Great Lakes Forecast
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600
FZUS61 KBUF 201433
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
933 AM 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.

LOZ062-063-202215-
Lake Ontario open waters from the Niagara River to Sodus Bay-
933 AM EST Sat Jan 20 2018

.THIS AFTERNOON...West winds to 30 knots diminishing to 15 to 25
knots. Waves 10 to 14 feet subsiding to 5 to 8 feet. Waves
occasionally around 18 feet.
.TONIGHT...Southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. Waves 4 to 7 feet subsiding to 2
to 4 feet. Waves occasionally around 9 feet.
.SUNDAY...West winds 10 knots or less becoming southeast. Waves
1 to 3 feet subsiding to 1 foot or less.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots becoming east 15 to
20 knots. A chance of rain. Waves 1 to 3 feet building to 2 to
4 feet.
.MONDAY...Northeast winds 15 to 25 knots becoming southeast.
Rain. Waves 3 to 5 feet building to 4 to 7 feet, then subsiding
to 2 to 4 feet. Waves occasionally around 9 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west and
increasing to 35 knot gales. Rain showers during the day, then
snow and rain showers likely Tuesday night. Waves 2 to 4 feet
building to 8 to 11 feet. Waves occasionally around 14 feet.
.WEDNESDAY...West gales to 35 knots becoming northwest and
diminishing to 15 to 20 knots. A chance of snow showers. Waves
7 to 11 feet subsiding to 4 to 7 feet. Waves occasionally around
14 feet.

$$

LOZ064-065-202215-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
933 AM EST Sat Jan 20 2018

.THIS AFTERNOON...West winds to 30 knots diminishing to 15 to 25
knots. Waves in ice free areas 10 to 13 feet subsiding to 5 to 8
feet. Waves in ice free areas occasionally around 16 feet.
.TONIGHT...West winds 15 to 20 knots diminishing to 10 to 15
knots. Waves 4 to 7 feet subsiding to 2 to 4 feet. Waves
occasionally around 9 feet.
.SUNDAY...Southwest winds 10 knots or less becoming south. Waves
1 to 3 feet subsiding to 1 foot or less.
.SUNDAY NIGHT...Southeast winds 10 knots or less becoming
northeast 10 to 15 knots. A chance of rain and snow. Waves 2 feet
or less.
.MONDAY...Northeast winds 15 to 20 knots becoming southeast. Rain
with a chance of snow during the day, then rain Monday night.
Waves 1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots becoming west and
increasing to 35 knot gales. Rain showers during the day, then
snow and rain showers likely Tuesday night. Waves 1 to 3 feet
building to 8 to 11 feet. Waves occasionally around 14 feet.
.WEDNESDAY...West winds to 30 knots becoming northwest 15 to 25
knots. A chance of snow showers. Waves 7 to 11 feet subsiding to 3
to 6 feet. Waves occasionally around 14 feet.

Wave heights are for ice free areas.

$$

LOZ061-202215-
MAFOR 2016/
ONTARIO WEST 1/2 11640 11630 11530 12520 12510 11600. Waves 6 to
10 feet subsiding to 4 to 7 feet, and occasionally around 13 feet
this afternoon. Waves 3 to 6 feet subsiding to 1 to 3 feet
tonight. Waves 1 to 3 feet Sunday morning.

ONTARIO EAST 1/2 11640 12630 12620 12610 11500. Waves 7 to 11
feet subsiding to 5 to 8 feet, and occasionally around 14 feet
this afternoon. Waves 4 to 7 feet subsiding to 2 to 4 feet, and
occasionally around 9 feet tonight. Waves 1 to 3 feet Sunday
morning.

$$



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