National Weather Service Weather Forecast Office

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

000
FZUS61 KBUF 220831
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
431 AM EDT Mon Apr 22 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 30.4 inch high will weaken to 30.2
inches as it will move east to the Mid Atlantic region this
afternoon. This high will slip off the coast Tuesday, while a
29.5 inch surface low will deepen across the western Great Lakes.
The low will slowly weaken to 29.7 inches as it will cross the
Lake late Tuesday night and Wednesday while dragging a cold front
across the Lake. A 30.4 inch high will then build across the Lake
Wednesday night through Thursday night.

LOZ062-221530-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
431 AM EDT Mon Apr 22 2024

.TODAY...Northwest winds 10 to 15 knots becoming southwest. Waves
2 feet or less.
.TONIGHT...South winds 10 to 15 knots. Waves 1 to 3 feet.
.TUESDAY...South winds 15 to 25 knots becoming southwest. A
chance of showers in the afternoon. Waves 1 to 3 feet building to
4 to 7 feet. Waves occasionally around 9 feet.
.TUESDAY NIGHT...Southwest winds 15 to 20 knots becoming west
10 to 15 knots. Rain. Waves 3 to 6 feet.
.WEDNESDAY...North winds 15 to 20 knots becoming northeast. A
chance of rain and snow showers. Waves 3 to 6 feet.
.THURSDAY...East winds 5 to 10 knots. Waves 1 to 2 feet.
.FRIDAY...East winds 10 to 15 knots. A chance of rain showers
Friday night. Waves 1 to 2 feet.

$$

LOZ063>065-221530-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
431 AM EDT Mon Apr 22 2024

.TODAY...North winds 10 knots or less becoming southwest. Waves
1 to 3 feet.
.TONIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots. Waves 1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots becoming southwest. A
chance of showers in the afternoon. Waves 2 to 4 feet building to
3 to 5 feet, then subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots. Rain. Waves 2 to
4 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots becoming northeast
and diminishing to 10 to 15 knots. Occasional rain showers with a
chance of snow showers. Waves 4 to 7 feet subsiding to 2 to 4
feet. Waves occasionally around 9 feet.
.THURSDAY...Northeast winds 5 to 10 knots becoming southeast.
Waves 1 to 3 feet.
.FRIDAY...Southeast winds increasing to 15 to 20 knots. Waves 2
feet or less.

$$

LOZ061-221530-
MAFOR 2209/
ONTARIO WEST 1/2 12700 11600 11500 14410. Waves 1 to 3 feet.

ONTARIO EAST 1/2 11800 11700 11600 11500 12400 12410. Waves 2 to
4 feet subsiding to 1 to 3 feet today. Waves 2 feet or less
tonight.

$$

JJR/RSH