Great Lakes Forecast
Issued by NWS

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000
FZUS61 KBUF 162039
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
339 PM EST Sat Dec 16 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 30.4 inch high will build across southern Ontario
tonight before moving off the Eastern Seaboard by Monday. On
Tuesday a 29.1 inch low across Hudson Bay will gradually move into
northern Quebec on Wednesday.

LOZ062-170415-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
339 PM EST Sat Dec 16 2017

.TONIGHT...North winds 15 to 20 knots becoming northeast and
diminishing to 10 knots or less after midnight. Waves 2 to 4 feet
subsiding to 1 to 2 feet.
.SUNDAY...Northeast winds 5 to 15 knots becoming east. Waves 1 to
3 feet.
.SUNDAY NIGHT...East winds 5 to 15 knots. A chance of snow
showers in the evening, then a chance of snow and rain showers
overnight. Waves 1 to 3 feet.
.MONDAY...Southeast winds 5 to 10 knots becoming southwest. A
chance of rain and snow showers in the morning, then a chance of
rain showers in the afternoon. Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 10 to 15 knots increasing to
15 to 25 knots. A chance of rain showers. Waves 1 to 3 feet
building to 3 to 6 feet.
.TUESDAY...Southwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. A chance of rain showers during
the day, then a chance of rain and snow showers Tuesday night.
Waves 5 to 8 feet. Waves occasionally around 10 feet.
.WEDNESDAY...West winds 15 to 20 knots becoming north 5 to
15 knots. A chance of snow showers during the day. Waves 3 to
6 feet subsiding to 1 to 3 feet.
.THURSDAY...Northeast winds 5 to 15 knots becoming southeast. A
chance of snow showers Thursday night. Waves 1 to 3 feet building
to 2 to 4 feet, then subsiding to 1 to 3 feet.

$$

LOZ063>065-170415-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
339 PM EST Sat Dec 16 2017

.TONIGHT...Northwest winds 15 to 20 knots becoming northeast and
diminishing to 5 to 10 knots. Waves 3 to 5 feet subsiding to 1 to
3 feet.
.SUNDAY...Northeast winds 5 to 10 knots becoming east. Waves
2 feet or less.
.SUNDAY NIGHT...East winds 5 to 15 knots. A chance of snow
showers. Waves 2 feet or less.
.MONDAY...East winds 10 knots or less becoming southwest. A
chance of rain and snow showers in the morning, then a chance of
rain showers in the afternoon. Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 10 to 15 knots increasing to
15 to 25 knots. Rain showers likely. Waves 1 to 3 feet building
to 3 to 5 feet.
.TUESDAY...Southwest winds to 30 knots becoming west. Rain
showers likely during the day, then lake effect rain and snow
showers likely Tuesday night. Waves 5 to 9 feet. Waves
occasionally around 11 feet.
.WEDNESDAY...West winds 15 to 25 knots becoming north and
diminishing to 10 to 15 knots. Lake effect snow showers likely
during the day, then a chance of snow showers Wednesday night.
Waves 4 to 7 feet subsiding to 2 to 4 feet. Waves occasionally
around 9 feet.
.THURSDAY...Northeast winds 10 to 15 knots becoming southeast. A
chance of snow showers Thursday night. Waves 1 to 3 feet building
to 3 to 5 feet.

$$

LOZ061-170415-
MAFOR 1622/
ONTARIO WEST 1/2 11720 12800 12100 12200 11210. Waves 2 to 4 feet
subsiding to 1 to 3 feet tonight. Waves 1 to 3 feet Sunday.

ONTARIO EAST 1/2 11720 12800 12100 13200. Waves 3 to 5 feet
subsiding to 1 to 3 feet tonight. Waves 2 feet or less Sunday.

$$



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