699
FZUS61 KBUF 050202
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 PM EDT Fri Sep 4 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 high pressure ridge averaging 30.1 inches builds gradually from
northern Ontario through Monday. During Monday night, a cold front
will sweep southward across Lake Ontario. Behind the front, another
ridge averaging 30.1 inches builds from near James Bay through
Tuesday. On Wednesday, the ridge should exit southeastward and allow
a warm front to sweep northeastward across Lake Ontario.

LOZ062-050900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 PM EDT Fri Sep 4 2026

.OVERNIGHT...North winds 5 to 10 knots becoming northeast.
Waves 1 foot or less.
.SATURDAY...Northeast winds around 10 knots becoming light and
variable. Waves 1 foot or less.
.SATURDAY NIGHT...Light and variable winds becoming northeast
around 10 knots. Waves 2 feet or less.
.SUNDAY...Northeast winds 5 to 15 knots becoming east. Waves 1 to
2 feet.
.SUNDAY NIGHT...Southeast winds less than 10 knots. Waves 1 foot
or less.
.MONDAY...Light and variable winds. Waves 1 foot or less.
.TUESDAY...East winds 10 knots or less becoming southeast. A
chance of showers Tuesday night. Waves 1 foot or less.
.WEDNESDAY...South winds 15 to 25 knots becoming west. Showers
likely during the day, then a chance of showers Wednesday night.
Waves 1 to 3 feet building to 3 to 6 feet.

$$

LOZ063>065-050900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 PM EDT Fri Sep 4 2026

.OVERNIGHT...North winds 5 to 10 knots. Waves 1 foot or
less.
.SATURDAY...North winds 5 to 10 knots. Waves 1 foot or less.
.SATURDAY NIGHT...North winds 10 to 15 knots becoming northeast.
Waves 1 to 3 feet.
.SUNDAY...Northeast winds 5 to 15 knots. Waves 1 to 3 feet.
.SUNDAY NIGHT...Northeast winds 10 knots or less becoming
northwest. Waves 2 feet or less.
.MONDAY...Northwest winds 10 knots or less becoming west. Waves
1 foot or less.
.TUESDAY...North winds 5 to 15 knots becoming southeast. Waves
2 feet or less.
.WEDNESDAY...South winds 15 to 25 knots becoming west. Showers
likely. Waves 1 to 3 feet building to 3 to 6 feet.

$$

LOZ061-050900-
MAFOR 0503/
ONTARIO WEST 1/2 11800 14100 11100 11800 11100. Waves 1 foot or
less.

ONTARIO EAST 1/2 15800 11800 11810. Waves 2 feet or less.

$$