Great Lakes Forecast
Issued by NWS

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000
FZUS61 KBUF 210806
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
406 AM EDT Sun Apr 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 high over the central this morning will
continue to push south to the lower Mississippi Valley by later
today. The high will weaken some to 30.2 as it slides east into
the Ohio Valley by late Monday and ridges over the Lake. This high
will slip to the east Tuesday, while a 29.5 inch surface low
deepens across the western Great Lakes, with a warm front
extending towards the Lake Tuesday night. The 29.7 inch low will
cross the Lake late Tuesday night and Wednesday. A 30.3 inch high
will then build across the Lake Wednesday night and Thursday.

LOZ062-211515-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
406 AM EDT Sun Apr 21 2024

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

$$

LOZ063>065-211515-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
406 AM EDT Sun Apr 21 2024

.TODAY...West winds 10 to 15 knots increasing to 15 to 25 knots.
Waves 2 to 4 feet building to 3 to 6 feet.
.TONIGHT...West winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. Waves 3 to 6 feet subsiding to
2 to 4 feet.
.MONDAY...North winds 5 to 15 knots becoming southwest. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.MONDAY NIGHT...South winds 5 to 15 knots. Waves 2 feet or less.
.TUESDAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots. Rain 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 during the day.
Waves 3 to 6 feet.
.THURSDAY...Northwest winds 15 to 20 knots diminishing to 5 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.

$$

LOZ061-211515-
MAFOR 2109/
ONTARIO WEST 1/2 12610 14620 11610 11710. Waves 1 to 3 feet
building to 3 to 5 feet today. Waves 3 to 5 feet subsiding to 2
to 4 feet tonight.

ONTARIO EAST 1/2 11610 11620 13630 12620 11710. Waves 2 to 4 feet
building to 3 to 6 feet today. Waves 3 to 6 feet subsiding to 2
to 4 feet tonight.

$$


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