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 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
787
FZUS61 KBUF 131743
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1243 PM EST Wed Dec 13 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 weak 29.6 inch ridge will cross the lake tonight. A
30.1 inch high over the Upper Mid West Thursday morning will
settle over the Upper Ohio Valley Thursday afternoon and night. A
29.7 low over the Upper Great Lakes on Friday will cross the lake
Friday night.

LOZ062-132215-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1243 PM EST Wed Dec 13 2017

.THIS AFTERNOON...Northwest winds 15 to 25 knots. A chance of snow
showers. Waves 4 to 7 feet. Waves occasionally around 9 feet.
.TONIGHT...Northwest winds 10 to 15 knots becoming north 15 to
20 knots. A chance of snow showers early, then snow likely late
in the evening. A chance of snow showers after midnight. Waves
3 to 5 feet subsiding to 1 to 3 feet.
.THURSDAY...North winds 15 to 20 knots becoming west. A chance of
snow showers in the afternoon. Waves 3 to 5 feet.
.THURSDAY NIGHT...West winds 15 to 20 knots. A chance of snow
showers. Waves 3 to 5 feet subsiding to 2 to 4 feet.
.FRIDAY...Southwest winds 15 to 25 knots becoming west. Snow
showers likely. Waves 2 to 4 feet building to 3 to 5 feet.
.SATURDAY...West winds 15 to 25 knots becoming south and
diminishing to 5 to 15 knots. A chance of snow showers. Waves
3 to 6 feet subsiding to 1 to 2 feet.
.SUNDAY...Southwest winds 15 to 20 knots becoming west. A chance
of snow and rain showers during the day, then a chance of snow
showers Sunday night. Waves 2 to 4 feet building to 3 to 6 feet.

$$

LOZ063>065-132215-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1243 PM EST Wed Dec 13 2017

.THIS AFTERNOON...Northwest winds to 30 knots diminishing to 15 to
25 knots. A chance of snow showers. Waves 5 to 8 feet. Waves
occasionally around 10 feet.
.TONIGHT...Northwest winds 15 to 20 knots becoming north. A
chance of snow showers early, then snow likely late in the
evening. A chance of snow showers after midnight. Waves 4 to
7 feet subsiding to 1 to 3 feet. Waves occasionally around
9 feet.
.THURSDAY...North winds 15 to 25 knots becoming northwest. A
chance of snow showers in the morning, then snow showers likely
in the afternoon. Waves 3 to 6 feet building to 4 to 7 feet.
Waves occasionally around 9 feet.
.THURSDAY NIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots. Lake effect snow. Waves 4 to 7 feet subsiding to 2 to
4 feet. Waves occasionally around 9 feet.
.FRIDAY...Southwest winds 15 to 25 knots. Snow showers likely.
Waves 3 to 5 feet.
.SATURDAY...Northwest winds 15 to 25 knots becoming south and
diminishing to 5 to 15 knots. Snow showers likely during the day,
then a chance of snow showers Saturday night. Waves 4 to 7 feet
subsiding to 1 to 3 feet. Waves occasionally around 9 feet.
.SUNDAY...South winds 15 to 25 knots becoming west. A chance of
snow and rain showers during the day, then a chance of snow
showers Sunday night. Waves 2 to 4 feet building to 3 to 6 feet.

$$

LOZ061-132215-
MAFOR 1316/
ONTARIO WEST 1/2 12730 11720 12810 12820 11710. A chance of snow
showers this evening. Waves 5 to 8 feet this afternoon. Waves 3
to 6 feet subsiding to 1 to 3 feet tonight. Waves 3 to 5 feet
Thursday morning.

ONTARIO EAST 1/2 12730 11720 11717 11817 12820 11710. A chance of
snow showers this afternoon and Thursday morning. Waves 5 to 8
feet this afternoon. Waves 4 to 7 feet subsiding to 1 to 3 feet
tonight. Waves 3 to 5 feet Thursday morning.

$$



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