Great Lakes Forecast
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517
FZUS61 KBUF 050821
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
421 AM EDT Fri Jul 5 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 weak 29.7 inch low over lower Michigan this morning
will move across the lower Great Lakes through Saturday before
moving down the Saint Lawrence Valley and dissipating Sunday. A cold
front from this area of low pressure will cross the Lake late Friday
night. A 30.1 inch high will then build into the Ohio Valley and New
England Sunday night through Monday before drifting off the east
coast Tuesday. A 29.7 inch area of low pressure will lift across the
Central Great Lakes Tuesday night, with a warm front extending
towards the Lake. As this low moves across southern Quebec Wednesday
a cold front will cross the Lake early in the day.

LOZ062-051500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
421 AM EDT Fri Jul 5 2024

.TODAY...North winds 10 knots or less becoming east. Waves 1 foot
or less.
.TONIGHT...East winds 10 knots or less becoming south. A chance
of showers and thunderstorms. Waves 1 foot or less.
.SATURDAY...Southeast winds 10 knots or less becoming southwest.
Waves 1 foot or less.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots becoming west.
Waves 1 to 2 feet.
.SUNDAY...West winds 10 knots or less becoming south. Waves
1 foot or less.
.MONDAY...Light and variable winds. Waves 1 foot or less.
.TUESDAY...Southeast winds 10 knots or less becoming southwest
10 to 15 knots. A chance of showers and thunderstorms. Waves
2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-051500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
421 AM EDT Fri Jul 5 2024

.TODAY...Light and variable winds. Waves 1 foot or less.
.TONIGHT...Northeast winds less than 10 knots becoming south. A
chance of showers and thunderstorms early, then showers likely
with a chance of thunderstorms from late evening on. Waves 1 foot
or less.
.SATURDAY...South winds 10 knots or less becoming west. A chance
of showers and thunderstorms in the morning. Waves 1 foot or
less.
.SATURDAY NIGHT...West winds 5 to 15 knots becoming southwest.
Waves 2 feet or less.
.SUNDAY...West winds 10 knots or less becoming south. Waves
2 feet or less.
.MONDAY...Southeast winds less than 10 knots. Waves 1 foot or
less.
.TUESDAY...Southeast winds 10 knots or less becoming southwest
10 to 15 knots. A chance of showers and thunderstorms during the
day, then showers likely with a chance of thunderstorms Tuesday
night. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-051500-
MAFOR 0509/
ONTARIO WEST 1/2 11800 11100 14200 12400. A chance of showers and
thunderstorms tonight. Waves 1 foot or less.

ONTARIO EAST 1/2 11300 11200 13100 11200 11300 11400. A chance of
showers and thunderstorms tonight. Waves 1 foot or less.

$$