Great Lakes Forecast
Issued by NWS

Current Version | Previous Version | Text Only | 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 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FZUS61 KBUF 211735
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
135 PM EDT Wed Jun 21 2017

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 30.0 inch high over the central Great Lakes will
settle across the Lower Lakes through tonight. As this high moves
east on Thursday...a warm front will push across the lake...followed
by a cold front which will cross the lake on Friday. After that...
a 30.0 inch high will ridge from the Ohio River Valley to Lake
Erie over the weekend.

LOZ062-212100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
135 PM EDT Wed Jun 21 2017

.THIS AFTERNOON...West winds 10 to 15 knots. Waves 1 to 3 feet.
.TONIGHT...West winds 5 to 15 knots becoming northwest. Waves
2 feet or less.
.THURSDAY...Southwest winds 10 knots or less becoming southeast.
A chance of showers and thunderstorms in the afternoon. Waves
2 feet or less.
.THURSDAY NIGHT...South winds 5 to 15 knots becoming southwest
15 to 20 knots. A chance of showers and thunderstorms in the
evening...then showers likely with a chance of thunderstorms
overnight. Waves 2 feet or less.
.FRIDAY...Southwest winds 10 to 15 knots becoming west 5 to
10 knots. Showers likely with a chance of thunderstorms during
the day...then a chance of showers Friday night. Waves 2 to
4 feet subsiding to 1 to 3 feet.
.SATURDAY...Northwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of showers and thunderstorms during the day.
Waves 1 to 3 feet building to 2 to 4 feet.
.SUNDAY...West winds 15 to 20 knots diminishing to 5 to 15 knots.
A chance of showers. Waves 2 to 4 feet subsiding to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-212100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
135 PM EDT Wed Jun 21 2017

.THIS AFTERNOON...West winds 15 to 20 knots diminishing to 10 to
15 knots. Waves 2 to 3 feet.
.TONIGHT...West winds 5 to 15 knots. Waves 1 to 3 feet.
.THURSDAY...West winds 5 to 15 knots becoming southeast. A chance
of showers in the afternoon. Waves 1 foot or less.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots becoming
southwest. A chance of showers and thunderstorms in the evening...
then showers likely with a chance of thunderstorms overnight.
Waves 1 to 3 feet.
.FRIDAY...South winds 10 to 15 knots becoming west. Showers
likely with a chance of thunderstorms. Waves 1 to 3 feet.
.SATURDAY...West winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers and thunderstorms during the day.
Waves 1 to 3 feet building to 3 to 5 feet...then subsiding to
2 to 3 feet.
.SUNDAY...West winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers. Waves 2 to 4 feet building to 3 to
5 feet...then subsiding to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-212100-
MAFOR 2118 AMD/
ONTARIO WEST 1/2 12610 11600 12700 11600 11500. Waves 1 to 3 feet
this afternoon. Waves 2 feet or less tonight and Thursday
morning.

ONTARIO EAST 1/2 13610 13600 11500. Waves 1 to 3 feet.

$$

JJR



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