Great Lakes Forecast
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000
FZUS61 KBUF 172040
GLFLO

GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
430 PM EDT Sat Jun 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...Weak high pressure averaging 29.8 inches will remain
across Lake Ontario through this evening. A 29.4 inch low will
then organize over the upper Great Lakes tonight. This low will
move to western Quebec by Monday, dragging a cold front across
the lake Sunday night. A 30.1 inch high will build across the Ohio
Valley late Monday through Tuesday before building northward into
the Lower Great Lakes and New England Wednesday.

LOZ062-180300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
430 PM EDT Sat Jun 17 2017

.TONIGHT...East winds 5 to 15 knots becoming south. Scattered
showers and thunderstorms from late evening on. Waves 1 foot or
less.
.SUNDAY...South winds 10 to 15 knots becoming southwest 15 to
20 knots. A chance of showers and thunderstorms late. Waves 1 to
2 feet.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots increasing to
15 to 20 knots. Showers likely with thunderstorms. Some
thunderstorms may produce gusty winds in the evening. Waves 1 to
3 feet.
.MONDAY...Southwest winds 5 to 15 knots. A chance of showers in
the afternoon. Waves 1 to 3 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots. A chance of
showers. Waves 1 to 2 feet.
.TUESDAY...West winds 15 to 20 knots diminishing to 5 to
10 knots. A chance of showers and thunderstorms. Waves 1 to
3 feet.
.WEDNESDAY...West winds 5 to 10 knots. A chance of showers and
thunderstorms during the day...then a chance of showers Wednesday
night. Waves 1 to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots. A chance of showers
Thursday night. Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-180300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
430 PM EDT Sat Jun 17 2017

.TONIGHT...South winds 5 to 15 knots increasing to 15 to
20 knots. Isolated showers and thunderstorms this evening...then
scattered showers and thunderstorms after midnight. Waves 1 to
3 feet.
.SUNDAY...South winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers and thunderstorms late. Waves 1 to
3 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Showers and
thunderstorms. Some thunderstorms may produce gusty winds. Waves
1 to 3 feet.
.MONDAY...Southwest winds 5 to 15 knots becoming west. Showers
and thunderstorms likely in the morning...then a chance of
showers in the afternoon. Waves 1 to 3 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots. A chance of
showers. Waves 1 to 3 feet.
.TUESDAY...Southwest winds 15 to 20 knots diminishing to 5 to
15 knots. A chance of showers. Waves 2 to 4 feet subsiding to
1 to 3 feet.
.WEDNESDAY...West winds 5 to 15 knots. A chance of showers and
thunderstorms during the day...then a chance of showers Wednesday
night. Waves 1 to 2 feet.
.THURSDAY...Southwest winds 5 to 10 knots. A chance of showers
Thursday night. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-180200-
MAFOR 1721/
ONTARIO WEST 1/2 11300 11400 14410 12520. Scattered showers and
thunderstorms tonight. A chance of showers and thunderstorms
Sunday afternoon. Waves 2 feet or less.

ONTARIO EAST 1/2 11400 11410 13420 13410. A chance of showers and
thunderstorms Sunday afternoon. Waves 1 to 3 feet.

$$



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