506
FZUS61 KBUF 071401
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1001 AM EDT Sat Jun 7 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 stalled out frontal boundary just to our south will slip further
south and away from our region today, while a weak 30.0 inch high
builds from the Upper Great Lakes to Quebec. The high will then
depart into the Canadian Maritimes Sunday while a 29.6 inch low
pushes across the Ohio Valley. Another broad 29.6 inch low will then
slowly make its way from the Upper Great Lakes to James Bay Monday
and Tuesday, then to Labrador on Wednesday.

LOZ062-072100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1001 AM EDT Sat Jun 7 2025

.REST OF TODAY...North winds less than 10 knots becoming west.
Waves 1 foot or less.
.TONIGHT...West winds 10 knots or less becoming east. Waves
1 foot or less.
.SUNDAY...East winds 5 to 15 knots. Waves 1 to 3 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots becoming southeast. A
chance of showers. Waves 1 to 3 feet.
.MONDAY...South winds 10 to 15 knots. Showers likely with a
chance of thunderstorms. Waves 1 to 2 feet.
.TUESDAY...Southwest winds 10 to 15 knots. A chance of showers.
Waves 1 to 3 feet.
.WEDNESDAY...Southwest winds 15 to 20 knots becoming west 10 to
15 knots. Waves 2 to 4 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-072100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1001 AM EDT Sat Jun 7 2025

.REST OF TODAY...North winds 5 to 10 knots becoming northwest.
Patchy fog late this morning. Waves 1 foot or less.
.TONIGHT...Northwest winds 5 to 10 knots becoming northeast.
Waves 1 foot or less.
.SUNDAY...Northeast winds 5 to 10 knots. Waves 1 foot or less.
.SUNDAY NIGHT...East winds 5 to 15 knots becoming southeast. A
chance of showers. Waves 1 to 3 feet.
.MONDAY...Southeast winds 10 to 15 knots becoming south. Showers
likely during the day, then showers with a chance of
thunderstorms Monday night. Waves 1 to 3 feet.
.TUESDAY...South winds 10 to 15 knots becoming southwest. Showers
likely during the day, then a chance of showers Tuesday night.
Waves 1 to 2 feet.
.WEDNESDAY...Southwest winds 15 to 20 knots becoming west 10 to
15 knots. Waves 1 to 3 feet building to 2 to 4 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-072100-
MAFOR 0715/
ONTARIO WEST 1/2 11700 12600 11700 11800 13200. Waves 1 foot or
less.

ONTARIO EAST 1/2 14700 11800 13100. Waves 1 foot or less.

$$