Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
000
FZUS61 KBUF 181346
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
946 AM EDT Thu Apr 18 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 stacked 29.7 inch low centered over western Ontario
will push a weakening frontal boundary across the eastern half of
the lake today. While weak high pressure will cross the lake late
today and tonight...a wavy frontal boundary will move through on
Friday. A 29.4 inch low over northern Quebec Friday night will
continue to move away from the region on Saturday...while an
expansive 30.6 inch high will move from the Canadian Rockies to
the northern plains. The large high will continue to push south to
the Lower Mississippi valley by late Sunday. The high will be
centered over the Ohio valley on Monday.

LOZ062-182130-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
946 AM EDT Thu Apr 18 2024

.REST OF TODAY...Southwest winds 10 to 15 knots. Scattered
showers late this morning. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 10 knots or less becoming southeast. A
chance of showers late. Waves 2 feet or less.
.FRIDAY...Southeast winds 10 to 15 knots becoming west 15 to
20 knots. Showers. Waves 1 to 3 feet building to 2 to 4 feet.
.FRIDAY NIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots. Waves 2 to 4 feet.
.SATURDAY...West winds 15 to 20 knots. A chance of rain showers
during the day. Waves 3 to 6 feet.
.SUNDAY...West winds 15 to 20 knots diminishing to 10 to
15 knots. Waves 2 to 4 feet.
.MONDAY...West winds 10 to 15 knots becoming southwest. Waves
1 to 3 feet.

$$

LOZ063>065-182130-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
946 AM EDT Thu Apr 18 2024

.REST OF TODAY...Southwest winds 10 to 15 knots. Scattered
showers. Waves 1 to 3 feet.
.TONIGHT...South winds 10 to 15 knots becoming southeast 15 to
20 knots. A chance of showers early. Waves 1 to 3 feet.
.FRIDAY...Southeast winds 15 to 25 knots becoming southwest.
Showers. Waves 2 to 4 feet building to 3 to 6 feet.
.FRIDAY NIGHT...Southwest winds 15 to 20 knots becoming west
10 to 15 knots. A chance of showers in the evening. Waves 3 to
6 feet subsiding to 2 to 4 feet.
.SATURDAY...Southwest winds 15 to 25 knots becoming west 15 to
20 knots. A chance of rain showers during the day. Waves 3 to
5 feet building to 5 to 9 feet, then subsiding to 4 to 7 feet.
Waves occasionally around 11 feet.
.SUNDAY...West winds 15 to 25 knots diminishing to 10 to
15 knots. Waves 3 to 6 feet subsiding to 2 to 4 feet.
.MONDAY...West winds 5 to 15 knots becoming south. Waves 2 to
4 feet subsiding to 1 to 3 feet.

$$

LOZ061-182130-
MAFOR 1815/
ONTARIO WEST 1/2 12510 12500 11400 11300 11310 11316. Waves 2
feet or less this afternoon and tonight. Waves 1 to 3 feet Friday
morning.

ONTARIO EAST 1/2 11510 11510 19516 12410 12310 11320 11330. Waves
1 to 3 feet this afternoon and tonight. Waves 2 to 4 feet
building to 3 to 5 feet Friday morning.

$$

Hitchcock


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.