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
000
FZUS61 KBUF 130250
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
950 PM 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 29.3 inch low over New England will lift to
northern Maine by daybreak Wednesday. The low will deepen to 28.9
inches during the day Wednesday...while it will continue its
northward track across the eastern portion of Quebec. A weak 29.6
inch ridge will cross the lake Late Wednesday and Wednesday night.
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.

LOZ062-131015-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
950 PM EST Tue Dec 12 2017

.OVERNIGHT...Northwest winds to 30 knots. Lake effect snow
showers likely. Waves 5 to 8 feet. Waves occasionally around 10
feet.
.WEDNESDAY...Northwest winds to 30 knots. Waves 6 to 10 feet.
Waves occasionally around 13 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 25 knots. A chance of
snow showers. Waves 5 to 8 feet subsiding to 3 to 5 feet. Waves
occasionally around 10 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming west. A
chance of snow showers. Waves 3 to 6 feet.
.THURSDAY NIGHT...West winds 15 to 25 knots. A chance of snow
showers. Waves 3 to 6 feet.
.FRIDAY...Southwest winds 15 to 20 knots. Snow showers likely.
Waves 3 to 5 feet.
.SATURDAY...West winds 15 to 25 knots. A chance of snow showers.
Waves 3 to 5 feet.
.SUNDAY...Southwest winds 15 to 20 knots. A chance of snow
showers. Waves 3 to 5 feet.

$$

LOZ063>065-131015-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
950 PM EST Tue Dec 12 2017

.OVERNIGHT...West winds 15 to 25 knots becoming northwest to 30
knots. Lake effect snow. Waves 5 to 9 feet. Waves occasionally
around 11 feet.
.WEDNESDAY...Northwest winds to 30 knots becoming west. Scattered
snow showers in the morning. Waves 8 to 12 feet. Waves
occasionally around 15 feet.
.WEDNESDAY NIGHT...Northwest winds to 30 knots diminishing to
15 to 20 knots. Snow showers likely in the evening, then a chance
of snow showers overnight. Waves 8 to 11 feet subsiding to 3 to
5 feet. Waves occasionally around 14 feet.
.THURSDAY...Northwest winds 15 to 25 knots becoming west. A
chance of snow showers in the morning, then lake effect 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 25 knots becoming northwest.
Lake effect snow showers likely. Waves subsiding to 3 to 6 feet.
.FRIDAY...West winds 15 to 20 knots. Snow showers likely. Waves 3
to 5 feet.
.SATURDAY...West winds 15 to 25 knots. Snow showers likely. Waves
3 to 5 feet.
.SUNDAY...Southwest winds 15 to 25 knots. A chance of snow
showers. Waves 3 to 5 feet.

$$

LOZ061-131015-
MAFOR 1304/
ONTARIO WEST 1/2 12730 13740 11640 11740 11720. A chance of snow
showers overnight. A chance of snow Wednesday evening. Waves 5 to
8 feet overnight. Waves 7 to 11 feet Wednesday. Waves 6 to 9 feet
subsiding to 3 to 6 feet Wednesday evening.

ONTARIO EAST 1/2 12737 13740 11640 11740 11720. A chance of snow
showers Wednesday. A chance of snow Wednesday evening. Waves 5 to
8 feet overnight. Waves 8 to 12 feet Wednesday. Waves 8 to 11
feet subsiding to 6 to 9 feet Wednesday evening.

$$


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