FZUS61 KBUF 270202

GLFLO 



Open Lake Forecast for Lake Ontario

National Weather Service Buffalo NY

1002 PM EDT Sun Oct 26 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...An expansive 30.5 inch high will slowly build east into 

Quebec through tonight, where it will then remain anchored through 

Wednesday night before slowly weakening. A surface low will then 

approach the lake from the south later in the week while 

strengthening to around 29.4 inches.



LOZ062-270900-

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

1002 PM EDT Sun Oct 26 2025



.OVERNIGHT...East winds 5 to 15 knots becoming southeast.

Waves 2 feet or less. 

.MONDAY...East winds 5 to 15 knots. Waves 1 to 3 feet. 

.MONDAY NIGHT...East winds 15 to 20 knots diminishing to 10 to

15 knots. Waves 2 to 4 feet. 

.TUESDAY...East winds 15 to 25 knots. Waves 2 to 4 feet building

to 3 to 6 feet. 

.TUESDAY NIGHT...East winds 15 to 20 knots. Waves 3 to 6 feet. 

.WEDNESDAY...East winds 15 to 20 knots. Waves 3 to 5 feet. 

.THURSDAY...East winds 15 to 25 knots increasing to 30 knots. A

chance of showers during the day, then showers likely Thursday

night. Waves 3 to 5 feet building to 6 to 10 feet. Waves

occasionally around 13 feet. 

.FRIDAY...East winds to 30 knots becoming west. Showers. Waves

6 to 10 feet subsiding to 5 to 8 feet. Waves occasionally around

13 feet. 



$$



LOZ063>065-270900-

Lake Ontario open waters from Hamlin Beach to the Saint Lawrence

River-

1002 PM EDT Sun Oct 26 2025



.OVERNIGHT...Northeast winds 5 to 15 knots. Waves 2 feet or

less. 

.MONDAY...Northeast winds 5 to 10 knots. Waves 2 feet or less. 

.MONDAY NIGHT...Northeast winds 10 to 15 knots becoming east.

Waves 1 to 3 feet. 

.TUESDAY...East winds 10 to 15 knots becoming northeast 15 to

20 knots. Waves 2 to 4 feet building to 3 to 5 feet. 

.TUESDAY NIGHT...Northeast winds 15 to 20 knots becoming east

10 to 15 knots. Waves 3 to 5 feet subsiding to 2 to 4 feet. 

.WEDNESDAY...Northeast winds 10 to 15 knots becoming east. Waves

2 to 4 feet subsiding to 1 to 3 feet. 

.THURSDAY...East winds 15 to 25 knots. A chance of showers during

the day, then showers likely Thursday night. Waves 2 to 4 feet

building to 5 to 8 feet. Waves occasionally around 10 feet. 

.FRIDAY...East winds to 30 knots becoming west. Showers. Waves

5 to 9 feet. Waves occasionally around 11 feet. 



$$



LOZ061-270900-

MAFOR 2703/

ONTARIO WEST 1/2 11210 11300 11200 11110 14210. Waves 2 feet or

less overnight. Waves 1 to 3 feet Monday. Waves 2 to 4 feet

Monday evening. 



ONTARIO EAST 1/2 11110 14100 11100 11110 11210. Waves 2 feet or

less overnight and Monday. Waves 1 to 3 feet Monday evening. 



$$