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FZUS61 KBUF 060741
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
341 AM EDT Sun Apr 6 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 in eastern Quebec this morning will
continue to pull a cold front across the area. A 30.1 inch high
over the upper Great Lakes will build across the lower Great Lakes
today and tonight, before a 29.5 inch low slowly moves eastward,
just north of the Lake through Monday and Monday night. A 30.2
inch high will build across the Lake Tuesday through Wednesday.
Exiting high pressure will give way to a 30.0 inch surface low
over the Ohio Valley Thursday.

LOZ062-061515-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
341 AM EDT Sun Apr 6 2025

.TODAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.TONIGHT...Northwest winds 5 to 15 knots becoming southeast.
Waves 1 to 3 feet subsiding to 1 foot or less.
.MONDAY...South winds 5 to 15 knots becoming southwest 15 to
20 knots. A chance of rain showers in the afternoon. Waves 1 to
3 feet.
.MONDAY NIGHT...Northwest winds 15 to 25 knots increasing to
30 knots. A chance of snow and rain showers in the evening, then
a chance of snow showers overnight. Waves 3 to 5 feet building to
6 to 10 feet. Waves occasionally around 13 feet.
.TUESDAY...Northwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. A chance of snow showers during
the day. Waves 6 to 10 feet subsiding to 3 to 6 feet. Waves
occasionally around 13 feet.
.WEDNESDAY...West winds 10 to 15 knots becoming southeast. Waves
2 to 4 feet subsiding to 1 to 2 feet.
.THURSDAY...Southeast winds 10 to 15 knots becoming northeast.
Rain likely during the day, then a chance of rain Thursday night.
Waves 1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to
3 feet.

$$

LOZ063>065-061515-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
341 AM EDT Sun Apr 6 2025

.TODAY...West winds 15 to 20 knots. Waves 3 to 6 feet.
.TONIGHT...West winds 15 to 20 knots becoming north 5 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.MONDAY...South winds 5 to 10 knots becoming east. Waves 1 foot
or less.
.MONDAY NIGHT...Northwest winds 15 to 25 knots becoming west to
30 knots. Snow and rain showers likely in the evening, then a
chance of snow showers overnight. Waves 1 to 3 feet building to
9 to 12 feet. Waves occasionally around 15 feet.
.TUESDAY...Northwest winds to 30 knots diminishing to 15 to
20 knots. Snow showers likely during the day, then scattered
flurries Tuesday night. Waves 8 to 12 feet subsiding to 5 to
8 feet. Waves occasionally around 15 feet.
.WEDNESDAY...West winds 10 to 15 knots becoming south. Waves 3 to
5 feet subsiding to 1 to 3 feet.
.THURSDAY...Southeast winds 10 to 15 knots increasing to 15 to
20 knots. Rain likely during the day, then a chance of rain
Thursday night. Waves 1 to 3 feet.

$$

LOZ061-061515-
MAFOR 0609/
ONTARIO WEST 1/2 13720 11610 12710 12800. Waves 2 to 3 feet
building to 3 to 5 feet, then subsiding to 2 to 4 feet today.
Waves 1 to 3 feet subsiding to 1 foot or less tonight.

ONTARIO EAST 1/2 14620 11620 11710 11700 11800. Waves 2 to 4 feet
building to 3 to 6 feet today. Waves 2 to 4 feet subsiding to 1
to 3 feet tonight.

$$

EAJ