Great Lakes Forecast
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000
FZUS61 KBUF 151738
GLFLO

GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1230 PM EST Wed Nov 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 30.3 inch high draped from Quebec southeastward
across the Appalachians will drift eastward today. A 29.6 inch
low near the Michigan Straits this evening will then push its
trailing cold front across the lake tonight. A secondary cold
front will cross the lake on Thursday as an expansive 30.4 high
builds across the Upper Great Lakes. This high will then build
across the lake Thursday night and Friday...before a deepening
storm tracks just to the west of the lake during the weekend.

LOZ062-152200-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1230 PM EST Wed Nov 15 2017

.THIS AFTERNOON...Southeast winds 10 to 15 knots. Waves 1 to
3 feet.
.TONIGHT...South winds 15 to 25 knots becoming southwest. A
chance of showers early, then showers. Waves 1 to 3 feet building
to 3 to 6 feet.
.THURSDAY...West winds to 30 knots. A chance of showers. Waves
5 to 8 feet building to 7 to 10 feet. Waves occasionally around
13 feet.
.THURSDAY NIGHT...Northwest gales to 35 knots diminishing to
15 to 25 knots. A chance of rain and snow showers in the evening.
Waves 7 to 10 feet subsiding to 3 to 6 feet. Waves occasionally
around 13 feet.
.FRIDAY...Northwest winds 5 to 15 knots becoming south 15 to
20 knots. Rain Friday night. Waves 2 to 4 feet subsiding to 1 to
3 feet.
.SATURDAY...South winds 15 to 25 knots becoming west and
increasing to 35 knot gales. Rain during the day, then rain
showers Saturday night. Waves 2 to 4 feet building to 8 to
12 feet. Waves occasionally around 15 feet.
.SUNDAY...Northwest winds to 30 knots diminishing to 15 to
25 knots. Lake effect rain showers likely during the day, then
lake effect snow showers likely Sunday night. Waves 8 to 11 feet
subsiding to 5 to 8 feet. Waves occasionally around 14 feet.

$$

LOZ063>065-152200-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1230 PM EST Wed Nov 15 2017

.THIS AFTERNOON...Southeast winds 15 to 20 knots. Waves 1 to
3 feet building to 2 to 4 feet.
.TONIGHT...South winds 15 to 25 knots increasing to 30 knots.
Showers. A chance of showers late. Waves 3 to 6 feet building to
6 to 9 feet. Waves occasionally around 11 feet.
.THURSDAY...Southwest winds 15 to 25 knots becoming west to
30 knots. Showers. Waves 5 to 8 feet building to 7 to 11 feet.
Waves occasionally around 14 feet.
.THURSDAY NIGHT...Northwest gales to 35 knots diminishing to
15 to 20 knots. Rain showers likely in the evening, then a chance
of rain and snow showers overnight. Waves 9 to 12 feet subsiding
to 4 to 7 feet. Waves occasionally around 15 feet.
.FRIDAY...Northwest winds 15 to 20 knots becoming south. Rain
Friday night. Waves 3 to 6 feet subsiding to 2 to 4 feet.
.SATURDAY...South winds 15 to 25 knots becoming west and
increasing to 35 knot gales. Rain during the day, then rain
showers Saturday night. Waves 3 to 6 feet building to 10 to
14 feet. Waves occasionally around 18 feet.
.SUNDAY...West winds to 30 knots becoming northwest 15 to
25 knots. Lake effect rain showers likely during the day, then
lake effect snow showers likely Sunday night. Waves 10 to 13 feet
subsiding to 5 to 8 feet. Waves occasionally around 16 feet.

$$

LOZ061-152200-
MAFOR 1519 AMD/
ONTARIO WEST 1/2 12320 12436 12530 11630. A chance of showers
overnight. Waves 1 to 3 feet building to 2 to 4 feet this
afternoon. Waves 2 to 4 feet building to 3 to 6 feet tonight.
Waves 4 to 7 feet, and occasionally around 9 feet Thursday
morning.

ONTARIO EAST 1/2 11320 11330 11440 11446 11440 12530. A chance of
showers this evening and Thursday morning. Waves 1 to 3 feet
building to 2 to 4 feet this afternoon. Waves 3 to 6 feet
building to 6 to 9 feet, and occasionally around 11 feet tonight.
Waves 5 to 8 feet, and occasionally around 10 feet Thursday
morning.

$$



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