888
FZUS61 KBUF 071431
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1031 AM EDT Mon Apr 7 2025

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 compact 29.6 inch low pressure near Georgian Bay this
afternoon will move east to the Ottawa Valley by this evening while
dragging a strong cold front across the lake. A 30.2 inch high will
build across the lake tomorrow through Wednesday. A 29.9 inch low
over the Ohio Valley Thursday will pass just south of the lake
Thursday night and reach the Atlantic coastline Friday. Multiple
surface waves will advance along a stalled eastern seaboard frontal
boundary Friday through Saturday.

LOZ062-072100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1031 AM EDT Mon Apr 7 2025

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH TUESDAY
AFTERNOON...

.THIS AFTERNOON...South winds 5 to 15 knots becoming southeast. A
chance of rain showers late. Waves 2 feet or less.
.TONIGHT...Southwest winds 15 to 20 knots becoming west and
increasing to 35 knot gales after midnight. Rain and snow showers
likely early, then a chance of snow showers late in the evening.
A chance of snow showers late. Waves 3 to 5 feet building to
10 to 14 feet. Waves occasionally around 18 feet.
.TUESDAY...Northwest gales to 35 knots diminishing to 30 knots. A
chance of snow showers. Waves 10 to 14 feet subsiding to 8 to
11 feet. Waves occasionally around 18 feet.
.TUESDAY NIGHT...Northwest winds to 30 knots becoming west and
diminishing to 10 to 15 knots. Waves 8 to 11 feet subsiding to
2 to 4 feet. Waves occasionally around 14 feet.
.WEDNESDAY...West winds 10 to 15 knots becoming southeast. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.THURSDAY...East winds 15 to 20 knots becoming northeast 10 to
15 knots. Rain showers likely with a chance of snow showers
during the day, then rain showers likely Thursday night. Waves
1 to 3 feet building to 2 to 4 feet.
.FRIDAY...Northeast winds 10 to 15 knots becoming north. A chance
of rain showers. Waves 2 to 3 feet.

$$

LOZ063>065-072100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1031 AM EDT Mon Apr 7 2025

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH TUESDAY
AFTERNOON...

.THIS AFTERNOON...South winds 5 to 10 knots becoming east. Waves
1 foot or less.
.TONIGHT...South winds 5 to 10 knots becoming west and increasing
to 40 knot gales after midnight. Rain and snow showers likely in
the evening, then a chance of snow showers after midnight. Waves
1 foot or less building to 13 to 17 feet. Waves occasionally
around 22 feet.
.TUESDAY...West gales to 35 knots becoming northwest and
diminishing to 30 knots. Snow showers likely in the morning, then
a chance of snow showers in the afternoon. Waves 12 to 17 feet
subsiding to 10 to 15 feet. Waves occasionally around 22 feet.
.TUESDAY NIGHT...Northwest winds to 30 knots diminishing to 15 to
25 knots. Waves 9 to 13 feet subsiding to 4 to 7 feet. Waves
occasionally around 16 feet.
.WEDNESDAY...West winds 15 to 20 knots becoming south 10 to
15 knots. A chance of snow showers during the day. Waves 3 to
5 feet subsiding to 1 to 3 feet.
.THURSDAY...Southeast winds 10 to 15 knots becoming east. Rain
showers likely with a chance of snow showers during the day, then
rain showers likely Thursday night. Waves 1 to 3 feet.
.FRIDAY...Northeast winds 10 to 15 knots. A chance of rain
showers. Waves 1 to 3 feet.

$$

LOZ061-072100-
MAFOR 0715/
ONTARIO WEST 1/2...GALE WARNING IN EFFECT...11300 11200 11410
11640 12650 12750. A chance of rain showers this afternoon. A
chance of rain and snow showers this evening. A chance of snow
showers Tuesday morning. Waves 2 feet or less this afternoon.
Waves 3 to 5 feet building to 10 to 15 feet, and occasionally
around 19 feet tonight. Waves 10 to 15 feet, and occasionally
around 19 feet Tuesday morning.

ONTARIO EAST 1/2...GALE WARNING IN EFFECT...11400 11100 11200
11527 14650. Waves 1 foot or less this afternoon. Waves 1 foot or
less building to 13 to 17 feet, and occasionally around 22 feet
tonight. Waves 12 to 17 feet, and occasionally around 22 feet
Tuesday morning.

$$