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FZUS61 KBUF 170839

GLFLO 



Open Lake Forecast for Lake Ontario

National Weather Service Buffalo NY

439 AM EDT Wed Apr 17 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 29.3 inch low will move from the upper Mississippi 

Valley to the Great Lakes today. The weakening storm system will 

pass to the northwest of the lake tonight and Thursday sending a 

cold front across the lake tonight. The next storm system will

average 29.8 inches as it slowly crosses northern Ontario and 

northern Quebec Friday and Saturday sending a secondary cold front

across the Lake Friday night, while expansive high pressure moves

from the Canadian Rockies to the central Plains through Sunday.



LOZ062-171515-

Lake Ontario open waters from the Niagara River to Hamlin Beach-

439 AM EDT Wed Apr 17 2024



.TODAY...East winds to 30 knots. A chance of showers early, then

showers. Showers with a chance of thunderstorms late. Waves 6 to

9 feet. Waves occasionally around 11 feet. 

.TONIGHT...East winds to 30 knots becoming south and diminishing

to 10 to 15 knots after midnight. Showers with a chance of

thunderstorms through the early overnight, then a chance of

showers and thunderstorms late. Waves 6 to 9 feet subsiding to

3 to 5 feet. Waves occasionally around 11 feet. 

.THURSDAY...Southwest winds 5 to 15 knots. A chance of showers in

the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet. 

.THURSDAY NIGHT...Southwest winds 5 to 10 knots becoming

southeast. A chance of showers overnight. Waves 1 to 2 feet. 

.FRIDAY...Southeast winds 10 to 15 knots becoming west 15 to

20 knots. Showers during the day, then a chance of showers Friday

night. Waves 1 to 2 feet building to 2 to 4 feet. 

.SATURDAY...West winds 15 to 20 knots diminishing to 10 to

15 knots. A chance of rain showers. Waves 2 to 4 feet. 

.SUNDAY...West winds 10 to 15 knots becoming southwest. Waves

1 to 3 feet. 



Winds and waves higher in and near thunderstorms.



$$



LOZ063>065-171515-

Lake Ontario open waters from Hamlin Beach to the Saint Lawrence

River-

439 AM EDT Wed Apr 17 2024



.TODAY...East winds 15 to 25 knots. Showers this afternoon. Waves

3 to 6 feet building to 4 to 7 feet, then subsiding to 3 to

6 feet. Waves occasionally around 9 feet. 

.TONIGHT...East winds 15 to 20 knots becoming southeast. Showers

with a chance of thunderstorms. Waves 3 to 6 feet. 

.THURSDAY...Southeast winds 15 to 25 knots becoming south and

diminishing to 10 to 15 knots. Showers likely in the morning,

then a chance of showers in the afternoon. Waves 3 to 6 feet. 

.THURSDAY NIGHT...South winds 10 to 15 knots becoming southeast

15 to 20 knots. A chance of showers in the evening. Waves 2 to

4 feet. 

.FRIDAY...Southeast winds 15 to 25 knots becoming west. Showers.

Waves 3 to 6 feet subsiding to 2 to 3 feet. 

.SATURDAY...West winds 15 to 20 knots. A chance of rain showers.

Waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to

4 feet. 

.SUNDAY...West winds 10 to 15 knots becoming southwest. Waves

2 to 4 feet subsiding to 1 to 3 feet. 



Winds and waves higher in and near thunderstorms.



$$



LOZ061-171515-

MAFOR 1709/

ONTARIO WEST 1/2 12230 13246 11236 11226 11310. A chance of

thunderstorms this evening. Waves 4 to 6 feet building to 6 to 9

feet, and occasionally around 11 feet today. Waves 6 to 9 feet

subsiding to 3 to 5 feet, and occasionally around 11 feet

tonight. 



ONTARIO EAST 1/2 11120 11220 11120 11126 13226 11326. A chance of

thunderstorms tonight. Waves 2 to 4 feet building to 3 to 6 feet,

then subsiding to 2 to 4 feet today. Waves 2 to 4 feet building

to 3 to 5 feet tonight. 



$$