714
FZUS61 KBUF 050222
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
922 PM EST Wed Dec 4 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 29.3 inch low will track from just north of Lake
Superior this afternoon to the Saint Lawrence Valley by early
Thursday, then a secondary coastal low will deepen to 28.8 inches
over the Canadian Maritimes Thursday night and Friday. A weak
trough averaging 30.1 inches will cross the Saint Lawrence Valley
Saturday. Meanwhile a 30.4 inch high will settle into the
Southeast States Saturday then move off the Carolina coast Sunday.
The next 29.6 inch surface low centered over northern Wisconsin
Monday will gradually fill in to 29.8 inches by Tuesday,
supporting a warm front so slide across the lake.

LOZ062-051015-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
922 PM EST Wed Dec 4 2024

...GALE WARNING IN EFFECT FROM 4 AM EST THURSDAY THROUGH LATE
THURSDAY NIGHT...

.REST OF TONIGHT...Southwest winds 15 to 25 knots. Rain showers
and snow late this evening, then rain and snow showers likely
after midnight. Waves 5 to 8 feet subsiding to 4 to 7 feet. Waves
occasionally around 10 feet.
.THURSDAY...West winds to 30 knots becoming northwest and
increasing to 35 knot gales in the afternoon. Snow showers likely
in the morning, then a chance of snow showers in the afternoon.
Waves 5 to 8 feet building to 10 to 14 feet. Waves occasionally
around 18 feet.
.THURSDAY NIGHT...Northwest gales to 35 knots diminishing to
30 knots. A chance of snow showers. Waves 10 to 14 feet subsiding
to 6 to 10 feet. Waves occasionally around 18 feet.
.FRIDAY...Northwest winds 15 to 25 knots becoming west to
30 knots. A chance of snow showers in the morning, then lake
effect snow showers likely in the afternoon. Waves 4 to 7 feet
building to 5 to 8 feet. Waves occasionally around 10 feet.
.FRIDAY NIGHT...West winds to 30 knots becoming northwest 15 to
25 knots. Lake effect snow showers likely. Waves 6 to 9 feet
subsiding to 3 to 5 feet. Waves occasionally around 11 feet.
.SATURDAY...Northwest winds 10 to 15 knots becoming southwest and
increasing to 15 to 25 knots. Snow showers likely during the day,
then a chance of snow showers Saturday night. Waves 2 to 4 feet
building to 3 to 6 feet.
.SUNDAY...Southwest winds 15 to 25 knots. A chance of rain
showers Sunday night. Waves 5 to 8 feet subsiding to 3 to 6 feet.
Waves occasionally around 10 feet.
.MONDAY...Southwest winds 15 to 20 knots. Rain during the day,
then showers likely Monday night. Waves 2 to 4 feet.

$$

LOZ063>065-051015-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
922 PM EST Wed Dec 4 2024

...GALE WARNING IN EFFECT FROM 4 AM EST THURSDAY THROUGH LATE
THURSDAY NIGHT...

.REST OF TONIGHT...South winds to 30 knots becoming southwest and
diminishing to 15 to 20 knots. Rain and snow showers, then snow
with rain showers likely late. Waves 5 to 9 feet subsiding to
3 to 6 feet. Waves occasionally around 11 feet.
.THURSDAY...West winds to 30 knots becoming northwest and
increasing to 35 knot gales in the afternoon. Snow showers. Waves
5 to 8 feet building to 11 to 16 feet. Waves occasionally around
20 feet.
.THURSDAY NIGHT...Northwest gales to 35 knots diminishing to
30 knots. A chance of snow showers. Waves 12 to 16 feet subsiding
to 7 to 11 feet. Waves occasionally around 20 feet.
.FRIDAY...Northwest winds 15 to 25 knots becoming west. A chance
of snow showers in the morning, then lake effect snow showers
likely in the afternoon. Waves 6 to 9 feet subsiding to 5 to
8 feet. Waves occasionally around 11 feet.
.FRIDAY NIGHT...West winds to 30 knots becoming northwest 15 to
25 knots. Lake effect snow showers likely. Waves 5 to 9 feet
subsiding to 4 to 7 feet. Waves occasionally around 11 feet.
.SATURDAY...Northwest winds 15 to 25 knots becoming southwest.
Snow showers likely during the day, then snow showers likely with
a chance of rain showers Saturday night. Waves 3 to 5 feet
building to 3 to 6 feet.
.SUNDAY...Southwest winds 15 to 25 knots. A chance of rain
showers. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves
occasionally around 9 feet.
.MONDAY...South winds 15 to 20 knots becoming southwest. Rain
during the day, then showers likely Monday night. Waves 3 to
5 feet.

$$

LOZ061-051015-
MAFOR 0504/
ONTARIO WEST 1/2...GALE WARNING IN EFFECT...11527 11530 11637
11647 11650 12750 11740. A chance of rain showers overnight.
Waves 3 to 6 feet building to 4 to 7 feet, and occasionally
around 9 feet overnight. Waves 5 to 8 feet building to 10 to 14
feet, and occasionally around 18 feet Thursday. Waves 10 to 14
feet, and occasionally around 18 feet Thursday evening.

ONTARIO EAST 1/2...GALE WARNING IN EFFECT...11447 12537 11647
11650 11657 12750. Waves 5 to 8 feet subsiding to 3 to 6 feet,
and occasionally around 10 feet overnight. Waves 5 to 8 feet
building to 11 to 16 feet, and occasionally around 20 feet
Thursday. Waves 12 to 16 feet subsiding to 10 to 14 feet, and
occasionally around 20 feet Thursday evening.

$$

EAJ