Great Lakes Forecast
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899
FZUS61 KBUF 202031
GLFLO

GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
330 PM EST Sat Jan 20 2018

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...An expansive 30.8 inch high centered over the
Southeast will settle off the coastline through Sunday. At the
same time, a 29.1 inch low will track from near James Bay to the
Gulf of Saint Lawrence through tonight. A warm front will lift
across the lake Monday, as a 29.4 inch low moves into the central
Mississippi valley. This low will track across southern Ontario
Tuesday, sweeping a cold front across the lake by Tuesday evening.

LOZ062-063-210400-
Lake Ontario open waters from the Niagara River to Sodus Bay-
330 PM EST Sat Jan 20 2018

.TONIGHT...West winds to 30 knots diminishing to 10 to 15 knots.
Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves occasionally
around 9 feet.
.SUNDAY...Southwest winds 10 knots or less becoming south. A
chance of drizzle in the afternoon. Waves 2 feet or less.
.SUNDAY NIGHT...Southeast winds 10 knots or less becoming east
10 to 15 knots. A chance of rain. Waves 2 feet or less.
.MONDAY...East winds 15 to 20 knots. Rain. Waves 1 to 3 feet
building to 3 to 5 feet.
.MONDAY NIGHT...East winds 15 to 20 knots becoming south. Rain.
Waves 3 to 5 feet subsiding to 1 to 3 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west to
30 knots. Rain showers during the day, then rain and snow showers
likely Tuesday night. Waves 1 to 3 feet building to 5 to 8 feet.
Waves occasionally around 10 feet.
.WEDNESDAY...West winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. A chance of snow showers. Waves
5 to 8 feet subsiding to 2 to 4 feet. Waves occasionally around
10 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming southwest
10 to 15 knots. A chance of snow showers during the day. Waves
3 to 5 feet subsiding to 1 to 3 feet.

$$

LOZ064-065-210400-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
330 PM EST Sat Jan 20 2018

.TONIGHT...West winds 15 to 25 knots diminishing to 5 to
15 knots. Waves in ice free areas 4 to 7 feet subsiding to 1 to
3 feet. Waves in ice free areas occasionally around 9 feet.
.SUNDAY...Southwest winds 10 knots or less becoming south. A
chance of drizzle late. Waves 1 to 3 feet subsiding to 1 foot or
less.
.SUNDAY NIGHT...Southeast winds 10 knots or less becoming east. A
chance of rain and snow in the evening, then a chance of rain,
freezing rain, snow and sleet overnight. Waves 1 foot or less.
.MONDAY...East winds 5 to 15 knots. Rain likely, a chance of
freezing rain and sleet in the morning, then rain in the
afternoon. Waves 2 feet or less.
.MONDAY NIGHT...Southeast winds 10 to 15 knots increasing to
15 to 20 knots. Rain. Waves 1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots becoming west and
increasing to 30 knots. Rain showers during the day, then rain
and snow showers likely Tuesday night. Waves 1 to 3 feet building
to 5 to 8 feet. Waves occasionally around 10 feet.
.WEDNESDAY...West winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. Lake effect snow showers likely
during the day, then a chance of snow showers Wednesday night.
Waves 5 to 8 feet subsiding to 2 to 4 feet. Waves occasionally
around 10 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming southwest and
diminishing to 5 to 10 knots. Waves 3 to 5 feet subsiding to 1 to
3 feet.

Wave heights are for ice free areas.

$$

LOZ061-210400-
MAFOR 2022/
ONTARIO WEST 1/2 11530 11620 12610 13500 11400. A chance of
drizzle Sunday afternoon. Waves 3 to 6 feet subsiding to 1 to 3
feet tonight. Waves 2 feet or less Sunday.

ONTARIO EAST 1/2 11630 11620 12610 11600 12500 11400. A chance of
drizzle Sunday afternoon. Waves 4 to 7 feet subsiding to 1 to 3
feet, and occasionally around 9 feet tonight. Waves 1 to 3 feet
subsiding to 1 foot or less Sunday.

$$



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