FZUS61 KBUF 150802
GLFLO 

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM EDT Thu Oct 15 2026

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 30.4 inch high will drift east across Quebec and New 
England through tonight. A 29.5 inch low will then move from 
southern lower Michigan tonight to just north of the lake Friday 
morning before reaching the Saint Lawrence Valley by late Friday 
afternoon. This low will deepen to 29.1 inches as it moves from the 
Saint Lawrence Valley Friday night to the Canadian Maritimes 
Saturday. A strong and broad 30.6 inch high is then forecast to 
build from the Ohio Valley Saturday night to the Mid Atlantic and 
southern New England by Sunday night before drifting south of the 
Canadian Maritimes Monday.

LOZ062-151500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Thu Oct 15 2026

.TODAY...Northeast winds 10 to 15 knots becoming east 15 to
20 knots. Waves 2 to 4 feet. 
.TONIGHT...East winds 15 to 20 knots becoming southeast 10 to
15 knots. A chance of showers late in the evening. Periods of
rain after midnight. Waves 3 to 5 feet subsiding to 2 to 4 feet. 
.FRIDAY...Southwest winds 15 to 25 knots becoming northwest to
30 knots. Periods of rain. Waves 2 to 3 feet building to 5 to
8 feet. Waves occasionally around 10 feet. 
.FRIDAY NIGHT...Northwest winds to 30 knots becoming north. Waves
5 to 8 feet. Waves occasionally around 10 feet. 
.SATURDAY...North winds 15 to 25 knots becoming west 15 to
20 knots. Waves 4 to 7 feet subsiding to 3 to 5 feet. Waves
occasionally around 9 feet. 
.SUNDAY...Southwest winds 15 to 20 knots. Waves 3 to 5 feet. 
.MONDAY...Southwest winds 15 to 20 knots becoming west 5 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. 

$$

LOZ063>065-151500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Thu Oct 15 2026

.TODAY...Northeast winds 10 to 15 knots becoming east. Waves 1 to
3 feet. 
.TONIGHT...East winds 10 to 15 knots becoming southeast and
increasing to 30 knots after midnight. Periods of rain after
midnight. Waves 1 to 3 feet building to 3 to 6 feet. 
.FRIDAY...South winds to 30 knots becoming west. Periods of rain.
Waves 5 to 8 feet building to 6 to 9 feet. Waves occasionally
around 11 feet. 
.FRIDAY NIGHT...Northwest winds to 30 knots becoming north. A
chance of showers in the evening. Waves 5 to 9 feet. Waves
occasionally around 11 feet. 
.SATURDAY...North winds to 30 knots becoming west and diminishing
to 15 to 20 knots. Waves 5 to 8 feet subsiding to 3 to 5 feet.
Waves occasionally around 10 feet. 
.SUNDAY...Southwest winds 15 to 20 knots. Waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.MONDAY...Southwest winds 15 to 20 knots diminishing to 5 to
10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. 

$$

LOZ061-151500-
MAFOR 1509/
ONTARIO WEST 1/2 12110 11210 13220 11226 11326. Waves 2 to 4 feet
today. Waves 3 to 5 feet subsiding to 2 to 4 feet tonight. 

ONTARIO EAST 1/2 14110 12210 11326 11336. Waves 1 to 3 feet
today. Waves 1 to 3 feet building to 3 to 6 feet tonight. 

$$