Great Lakes Forecast
Issued by NWS

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FZUS61 KBUF 131856
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
256 PM EDT Wed Jun 13 2018

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 deepening 29.6 inch low will track across southern Canada this
afternoon and evening, which will drive a cold front across the
lake this evening. A 30.0 inch high over the Upper Mississippi
Valley Wednesday evening will then build east across all of the
Great Lakes and Ohio Valley Thursday and Thursday night. The
center of the surface high will cross the lower lake on Friday.

LOZ062-140315-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
256 PM EDT Wed Jun 13 2018

.TONIGHT...Southwest winds 10 to 15 knots becoming west and
increasing to 30 knots this evening. A chance of showers with
isolated thunderstorms early this afternoon, then showers likely
with a chance of thunderstorms early. Some thunderstorms may
produce gusty winds early. Waves 1 to 2 feet building to 6 to
10 feet. Waves occasionally around 13 feet.
.THURSDAY...West winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. Waves 5 to 9 feet subsiding to
3 to 6 feet. Waves occasionally around 11 feet.
.THURSDAY NIGHT...Northwest winds 15 to 20 knots becoming west
and diminishing to less than 10 knots overnight. Waves 2 to
4 feet subsiding to 1 to 3 feet.
.FRIDAY...West winds 10 knots or less. Waves 1 foot or less.
.FRIDAY NIGHT...West winds 5 to 10 knots. Waves 1 foot or less.
.SATURDAY...West winds 10 knots or less becoming southwest. A
chance of showers and thunderstorms Saturday night. Waves 1 foot
or less.
.SUNDAY...Southwest winds 10 to 15 knots. A chance of showers and
thunderstorms. Waves 2 feet or less.
.MONDAY...West winds 5 to 15 knots becoming north. A chance of
showers and thunderstorms. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-140315-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
256 PM EDT Wed Jun 13 2018

.TONIGHT...Southwest winds 5 to 15 knots becoming west and
increasing to 30 knots this evening. A chance of showers early
this afternoon, then showers likely with a chance of
thunderstorms early. Some thunderstorms may be severe with gusty
winds and strong winds early. Waves 1 to 2 feet building to 8 to
11 feet. Waves occasionally around 14 feet.
.THURSDAY...West winds to 30 knots becoming northwest 15 to
25 knots. Waves 7 to 11 feet subsiding to 3 to 6 feet. Waves
occasionally around 14 feet.
.THURSDAY NIGHT...Northwest winds 15 to 20 knots becoming west
and diminishing to 10 knots or less overnight. Waves 3 to 5 feet
subsiding to 1 to 3 feet.
.FRIDAY...West winds 5 to 10 knots. Waves 2 feet or less.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves 2 feet or
less.
.SATURDAY...West winds 10 knots or less becoming southwest. A
chance of showers and thunderstorms Saturday night. Waves 1 foot
or less.
.SUNDAY...Southwest winds 5 to 15 knots. A chance of showers and
thunderstorms. Waves 2 feet or less.
.MONDAY...West winds 5 to 15 knots becoming north. A chance of
showers and thunderstorms. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-140315-
MAFOR 1321/
ONTARIO WEST 1/2 11636 14640 11630 11730 11720. A chance of
thunderstorms this evening. Waves 3 to 5 feet building to 7 to 11
feet, and occasionally around 14 feet tonight. Waves 6 to 10 feet
subsiding to 3 to 5 feet, and occasionally around 13 feet
Thursday.

ONTARIO EAST 1/2 11536 11636 13640 12630 11620. A chance of
thunderstorms this evening. Waves 1 to 3 feet building to 8 to 11
feet, and occasionally around 14 feet tonight. Waves 7 to 11 feet
subsiding to 3 to 6 feet, and occasionally around 14 feet
Thursday.

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.