Expires:202507200300;;728502
FZUS61 KBUF 192003
GLFLO 

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Sat Jul 19 2025

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 29.7 inch low is forecast to move from the central 
Great Lakes tonight to northern New England by late Sunday, with its 
trailing cold front crossing the lake Sunday morning. A 30.1 inch 
high over James Bay Sunday night will then build southward along the 
Ontario/Quebec border through Monday night, before settling across 
the Lower Great Lakes Tuesday, then off the southern New England 
coast Wednesday. A 29.6 inch low may move south of James Bay 
Thursday.


LOZ062-200300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Sat Jul 19 2025

.TONIGHT...Southeast winds 5 to 15 knots becoming west. A chance
of showers and thunderstorms late this evening. Showers with a
chance of thunderstorms after midnight. Waves 2 feet or less. 
.SUNDAY...West winds 5 to 15 knots becoming northwest. A chance
of showers early. Waves 1 to 2 feet. 
.SUNDAY NIGHT...Northwest winds 15 to 20 knots becoming north.
Waves 1 to 3 feet building to 2 to 4 feet. 
.MONDAY...North winds 5 to 15 knots becoming northwest less than
10 knots. Waves 1 to 3 feet subsiding to 1 foot or less. 
.MONDAY NIGHT...Northwest winds 5 to 10 knots becoming northeast.
Waves 1 foot or less. 
.TUESDAY...East winds 5 to 10 knots becoming southeast. Waves
1 foot or less. 
.WEDNESDAY...Southeast winds 5 to 15 knots becoming southwest. A
chance of showers Wednesday night. Waves 2 feet or less. 
.THURSDAY...Southwest winds 10 to 15 knots becoming west. A
chance of showers. Waves 1 to 3 feet. 

Winds and waves higher in and near thunderstorms.

$$