903
FZUS61 KBUF 301735
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
135 PM EDT Sun Jun 30 2024

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 over the Upper Mississippi valley
this afternoon will build gradually east across the Great Lakes
region tonight through Monday night. The high will then cross New
England on Tuesday before moving off the East coast Tuesday night
and Wednesday. A cold front extending from a 29.4 inch low near
Hudson Bay will move across the lake Wednesday night.

LOZ062-302130-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
135 PM EDT Sun Jun 30 2024

.THIS AFTERNOON...Northwest winds 15 to 20 knots. Waves 2 to
4 feet building to 3 to 5 feet.
.TONIGHT...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots. Waves 3 to 5 feet subsiding to 2 to 4 feet.
.MONDAY...North winds 5 to 15 knots becoming southwest. Waves
1 to 3 feet subsiding to 1 foot or less.
.MONDAY NIGHT...West winds 10 knots or less becoming southwest.
Waves 1 foot or less.
.TUESDAY...South winds less than 10 knots increasing to 10 to
15 knots. Waves 2 feet or less.
.WEDNESDAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots. Showers likely with a chance of thunderstorms. Waves
1 to 2 feet building to 2 to 4 feet, then subsiding to 1 to
3 feet.
.THURSDAY...West winds 10 knots or less becoming north. Waves
2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-302130-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
135 PM EDT Sun Jun 30 2024

.THIS AFTERNOON...West winds 15 to 25 knots. Waves 3 to 6 feet.
.TONIGHT...Northwest winds 15 to 20 knots becoming north 10 to
15 knots. Waves 4 to 7 feet subsiding to 2 to 4 feet. Waves
occasionally around 9 feet.
.MONDAY...North winds 5 to 15 knots becoming west. Waves 1 to
3 feet.
.MONDAY NIGHT...West winds 10 knots or less becoming south. Waves
2 feet or less.
.TUESDAY...South winds 10 knots or less becoming southeast and
increasing to 15 to 20 knots. Waves 2 feet or less.
.WEDNESDAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots. A chance of showers and thunderstorms during the day,
then showers likely with a chance of thunderstorms Wednesday
night. Waves 1 to 3 feet.
.THURSDAY...West winds 10 knots or less becoming southwest. A
chance of showers during the day. Waves 1 to 3 feet subsiding to
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-302130-
MAFOR 3015/
ONTARIO WEST 1/2 11720 12730 12720 12710 11810. Waves 2 to 4 feet
building to 3 to 6 feet this afternoon. Waves 3 to 6 feet
subsiding to 2 to 4 feet tonight. Waves 2 to 3 feet Monday
morning.

ONTARIO EAST 1/2 13630 11720 11820 13810. Waves 2 to 4 feet
building to 3 to 6 feet this afternoon. Waves 4 to 7 feet
subsiding to 2 to 4 feet, and occasionally around 9 feet tonight.
Waves 1 to 3 feet Monday morning.

$$

AR