Great Lakes Forecast
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FZUS61 KBUF 131435
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1035 AM EDT Sat Apr 13 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 29.1 inch east of James Bay will pull further north
across northern Quebec while slowly weakening today. Meanwhile, a
30.0 inch surface ridge will move from the upper Great Lakes to
the central then lower Great Lakes by this evening. The area of
high pressure will cross the Lake Saturday night. A 29.6 inch low
will cross the Lake on Sunday. An expansive 30.0 inch high
centered over Manitoba Sunday evening will build southeast across
the Great Lakes region late Sunday night through Tuesday. A large
storm system will move from the northern plains to the Upper Great
Lakes Tuesday night and Wednesday.

LOZ062-132100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1035 AM EDT Sat Apr 13 2024

...GALE WARNING IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.REST OF TODAY...West gales to 35 knots. A chance of showers late
this morning. Waves 10 to 15 feet subsiding to 8 to 11 feet.
Waves occasionally around 19 feet.
.TONIGHT...West winds 15 to 25 knots becoming southwest and
diminishing to 10 to 15 knots. A chance of showers after
midnight. Showers likely late. Waves 6 to 9 feet subsiding to
2 to 4 feet. Waves occasionally around 11 feet.
.SUNDAY...South winds 10 to 15 knots becoming west. Showers
likely. Waves 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds around 10 knots. A chance of
showers in the evening. Waves 1 to 3 feet.
.MONDAY...West winds 5 to 15 knots. Waves 1 to 3 feet.
.TUESDAY...East winds 5 to 15 knots. A chance of showers Tuesday
night. Waves 1 to 3 feet.
.WEDNESDAY...East winds 15 to 20 knots becoming southwest 10 to
15 knots. Showers. Waves 3 to 5 feet subsiding to 2 to 4 feet.

$$

LOZ063>065-132100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1035 AM EDT Sat Apr 13 2024

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...West gales to 40 knots diminishing to 35 knots.
Rain showers likely late this morning, then a chance of rain
showers this afternoon. Waves 15 to 20 feet subsiding to 13 to
17 feet. Waves occasionally around 26 feet.
.TONIGHT...West gales to 35 knots diminishing to 15 to 25 knots.
A chance of showers late. Waves 11 to 15 feet subsiding to 4 to
7 feet. Waves occasionally around 19 feet.
.SUNDAY...Southwest winds 10 to 15 knots. Showers. Waves 3 to
5 feet subsiding to 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots becoming west.
Showers likely in the evening. Waves 1 to 2 feet.
.MONDAY...West winds 10 to 15 knots. Waves 1 to 3 feet building
to 2 to 4 feet, then subsiding to 1 to 3 feet.
.TUESDAY...East winds 5 to 15 knots. Waves 1 to 3 feet.
.WEDNESDAY...East winds 15 to 20 knots becoming south. Showers
likely during the day, then showers Wednesday night. Waves 2 to
4 feet subsiding to 1 to 3 feet.

$$

LOZ061-132100-
MAFOR 1315/
ONTARIO WEST 1/2...GALE WARNING IN EFFECT...12650 11640 11630
11620 11610 11516 11416. Waves 12 to 17 feet subsiding to 10 to
13 feet, and occasionally around 22 feet this afternoon. Waves 7
to 10 feet subsiding to 2 to 4 feet, and occasionally around 13
feet tonight. Waves 1 to 3 feet Sunday morning.

ONTARIO EAST 1/2...GALE WARNING IN EFFECT...13650 12640 11620
11510 11516. Waves 15 to 19 feet subsiding to 13 to 17 feet, and
occasionally around 24 feet this afternoon. Waves 11 to 15 feet
subsiding to 4 to 7 feet, and occasionally around 19 feet
tonight. Waves 3 to 5 feet subsiding to 2 to 4 feet Sunday
morning.

$$

JJR


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