Great Lakes Forecast
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418
FZUS61 KBUF 301951
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
351 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 will gradually build 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.

LOZ062-010315-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
351 PM EDT Sun Jun 30 2024

.TONIGHT...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots. Waves 3 to 6 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...Southwest winds 10 knots or less becoming east 10 to
15 knots. Waves 2 feet or less.
.TUESDAY NIGHT...East winds 10 to 15 knots becoming south. Waves
1 to 2 feet.
.WEDNESDAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots. Showers likely with a chance of thunderstorms. Waves
1 to 3 feet building to 2 to 4 feet.
.THURSDAY...West winds 10 knots or less becoming north. Waves
2 feet or less.
.FRIDAY...East winds 10 knots or less becoming southwest. A
chance of showers. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-010315-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
351 PM EDT Sun Jun 30 2024

.TONIGHT...Northwest winds 15 to 25 knots becoming north and
diminishing to 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
1 foot or less.
.TUESDAY...South winds 10 knots or less becoming east. Waves
1 foot or less.
.TUESDAY NIGHT...East winds 10 to 15 knots becoming south 15 to
20 knots. Waves 1 to 3 feet.
.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 2 to 4 feet subsiding to 1 to 3 feet.
.THURSDAY...West winds 10 knots or less becoming southwest. Waves
1 to 3 feet subsiding to 1 foot or less.
.FRIDAY...Southeast winds 10 knots or less becoming south. A
chance of showers Friday night. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-010315-
MAFOR 3021/
ONTARIO WEST 1/2 11730 12720 12710 11810 11700 11600. Waves 3 to
6 feet subsiding to 2 to 3 feet tonight. Waves 1 to 3 feet
subsiding to 1 foot or less Monday.

ONTARIO EAST 1/2 11630 11720 11820 13810 11700 11600. Waves 4 to
7 feet subsiding to 2 to 4 feet, and occasionally around 9 feet
tonight. Waves 1 to 3 feet Monday.

$$