Great Lakes Forecast
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FZUS61 KBUF 200748
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
348 AM EDT Sat Apr 20 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 high will move from the Canadian Rockies
to the northern plains today through tonight. The large high will
continue to push south to the Lower Mississippi valley by late
Sunday. The high will be centered over the Ohio valley on Monday.
This high will slip to the east Tuesday, while a 29.6 inch surface
low deepens across the western Great Lakes, with a warm front
extending towards the Lake Tuesday night. The low will likely move
through the region Wednesday.

LOZ062-201530-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
348 AM EDT Sat Apr 20 2024

.TODAY...Southwest winds 10 to 15 knots becoming west and
increasing to 15 to 25 knots. Waves 2 to 4 feet building to 3 to
6 feet.
.TONIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.SUNDAY...West winds 10 to 15 knots becoming southwest 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet.
.SUNDAY NIGHT...Southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. Waves 2 to 4 feet.
.MONDAY...Northwest winds 5 to 15 knots becoming south. Waves
1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots becoming southwest. A
chance of showers during the day, then showers Tuesday night.
Waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots. Rain showers during
the day. Waves 3 to 5 feet.

$$

LOZ063>065-201530-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
348 AM EDT Sat Apr 20 2024

.TODAY...Southwest winds 10 to 15 knots becoming west and
increasing to 15 to 25 knots. Waves 1 to 2 feet building to 5 to
8 feet. Waves occasionally around 10 feet.
.TONIGHT...West winds 15 to 25 knots. Waves 5 to 8 feet subsiding
to 2 to 4 feet. Waves occasionally around 10 feet.
.SUNDAY...West winds 15 to 20 knots. Waves 2 to 4 feet building
to 3 to 5 feet.
.SUNDAY NIGHT...Southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. Waves 3 to 6 feet.
.MONDAY...Northwest winds 10 to 15 knots becoming south 15 to
20 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots becoming southwest. A
chance of rain showers during the day, then rain showers Tuesday
night. Waves 2 to 4 feet.
.WEDNESDAY...Southwest winds 15 to 20 knots becoming northwest.
Rain showers during the day, then a chance of rain showers
Wednesday night. Waves 3 to 6 feet building to 4 to 7 feet, then
subsiding to 3 to 6 feet. Waves occasionally around 9 feet.

$$

LOZ061-201530-
MAFOR 2009/
ONTARIO WEST 1/2 11510 11620 12630 12620 12610. Waves 1 to 3 feet
building to 4 to 7 feet, and occasionally around 9 feet today.
Waves 3 to 6 feet subsiding to 1 to 3 feet tonight.

ONTARIO EAST 1/2 11500 11520 13630 11620 12610. Waves 1 to 3 feet
building to 5 to 8 feet, and occasionally around 10 feet today.
Waves 5 to 8 feet subsiding to 2 to 4 feet, and occasionally
around 10 feet tonight.

$$


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