Great Lakes Forecast
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000
FZUS61 KBUF 150518
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
118 AM EDT Sun Oct 15 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 low organizing over the Midwest will move across
Lake Huron Sunday morning and then reach southern Quebec by
Sunday afternoon while deepening to 29.3 inches. A strong cold
front trailing this low will cross the lake late Sunday afternoon
and early Sunday evening. This low will then continue into the
Canadian Maritimes by Monday morning. A 30.4 inch high over the
southern Plains Monday will build into the Ohio Valley and Mid
Atlantic Tuesday and Wednesday.

LOZ062-150930-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
118 AM EDT Sun Oct 15 2017

...GALE WARNING IN EFFECT FROM THIS AFTERNOON THROUGH LATE
TONIGHT...

.OVERNIGHT...East winds 10 to 15 knots becoming southeast.
A chance of showers. Waves 1 to 3 feet.
.SUNDAY...South winds 15 to 25 knots becoming southwest to
35 knot gales late. Showers with a chance of thunderstorms late.
Some thunderstorms may produce gusty winds late. Waves 1 to 3 feet
building to 3 to 6 feet.
.SUNDAY NIGHT...Southwest gales to 40 knots becoming northwest
and diminishing to 30 knots overnight. Showers with a chance of
thunderstorms in the evening, then a chance of showers overnight.
Some thunderstorms may produce gusty winds in the evening. Waves
8 to 11 feet building to 10 to 15 feet, then subsiding to 9 to
12 feet. Waves occasionally around 19 feet.
.MONDAY...Northwest winds 15 to 25 knots. A chance of showers in
the morning. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves
occasionally around 9 feet.
.MONDAY NIGHT...Northwest winds 15 to 20 knots becoming southwest
10 to 15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west. Waves
2 to 4 feet building to 5 to 8 feet, then subsiding to 3 to
5 feet. Waves occasionally around 10 feet.
.WEDNESDAY...West winds 10 to 15 knots becoming southwest. Waves
2 to 3 feet.
.THURSDAY...Southwest winds 10 to 15 knots becoming west. Waves
1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-150930-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
118 AM EDT Sun Oct 15 2017

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.OVERNIGHT...Southeast winds 5 to 10 knots increasing to
15 to 20 knots. A chance of showers. Waves 1 to 3 feet.
.SUNDAY...South winds 15 to 25 knots becoming southwest. Showers
with a chance of thunderstorms late. Some thunderstorms may
produce gusty winds late. Waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 2 to 4 feet.
.SUNDAY NIGHT...Southwest gales to 40 knots becoming west to
35 knots. Showers with a chance of thunderstorms in the evening,
then a chance of showers overnight. Some thunderstorms may
produce gusty winds in the evening. Waves 7 to 10 feet building
to 11 to 16 feet. Waves occasionally around 20 feet.
.MONDAY...Northwest winds to 30 knots diminishing to 15 to
25 knots. A chance of showers. Waves 9 to 12 feet subsiding to
3 to 5 feet. Waves occasionally around 15 feet.
.MONDAY NIGHT...Northwest winds 15 to 20 knots becoming west
10 to 15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west. Waves
2 to 4 feet building to 5 to 8 feet. Waves occasionally around
10 feet.
.WEDNESDAY...West winds 5 to 15 knots becoming southwest. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.THURSDAY...Southwest winds 15 to 20 knots becoming west 5 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-150930-
MAFOR 1503/
ONTARIO WEST 1/2...GALE WARNING IN EFFECT...11216 11210 12420
11530 11546 11556 11660. A chance of thunderstorms Sunday
afternoon and Sunday evening. Waves 1 to 3 feet overnight. Waves
1 to 3 feet building to 3 to 6 feet Sunday. Waves 8 to 11 feet
building to 11 to 15 feet, and occasionally around 19 feet Sunday
evening.

ONTARIO EAST 1/2...GALE WARNING IN EFFECT...11300 11310 13430
11420 11556 11656. A chance of showers overnight. A chance of
thunderstorms Sunday afternoon and Sunday evening. Waves 1 to 3
feet overnight. Waves 2 to 4 feet Sunday. Waves 7 to 10 feet
building to 11 to 15 feet, and occasionally around 19 feet Sunday
evening.

$$

HITCHCOCK



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