821
FZUS61 KBUF 130202
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 PM EDT Fri Sep 12 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 30.3 inch high across Quebec and the Canadian
Maritimes tonight, will move off the east coast Saturday. A weak
trough of low pressure averaging 29.9 inches will then move into the
lower Great Lakes Saturday night through Sunday. A 30.3 inch high
will slowly shift across Quebec and to New England Monday through
Tuesday. The high will drift off the east coast Wednesday.

LOZ062-130900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 PM EDT Fri Sep 12 2025

.OVERNIGHT...Southeast winds less than 10 knots. Waves
1 foot or less.
.SATURDAY...Light and variable winds. Waves 1 foot or less.
.SATURDAY NIGHT...Southwest winds 10 knots or less becoming
northwest. Waves 1 foot or less.
.SUNDAY...Northwest winds 5 to 10 knots becoming light and
variable. Waves 1 foot or less.
.SUNDAY NIGHT...Northeast winds 10 knots or less becoming east.
Waves 1 foot or less.
.MONDAY...East winds 5 to 10 knots. Waves 2 feet or less.
.TUESDAY...East winds 10 knots or less. Waves 1 foot or less.
.WEDNESDAY...East winds 10 knots or less becoming southeast.
Waves 1 foot or less.

$$

LOZ063>065-130900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 PM EDT Fri Sep 12 2025

.OVERNIGHT...Southeast winds less than 10 knots becoming
south. Waves 1 foot or less.
.SATURDAY...South winds less than 10 knots becoming west. Waves
1 foot or less.
.SATURDAY NIGHT...Southwest winds less than 10 knots becoming
northwest. Waves 1 foot or less.
.SUNDAY...Northwest winds 10 knots or less. Waves 1 foot or less.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots becoming northeast.
Waves 1 foot or less.
.MONDAY...Northeast winds 10 knots or less becoming east. Waves
1 foot or less.
.TUESDAY...East winds 10 knots or less. Waves 1 foot or less.
.WEDNESDAY...Southeast winds 10 knots or less becoming south.
Waves 1 foot or less.

$$

LOZ061-130900-
MAFOR 1303/
ONTARIO WEST 1/2 11300 11400 12500 12600 11500 11600. Waves 1
foot or less.

ONTARIO EAST 1/2 14400 11500 11600 12500. Waves 1 foot or less.

$$