953
FZUS61 KBUF 300821
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
421 AM 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 29.6 inch low over the Saint Lawrence valley will
push a cold across the across the lake this morning. 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.

LOZ062-301515-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
421 AM EDT Sun Jun 30 2024

.TODAY...West winds 10 to 15 knots becoming northwest 15 to
25 knots. Waves 1 to 3 feet building to 3 to 5 feet.
.TONIGHT...Northwest winds 15 to 20 knots becoming north 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 10 to 15 knots. Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots. Showers likely with a
chance of thunderstorms. Waves 1 to 3 feet.
.THURSDAY...West winds 10 knots or less. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-301515-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
421 AM EDT Sun Jun 30 2024

.TODAY...Southwest winds 15 to 25 knots becoming west. A chance
of showers and thunderstorms this morning. Waves 1 to 3 feet
building to 3 to 6 feet.
.TONIGHT...West winds 15 to 25 knots becoming north. A chance of
showers through the early overnight. Waves 4 to 7 feet subsiding
to 2 to 4 feet. Waves occasionally around 9 feet.
.MONDAY...North winds 10 to 15 knots becoming west. Waves 1 to
3 feet.
.MONDAY NIGHT...West winds 5 to 10 knots becoming southwest.
Waves 2 feet or less.
.TUESDAY...South winds 10 knots or less becoming southeast 10 to
15 knots. Waves 2 feet or less.
.WEDNESDAY...South winds 15 to 20 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 to 15 knots. A chance of showers. Waves
1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-301515-
MAFOR 3009/
ONTARIO WEST 1/2 11610 12620 11630 11730 12720 11810. Waves 1 to
3 feet building to 3 to 6 feet today. Waves 3 to 6 feet subsiding
to 2 to 4 feet tonight.

ONTARIO EAST 1/2 11510 12620 12630 11720 11820 11810. A chance of
thunderstorms early, then a chance of showers and thunderstorms
this morning. A chance of showers this evening. Waves 1 to 3 feet
building to 3 to 6 feet today. Waves 4 to 7 feet subsiding to 2
to 4 feet, and occasionally around 9 feet tonight.

$$

JJR/RSH