Great Lakes Forecast
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000
FZUS61 KBUF 250538
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
138 AM EDT Tue Jul 25 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 29.7 inch low near Watertown will slowly drift off
to the east through Tuesday...while a 30.2 inch high over the
Upper Great Lakes builds across the Lower Great Lakes. This high
will then drift to the New England coastline Wednesday...with a
cold front expected to cross the Lower Lakes region on Thursday.

LOZ062-250900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
138 AM EDT Tue Jul 25 2017

.OVERNIGHT...North winds 15 to 20 knots. A chance of
drizzle. Waves 2 to 4 feet building to 3 to 5 feet.
.TUESDAY...North winds 15 to 20 knots becoming east 5 to
15 knots. Waves 3 to 5 feet subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Southeast winds 10 knots or less becoming south.
Waves 1 to 3 feet subsiding to 1 foot or less.
.WEDNESDAY...South winds 5 to 10 knots becoming west. Waves
1 foot or less.
.WEDNESDAY NIGHT...South winds 5 to 15 knots becoming southwest
15 to 20 knots. A chance of showers overnight. Waves 2 feet or
less.
.THURSDAY...West winds 15 to 25 knots becoming north. Showers and
thunderstorms likely. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.FRIDAY...North winds 5 to 15 knots becoming northeast. A chance
of showers during the day. Waves 1 to 3 feet.
.SATURDAY...Northeast winds 10 knots or less becoming north.
Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-250900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
138 AM EDT Tue Jul 25 2017

.OVERNIGHT...Northwest winds 15 to 20 knots becoming north.
A chance of drizzle or light rain. Waves 2 to 4 feet building to
3 to 5 feet.
.TUESDAY...North winds 15 to 25 knots becoming northeast and
diminishing to 10 to 15 knots. A chance of drizzle and light rain
early...then a chance of drizzle. Waves 3 to 6 feet.
.TUESDAY NIGHT...Northeast winds 10 knots or less becoming south.
Waves 2 to 4 feet subsiding to 2 feet or less.
.WEDNESDAY...South winds 5 to 10 knots. Waves 1 foot or less.
.WEDNESDAY NIGHT...Southeast winds 5 to 15 knots becoming
southwest. A chance of showers overnight. Waves 1 to 3 feet.
.THURSDAY...Southwest winds 15 to 25 knots becoming north.
Showers and thunderstorms likely. Waves 3 to 6 feet subsiding to
1 to 3 feet.
.FRIDAY...North winds 15 to 20 knots diminishing to 5 to
15 knots. A chance of showers during the day. Waves 1 to 3 feet.
.SATURDAY...Northeast winds 10 knots or less becoming north.
Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-250900-
MAFOR 2506 AMD/
ONTARIO WEST 1/2 13820 11120 11110 11200 11300. A chance of
drizzle overnight. Waves 2 to 4 feet building to 3 to 5 feet
overnight. Waves 3 to 6 feet Tuesday. Waves 1 to 3 feet Tuesday
evening.

ONTARIO EAST 1/2 12820 11830 12120 12100. A chance of drizzle or
light rain overnight and Tuesday morning...then a chance of
drizzle Tuesday afternoon. Waves 2 to 4 feet building to 3 to 5
feet overnight. Waves 3 to 6 feet Tuesday. Waves 2 to 4 feet
subsiding to 2 feet or less Tuesday evening.

$$

JJR



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