100-ft winds........Southwest 10 to 15 knots increasing to south 20
                              to 25 knots after midnight.
Sig waves...........1 to 3 feet building to 3 to 5 feet after
                              midnight.
Ocnl waves..........Around 6 feet after midnight.

.FORECAST DAYS 3 THROUGH 5......
.MONDAY...Windy. Chance of showers in the morning, then showers
in the afternoon and evening. chance of showers after midnight.
Southwest gales to 35 knots. Waves 8 to 12 feet.
.TUESDAY...Windy. Chance of showers in the morning. West winds to
30 knots. Waves 8 to 12 feet.
.WEDNESDAY...Chance of showers, then showers likely. West winds
15 to 20 knots. Waves 5 to 7 feet.

$$

LOZ061-012000-
MAFOR 0115/
ONTARIO WEST 1/2 12720 12710 14700. Waves 3 to 5 feet subsiding
to 2 to 4 feet this afternoon. Waves 2 to 4 feet subsiding to 1
foot or less tonight. Waves 1 foot or less Sunday morning.

ONTARIO EAST 1/2 13720 12710 13700. Waves 4 to 7 feet subsiding
to 3 to 6 feet this afternoon. Waves 3 to 5 feet subsiding to 1
to 3 feet tonight. Waves 1 foot or less Sunday morning.

$$