National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FZUS61 KBUF 160839
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
439 AM EDT Tue Apr 16 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...An expansive 30.2 inch high will build southeast across
the eastern Great Lakes region today. Meanwhile, a large storm
system will move from the central and northern Plains today to the
upper Mississippi Valley tonight, before shifting east into the
Great Lakes Wednesday. The weakening storm system will pass to the
northwest of the Lake Wednesday night and Thursday sending an
attendant weak cold front across the Lake Wednesday night. The
next storm system will then slowly cross northern Ontario and
northern Quebec Friday and Saturday sending a secondary cold front
across the Lake Friday night, while expansive high pressure moves
from the Canadian Rockies to the central Plains.

LOZ062-161730-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
439 AM EDT Tue Apr 16 2024

.TODAY...Northwest winds 10 knots or less becoming southwest.
Waves 2 feet or less.
.TONIGHT...Northwest winds less than 10 knots becoming east and
increasing to 15 to 25 knots after midnight. Waves 2 feet or less
building to 3 to 5 feet.
.WEDNESDAY...East winds to 30 knots. Showers likely in the
morning, then showers with a chance of thunderstorms in the
afternoon. Waves 5 to 8 feet building to 7 to 11 feet. Waves
occasionally around 14 feet.
.WEDNESDAY NIGHT...East winds to 30 knots becoming southeast and
diminishing to 15 to 20 knots. Showers with a chance of
thunderstorms. Waves 6 to 10 feet subsiding to 4 to 7 feet. Waves
occasionally around 13 feet.
.THURSDAY...South winds 5 to 15 knots becoming southeast.
Occasional showers during the day, then a chance of showers
Thursday night. Waves 3 to 6 feet subsiding to 1 to 2 feet.
.FRIDAY...South winds 10 to 15 knots becoming west. A chance of
showers. Waves 1 to 3 feet.
.SATURDAY...West winds 15 to 20 knots becoming northwest 10 to
15 knots. A chance of showers during the day. Waves 2 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-161730-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
439 AM EDT Tue Apr 16 2024

.TODAY...Northwest winds 10 knots or less becoming west. Waves
1 to 3 feet subsiding to 1 foot or less.
.TONIGHT...West winds 10 knots or less becoming northeast and
increasing to 15 to 20 knots after midnight. Waves 1 to 3 feet.
.WEDNESDAY...Northeast winds 15 to 25 knots becoming east. A
chance of rain showers in the morning, then rain showers likely
in the afternoon. Waves 2 to 4 feet building to 4 to 7 feet.
Waves occasionally around 9 feet.
.WEDNESDAY NIGHT...East winds 15 to 20 knots becoming southeast.
Showers with a chance of thunderstorms. Waves 3 to 6 feet.
.THURSDAY...Southeast winds 15 to 25 knots. Occasional showers.
Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves occasionally
around 9 feet.
.FRIDAY...South winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. A chance of showers. Waves 1 to
3 feet.
.SATURDAY...West winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of rain showers. Waves 2 to 4 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-161730-
MAFOR 1609/
ONTARIO WEST 1/2 12700 11600 11500 11600 11800 11110 11220. Waves
2 feet or less today. Waves 2 feet or less building to 2 to 4
feet tonight.

ONTARIO EAST 1/2 12700 14600 11100 11110. Waves 1 to 3 feet
subsiding to 1 foot or less today. Waves 2 feet or less tonight.

$$