Experimental Modernized Open Lake Forecast - Lake Ontario

NZUS99 KBUF 030852
GLFLOT

Experimental Tabular Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
452 AM EDT Fri Jul 3 2026

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 30.1 inch high will remain in place today from the
upper Ohio Valley to the Mid Atlantic. A weak cold front will settle
south across the lake this evening, followed by another weak cold
front Saturday evening. A 30.2 inch high will then build from Hudson
Bay Saturday to Quebec and northern New England Sunday night. A weak
29.9 inch low will then develop over the upper Ohio Valley late
Sunday and move to the Mid Atlantic by late Monday. A broad 30.1
inch high is then forecast to build into the Great Lakes Tuesday
through Wednesday.

LOZ062-031400-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
452 AM EDT Fri Jul 3 2026

.Today...
Weather.............Mostly sunny, then showers and thunderstorms
                              likely in the afternoon.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.

.TONIGHT...
Weather.............Mostly cloudy with chance of showers and
                              thunderstorms, then mostly cloudy with chance
                              of showers after midnight.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet.

.SATURDAY...
Weather.............Partly sunny with chance of showers.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........1 to 3 feet.

.SATURDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Light and variable winds becoming northeast 5
                              to 10 knots after midnight.
100-ft winds........Light and variable winds becoming northeast 10
                              to 15 knots after midnight.
Sig waves...........2 feet or less.


.FORECAST DAYS 3 THROUGH 5......
.SUNDAY...Chance of showers. chance of showers and thunderstorms
after midnight. East winds 10 to 15 knots. Waves 2 to 4 feet.
.MONDAY...Chance of showers in the morning, then showers likely
with a chance of thunderstorms in the afternoon and evening.
chance of showers after midnight. East winds 10 to 15 knots.
Waves 2 to 4 feet.
.TUESDAY...Chance of showers in the morning. East winds 5 to
10 knots. Waves 1 to 3 feet.

$$

LOZ063>065-031400-
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-
452 AM EDT Fri Jul 3 2026

.Today...
Weather.............Mostly sunny, then chance of showers and
                              thunderstorms in the afternoon.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.

.TONIGHT...
Weather.............Mostly cloudy with chance of showers and
                              thunderstorms, then mostly cloudy after
                              midnight.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.

.SATURDAY...
Weather.............Partly sunny.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........2 to 4 feet.

.SATURDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Light and variable winds.
100-ft winds........Light and variable winds.
Sig waves...........2 feet or less.


.FORECAST DAYS 3 THROUGH 5......
.SUNDAY...Chance of showers after midnight. Northeast winds 10 to
15 knots. Waves 2 to 4 feet.
.MONDAY...Chance of showers in the morning. showers likely in the
afternoon, then chance of showers. East winds 10 to 15 knots.
Waves 2 to 4 feet.
.TUESDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.

$$

LOZ061-031400-
MAFOR 0309/
ONTARIO WEST 1/2 13600 12619 13600. Waves 2 feet or less.

ONTARIO EAST 1/2 13600 12610 13600. A chance of showers and
thunderstorms this afternoon and evening. Waves 1 to 2 feet.

$$

Occasional waves will only be displayed when values meet or exceed 5 feet / 2 meters.

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