Great Lakes Forecast
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FZUS61 KBUF 212031
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
431 PM EDT Thu Mar 21 2024

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 30.5 inch surface high over the upper Midwest will
expand across the lake tonight through Friday. A 30.1 inch low
will track across the Lake on Saturday as a stronger, 29.5 inch
surface low tracks along the coast. A 30.4 inch surface high
pressure will build towards the lake Sunday and then track
northeast to the Canadian Maritimes through Tuesday.

LOZ062-220330-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
431 PM EDT Thu Mar 21 2024

.TONIGHT...Northwest winds 15 to 25 knots diminishing to 5 to
10 knots after midnight. Waves 4 to 7 feet subsiding to 1 to
3 feet. Waves occasionally around 9 feet.
.FRIDAY...Northeast winds 10 knots or less becoming east and
increasing to 15 to 20 knots in the afternoon. A chance of snow
showers late in the morning. Snow in the afternoon. Waves 2 feet
or less building to 2 to 3 feet.
.FRIDAY NIGHT...East winds 15 to 25 knots becoming northeast.
Snow and rain. Waves 3 to 5 feet building to 4 to 7 feet. Waves
occasionally around 9 feet.
.SATURDAY...Northeast winds 15 to 20 knots becoming northwest
10 to 15 knots. Snow likely in the morning. Waves 3 to 5 feet
subsiding to 1 to 2 feet.
.SATURDAY NIGHT...Northwest winds 15 to 20 knots becoming north.
Waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet.
.SUNDAY...Northeast winds 15 to 20 knots becoming east. Waves
2 to 4 feet.
.MONDAY...East winds 15 to 20 knots. Waves 3 to 6 feet.
.TUESDAY...East winds 15 to 20 knots becoming south 10 to
15 knots. A chance of rain showers during the day, then rain
showers likely Tuesday night. Waves 3 to 5 feet subsiding to 2 to
4 feet.

$$

LOZ063>065-220330-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
431 PM EDT Thu Mar 21 2024

.TONIGHT...West winds to 30 knots becoming northwest and
diminishing to 10 to 15 knots after midnight. Waves 6 to 10 feet
subsiding to 3 to 5 feet. Waves occasionally around 13 feet.
.FRIDAY...North winds 5 to 15 knots becoming east 15 to 20 knots.
A chance of snow showers early in the afternoon. Snow late. Waves
1 to 3 feet.
.FRIDAY NIGHT...East winds 15 to 20 knots becoming northeast.
Snow and rain. Waves 2 to 4 feet building to 3 to 5 feet.
.SATURDAY...Northeast winds 15 to 20 knots becoming north. Snow
and rain in the morning, then a chance of rain and snow showers
in the afternoon. Waves 3 to 5 feet.
.SATURDAY NIGHT...North winds 15 to 20 knots. Waves 2 to 4 feet.
.SUNDAY...North winds 15 to 25 knots becoming east 15 to
20 knots. Waves 3 to 6 feet subsiding to 2 to 4 feet.
.MONDAY...East winds 15 to 20 knots becoming southeast. Waves
3 to 5 feet.
.TUESDAY...Southeast winds 15 to 20 knots. Rain showers likely
Tuesday night. Waves 3 to 5 feet subsiding to 2 to 4 feet.

$$

LOZ061-220330-
MAFOR 2121/
ONTARIO WEST 1/2 12730 11720 11710 11800 11200 11310 11217. A
chance of snow showers Friday morning. Waves 5 to 8 feet
subsiding to 2 to 4 feet, and occasionally around 10 feet
tonight. Waves 1 to 3 feet Friday.

ONTARIO EAST 1/2 11630 11730 11720 11710 11800 11100 11200 11217.
Waves 6 to 10 feet subsiding to 3 to 5 feet, and occasionally
around 13 feet tonight. Waves 1 to 3 feet Friday.

$$


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