Great Lakes Forecast
Issued by NWS

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000
FZUS61 KBUF 230215
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1015 PM EDT Tue Aug 22 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 29.5 inch low over southwestern Quebec will move east
across Quebec tonight and Wednesday while deepening to 29.2 inches.
A strong cold front trailing this low will cross the lake this
evening. The low will weaken and exit across Labrador on Thursday. A
30.2 inch high will then build from near Lake Superior Thursday to
the Central Great Lakes Friday and the eastern Great Lakes Saturday.

LOZ062-230915-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1015 PM EDT Tue Aug 22 2017

.REST OF TONIGHT...West winds 15 to 25 knots. Showers likely late
this evening. Waves 3 to 6 feet.
.WEDNESDAY...West winds 15 to 25 knots. A chance of showers in
the afternoon. Waves 3 to 6 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 20 knots diminishing to
around 10 knots. A chance of showers in the evening. A chance of
waterspouts. Waves 2 to 4 feet.
.THURSDAY...Northwest winds 5 to 10 knots. A chance of showers in
the morning. A chance of waterspouts. Waves 1 to 3 feet.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots becoming
northeast. Waves 1 to 2 feet.
.FRIDAY...North winds 10 to 15 knots becoming northwest 10 knots
or less. Waves 2 feet or less.
.SATURDAY...Northwest winds 5 to 10 knots becoming north. Waves
1 to 2 feet.
.SUNDAY...Northeast winds 5 to 10 knots becoming east. Waves 1 to
2 feet.

$$

LOZ063>065-230915-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1015 PM EDT Tue Aug 22 2017

.REST OF TONIGHT...West winds 15 to 25 knots. Showers likely late
this evening...then a chance of showers after midnight. Waves
3 to 6 feet building to 4 to 7 feet. Waves occasionally around
9 feet.
.WEDNESDAY...West winds 15 to 25 knots. A chance of showers late.
Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves occasionally
around 9 feet.
.WEDNESDAY NIGHT...West winds 15 to 20 knots becoming northwest
10 to 15 knots. A chance of showers in the evening. A chance of
waterspouts. Waves 3 to 5 feet subsiding to 2 to 4 feet.
.THURSDAY...North winds 5 to 10 knots becoming northwest. A
chance of showers in the morning. A chance of waterspouts. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.THURSDAY NIGHT...Northwest winds 5 to 15 knots becoming
northeast. Waves 2 feet or less.
.FRIDAY...North winds 5 to 15 knots becoming northwest. Waves
1 to 3 feet.
.SATURDAY...Northwest winds 10 knots or less. Waves 2 feet or
less.
.SUNDAY...Northeast winds 5 to 10 knots becoming east. Waves
2 feet or less.

$$

LOZ061-230915-
MAFOR 2303/
ONTARIO WEST 1/2 13630 13620 11720 11710. A chance of waterspouts
Wednesday evening. A chance of showers late this evening and
Wednesday afternoon. Waves 3 to 6 feet building to 4 to 7 feet...
and occasionally around 9 feet overnight. Waves 4 to 7 feet
subsiding to 3 to 6 feet...and occasionally around 9 feet
Wednesday. Waves 3 to 5 feet Wednesday evening.

ONTARIO EAST 1/2 11636 12630 14620 11620. A chance of waterspouts
Wednesday evening. A chance of showers overnight...Wednesday
afternoon...and Wednesday evening. Waves 3 to 6 feet building to
4 to 7 feet...and occasionally around 9 feet overnight. Waves 4
to 7 feet subsiding to 3 to 6 feet...and occasionally around 9
feet Wednesday. Waves 3 to 5 feet Wednesday evening.

$$


WOOD


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