Great Lakes Forecast
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000
FZUS61 KBUF 190845
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
445 AM EDT Tue Mar 19 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...Cyclonic flow from a 29.2 inch low over the Canadian
Maritimes along with a 29.4 inch low that will track southeast
across the Great Lakes through Wednesday will keep a wintry like
pattern in place. A 30.5 inch surface high will then expand across
the Lake later Thursday through Friday. A 30.12 inch northern
stream wave will track across the Lake on Saturday as a stronger
sfc low tracks along the coast.

LOZ062-191515-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
445 AM EDT Tue Mar 19 2024

...GALE WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH LATE
WEDNESDAY NIGHT...

.TODAY...West winds 15 to 25 knots becoming southwest to
30 knots. Snow showers likely this morning, then more widespread
snow during the midday and afternoon. Waves 4 to 7 feet building
to 6 to 9 feet. Waves occasionally around 11 feet.
.TONIGHT...Southwest winds 15 to 25 knots becoming west. A chance
of snow showers early. Waves 6 to 9 feet subsiding to 3 to 5
feet. Waves occasionally around 11 feet.
.WEDNESDAY...West winds to 30 knots with frequent gale force
gusts. Scattered flurries in the morning, then a chance of snow
showers in the afternoon. Waves building to 9 to 12 feet. Waves
occasionally around 15 feet.
.WEDNESDAY NIGHT...Northwest gales to 35 knots diminishing to
30 knots. A chance of snow showers. Waves 9 to 13 feet subsiding
to 8 to 11 feet. Waves occasionally around 16 feet.
.THURSDAY...Northwest winds to 30 knots. Waves 6 to 9 feet. Waves
occasionally around 11 feet.
.FRIDAY...East winds 10 to 15 knots. A chance of snow showers
during the day, then snow likely Friday night. Waves 1 to 3 feet.
.SATURDAY...North winds 10 to 15 knots. A chance of snow showers.
Waves 2 to 4 feet.

$$

LOZ063>065-191515-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
445 AM EDT Tue Mar 19 2024

...GALE WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH LATE
WEDNESDAY NIGHT...

.TODAY...West winds 15 to 25 knots becoming southwest. Snow.
Waves 3 to 6 feet building to 4 to 7 feet. Waves occasionally
around 9 feet.
.TONIGHT...Southwest winds 15 to 25 knots. Snow showers likely
through the early overnight, then just a chance of snow showers
late. Waves 5 to 8 feet subsiding to 2 to 4 feet. Waves
occasionally around 10 feet.
.WEDNESDAY...West winds 15 to 25 knots increasing to 35 knot
gales. A chance of snow showers in the morning, then snow showers
likely in the afternoon. Waves building to 10 to 14 feet. Waves
occasionally around 18 feet.
.WEDNESDAY NIGHT...West gales to 35 knots becoming northwest. A
chance of snow showers. Waves 11 to 16 feet. Waves occasionally
around 20 feet.
.THURSDAY...Northwest winds diminishing to 15 to 20 knots. Waves
10 to 13 feet subsiding to 4 to 7 feet. Waves occasionally around
16 feet.
.FRIDAY...Northeast winds 10 to 15 knots. A chance of snow
showers during the day, then snow likely Friday night. Waves 1 to
3 feet.
.SATURDAY...Northeast winds 10 to 15 knots becoming northwest
15 to 20 knots. Snow likely. Waves 1 to 3 feet building to 2 to 4
feet.

$$

LOZ061-191515-
MAFOR 1909/
ONTARIO WEST 1/2 12620 12537 11530 11520 11510 11620. Waves 3 to
6 feet building to 6 to 9 feet, and occasionally around 11 feet
today. Waves 6 to 9 feet subsiding to 2 to 4 feet, and
occasionally around 11 feet tonight.

ONTARIO EAST 1/2 13627 12537 11520 12510. Waves 3 to 6 feet
building to 4 to 7 feet, and occasionally around 9 feet today.
Waves 5 to 8 feet subsiding to 2 to 4 feet, and occasionally
around 10 feet tonight.

$$

JM/RSH


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