Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
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 120535
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1235 AM EST Tue Dec 12 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 29.6 inch low will 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.

LOZ062-121000-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1235 AM EST Tue Dec 12 2017

.OVERNIGHT...Southeast winds 5 to 10 knots. Snow. Waves
1 to 3 feet.
.TUESDAY...Northeast winds 5 to 10 knots becoming northwest and
increasing to 15 to 25 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>065-121000-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1235 AM EST Tue Dec 12 2017

.OVERNIGHT...Southeast winds 15 to 20 knots becoming south.
Snow. Waves 3 to 5 feet.
.TUESDAY...South winds 10 to 15 knots becoming northwest and
increasing to 15 to 25 knots. Snow. Waves 3 to 6 feet building to
7 to 10 feet. Waves occasionally around 13 feet.
.TUESDAY NIGHT...Northwest winds 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.

$$

LOZ061-121000-
MAFOR 1207 AMD/
ONTARIO WEST 1/2 11307 11207 11827 11727 12737 11747. Waves 1 to
3 feet overnight. Waves 2 to 4 feet building to 5 to 8 feet, and
occasionally around 10 feet Tuesday. Waves 5 to 8 feet, and
occasionally around 10 feet Tuesday evening.

ONTARIO EAST 1/2 12417 11317 11717 12737 11747. Waves 3 to 5 feet
overnight. Waves 3 to 6 feet building to 7 to 10 feet, and
occasionally around 13 feet Tuesday. Waves 6 to 9 feet subsiding
to 4 to 7 feet, and occasionally around 11 feet Tuesday evening.

$$

JJR



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