Great Lakes Forecast
Issued by NWS

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252
FZUS61 KBUF 022056
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
456 PM EDT Thu May 2 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 30.1 inch high over the lake this evening will slide
east into New England overnight. Meanwhile, a 29.7 inch low will
develop across the northern Plains and strengthen to 29.6 inches
as it moves into northern Ontario Friday. A warm front will extend
southeastward from this low towards the lake tonight, before
crossing the lake on Friday. The same low will continue to slowly
deepen to 29.5 inches as it moves further north Friday night,
settling over southern Hudson Bay Saturday. A slow moving cold
front extending southeastward from the low will cross the lake
Saturday, followed by another cold front Sunday. A 30.2 inch ridge
of high pressure will then build across the lake Monday into
Tuesday.

LOZ062-030315-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
456 PM EDT Thu May 2 2024

.TONIGHT...Southwest winds 10 knots or less becoming east. Waves
2 feet or less.
.FRIDAY...East winds 10 to 15 knots. A chance of showers late.
Waves 2 feet or less building to 3 to 5 feet.
.FRIDAY NIGHT...East winds 5 to 15 knots. Showers likely with a
chance of thunderstorms. Waves 3 to 5 feet subsiding to 2 to 3
feet.
.SATURDAY...East winds 10 to 15 knots. Showers likely with a
chance of thunderstorms. Waves 1 to 3 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots becoming southeast. A
chance of showers. Waves 1 to 3 feet.
.SUNDAY...Southeast winds 5 to 15 knots becoming west. Showers
likely. Waves 1 to 2 feet.
.MONDAY...West winds 5 to 10 knots becoming northeast. Waves
2 feet or less.
.TUESDAY...East winds 5 to 15 knots. A chance of showers during
the day, then showers likely Tuesday night. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-030315-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
456 PM EDT Thu May 2 2024

.TONIGHT...West winds 10 knots or less becoming southeast. Waves
1 to 3 feet subsiding to 1 foot or less.
.FRIDAY...East winds 5 to 15 knots becoming northeast. Waves
1 foot or less building to 1 to 3 feet.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots becoming
southeast. Showers likely with a chance of thunderstorms. Waves
1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to 3
feet.
.SATURDAY...Southeast winds 10 to 15 knots. Showers likely with a
chance of thunderstorms. Waves 1 to 3 feet.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots increasing to
15 to 20 knots. Showers likely with a chance of thunderstorms.
Waves 1 to 3 feet building to 3 to 5 feet.
.SUNDAY...Southeast winds 15 to 20 knots becoming west 10 to
15 knots. Showers likely. Waves 3 to 5 feet subsiding to 1 to 3
feet.
.MONDAY...West winds 5 to 10 knots becoming southwest. Waves
2 feet or less.
.TUESDAY...East winds 5 to 15 knots. A chance of showers during
the day, then showers likely Tuesday night. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-030315-
MAFOR 0221/
ONTARIO WEST 1/2 11500 11400 11300 11200 14210. Waves 2 feet or
less tonight. Waves 1 to 3 feet building to 3 to 5 feet Friday.

ONTARIO EAST 1/2 11600 11500 12300 11200 12210 11110. Waves 1 to
3 feet.

$$