Great Lakes Forecast
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000
FZUS61 KBUF 180200
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
900 PM EST Fri Nov 17 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 30.1 inch high is centered just to the east of the
lake this late evening and will move east across New England
later tonight, while a broad 29.4 inch low becomes organized over
the central plains. The low will deepen to 29.1 inches on
Saturday while advancing across the Mid West to Lake Erie. The
storm will then track across the lake Saturday night while further
deepening to 28.9 inches. As the deep storm exits across the
Saint lawrence Valley on Sunday, expansive high pressure will
build across the Lower Mississippi Valley. The large high will
cross the southern states on Monday.

LOZ062-181015-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
900 PM EST Fri Nov 17 2017

...GALE WARNING IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY
EVENING...

.OVERNIGHT...South winds 5 to 15 knots becoming southeast.
Rain likely late. Waves 1 to 3 feet.
.SATURDAY...Southeast winds 10 to 15 knots becoming south. Rain
in the morning, then a chance of rain early in the afternoon.
Rain late. Waves 1 to 2 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet.
.SATURDAY NIGHT...South winds 10 to 15 knots becoming northwest
and increasing to 40 knot gales overnight. Rain. Waves 1 to
3 feet building to 7 to 10 feet. Waves occasionally around
13 feet.
.SUNDAY...Northwest gales to 40 knots diminishing to 35 knots. A
chance of snow and rain in the morning, then lake effect snow
likely in the afternoon. Waves 10 to 15 feet subsiding to 9 to
12 feet. Waves occasionally around 19 feet.
.SUNDAY NIGHT...Northwest winds to 30 knots becoming west. Lake
effect snow likely. Waves 9 to 12 feet subsiding to 4 to 7 feet.
Waves occasionally around 15 feet.
.MONDAY...West winds 15 to 25 knots becoming southwest. A chance
of rain and snow during the day. Waves 3 to 6 feet.
.TUESDAY...Southwest winds to 30 knots becoming west. A chance of
rain showers Tuesday night. Waves 5 to 8 feet. Waves occasionally
around 10 feet.
.WEDNESDAY...West winds 15 to 20 knots diminishing to 10 to
15 knots. Waves 3 to 6 feet subsiding to 1 to 3 feet.

$$

LOZ063>065-181015-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
900 PM EST Fri Nov 17 2017

...GALE WARNING IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY
EVENING...

.OVERNIGHT...South winds 5 to 15 knots becoming southeast
15 to 20 knots. Waves 1 to 3 feet building to 2 to 4 feet.
.SATURDAY...South winds 15 to 25 knots. Rain. Waves 2 to 4 feet
building to 3 to 5 feet.
.SATURDAY NIGHT...South winds 15 to 25 knots becoming west and
increasing to 40 knot gales overnight. Rain. Waves 3 to 5 feet
building to 5 to 8 feet. Waves occasionally around 10 feet.
.SUNDAY...Northwest gales to 40 knots diminishing to 35 knots.
Snow and rain in the morning, then lake effect snow in the
afternoon. Waves 11 to 16 feet. Waves occasionally around
20 feet.
.SUNDAY NIGHT...Northwest gales to 35 knots diminishing to 15 to
25 knots. Lake effect snow. Waves 10 to 14 feet subsiding to 6 to
9 feet. Waves occasionally around 18 feet.
.MONDAY...Northwest winds 15 to 25 knots becoming southwest. Lake
effect snow with lake effect rain likely during the day, then a
chance of rain Monday night. Waves 4 to 7 feet subsiding to 3 to
6 feet. Waves occasionally around 9 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west to
30 knots. A chance of rain showers Tuesday night. Waves 5 to
8 feet building to 5 to 9 feet. Waves occasionally around
11 feet.
.WEDNESDAY...West winds 15 to 20 knots becoming northwest 10 to
15 knots. A chance of snow showers. Waves 4 to 7 feet subsiding
to 2 to 4 feet. Waves occasionally around 9 feet.

$$

LOZ061-181015-
MAFOR 1804/
ONTARIO WEST 1/2 12310 11316 11436 11426 11410 12416. A chance of
rain overnight. Waves 1 to 3 feet overnight. Waves 1 to 3 feet
building to 3 to 5 feet, then subsiding to 1 to 3 feet Saturday.
Waves 1 to 3 feet Saturday evening.

ONTARIO EAST 1/2 11310 11320 11426 11336 11436 11420 11426 11436.
Waves 1 to 3 feet building to 2 to 4 feet overnight. Waves 2 to 4
feet building to 3 to 5 feet Saturday. Waves 3 to 6 feet Saturday
evening.

$$


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