Great Lakes Forecast
Issued by NWS

Home | 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
300
FZUS61 KBUF 112053
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
353 PM EST Mon Dec 11 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 ridge of high pressure averaging 30.0 inches will
move across the lake today. Another 29.6 inch low will then track
across the Lower Great Lakes Tuesday. Following the passage of
this system, 30.1 inch high pressure will build briefly across
the lower lakes Wednesday night and Thursday.

LOZ062-120415-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
353 PM EST Mon Dec 11 2017

.TONIGHT...Southeast winds 10 to 15 knots. Snow. Waves 1 to
3 feet.
.TUESDAY...South winds 10 to 15 knots becoming west and
increasing to 30 knots in the afternoon. Snow. Waves 1 to 3 feet
building to 5 to 8 feet. Waves occasionally around 10 feet.
.TUESDAY NIGHT...Northwest winds to 30 knots. Snow. Waves 5 to
8 feet building to 6 to 9 feet. Waves occasionally around
11 feet.
.WEDNESDAY...Northwest winds to 30 knots becoming west. Snow in
the morning, then snow showers likely in the afternoon. Waves
7 to 10 feet. Waves occasionally around 13 feet.
.WEDNESDAY NIGHT...West winds to 30 knots becoming northwest
15 to 25 knots. A chance of snow showers in the evening, then
snow showers likely overnight. Waves 6 to 10 feet subsiding to
3 to 6 feet. Waves occasionally around 13 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming west 5 to
15 knots. A chance of snow showers. Waves 3 to 5 feet subsiding
to 1 to 3 feet.
.FRIDAY...Southwest winds 5 to 15 knots becoming west. A chance
of snow showers. Waves 2 feet or less building to 2 to 4 feet.
.SATURDAY...West winds 15 to 20 knots becoming southwest 10 to
15 knots. A chance of snow showers. Waves 3 to 5 feet subsiding
to 2 to 4 feet.

$$

LOZ063>065-120415-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
353 PM EST Mon Dec 11 2017

.TONIGHT...Southeast winds 10 to 15 knots increasing to 15 to
25 knots. A chance of snow early, then snow from late evening on.
Waves 2 feet or less building to 3 to 5 feet.
.TUESDAY...South winds 15 to 25 knots becoming west to 30 knots.
Snow. Waves 3 to 6 feet building to 7 to 10 feet. Waves
occasionally around 13 feet.
.TUESDAY NIGHT...Northwest winds 15 to 25 knots increasing to
30 knots. Snow. Waves 6 to 9 feet building to 6 to 10 feet. Waves
occasionally around 13 feet.
.WEDNESDAY...Northwest winds to 30 knots becoming west. Snow.
Waves 8 to 11 feet. Waves occasionally around 14 feet.
.WEDNESDAY NIGHT...West winds to 30 knots becoming northwest
15 to 25 knots. Lake effect snow showers. Waves 8 to 11 feet
subsiding to 6 to 9 feet. Waves occasionally around 14 feet.
.THURSDAY...Northwest winds 15 to 20 knots diminishing to 5 to
10 knots. Snow showers likely during the day, then a chance of
snow showers Thursday night. Waves 4 to 7 feet subsiding to 2 to
4 feet. Waves occasionally around 9 feet.
.FRIDAY...South winds 5 to 15 knots becoming west. A chance of
snow showers. Waves 1 to 3 feet building to 2 to 4 feet.
.SATURDAY...West winds 15 to 20 knots becoming southwest 10 to
15 knots. A chance of snow showers. Waves 2 to 4 feet building to
3 to 5 feet, then subsiding to 2 to 4 feet.

$$

LOZ061-120415-
MAFOR 1122/
ONTARIO WEST 1/2 11310 14317 11527 11637 11647. A chance of snow
showers early this evening. Waves 1 to 3 feet building to 2 to 4
feet, then subsiding to 1 to 3 feet tonight. Waves 2 to 4 feet
building to 5 to 8 feet Tuesday.

ONTARIO EAST 1/2 11310 11320 12327 11337 11437 11547 11647. Waves
2 feet or less building to 3 to 5 feet tonight. Waves 3 to 6 feet
building to 6 to 9 feet Tuesday.

$$


AR/HITCHCOCK/ZAFF



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