Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | 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 142343
GLFLO

GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
730 PM EDT Sat Oct 14 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 low organizing over the Midwest will move across
Lake Huron Sunday morning and then reach southern Quebec by
Sunday afternoon while deepening to 29.3 inches. A strong cold
front trailing this low will cross the lake late Sunday afternoon
and early Sunday evening. This low will then continue into the
Canadian Maritimes by Monday morning. A 30.4 inch high over the
southern Plains Monday will build into the Ohio Valley and Mid
Atlantic Tuesday and Wednesday.

LOZ062-150300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
730 PM EDT Sat Oct 14 2017

...GALE WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...

.TONIGHT...East winds 5 to 15 knots becoming southeast 15 to
20 knots. A chance of showers early, then showers likely. A
chance of showers late. Waves 1 to 3 feet.
.SUNDAY...South winds 15 to 25 knots becoming southwest to
30 knots. Showers with a chance of thunderstorms late. Some
thunderstorms may produce gusty winds late. Waves 1 to 3 feet
building to 3 to 6 feet.
.SUNDAY NIGHT...Southwest gales to 40 knots becoming northwest
and diminishing to 30 knots overnight. Showers with a chance of
thunderstorms in the evening, then a chance of showers overnight.
Some thunderstorms may produce gusty winds in the evening. Waves
8 to 11 feet building to 10 to 15 feet, then subsiding to 9 to
12 feet. Waves occasionally around 19 feet.
.MONDAY...Northwest winds 15 to 25 knots. A chance of showers in
the morning. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves
occasionally around 9 feet.
.MONDAY NIGHT...Northwest winds 15 to 20 knots becoming southwest
10 to 15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west. Waves
2 to 4 feet building to 5 to 8 feet, then subsiding to 3 to
5 feet. Waves occasionally around 10 feet.
.WEDNESDAY...West winds 10 to 15 knots becoming southwest. Waves
2 to 3 feet.
.THURSDAY...Southwest winds 10 to 15 knots becoming west. Waves
1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-150300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
730 PM EDT Sat Oct 14 2017

...GALE WARNING IN EFFECT FROM SUNDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.TONIGHT...East winds 5 to 15 knots becoming south 15 to
20 knots. A chance of showers. Waves 1 to 3 feet.
.SUNDAY...South winds 15 to 25 knots becoming southwest. Showers
with a chance of thunderstorms late. Some thunderstorms may
produce gusty winds late. Waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 2 to 4 feet.
.SUNDAY NIGHT...Southwest gales to 40 knots becoming west to
35 knots. Showers with a chance of thunderstorms in the evening,
then a chance of showers overnight. Some thunderstorms may
produce gusty winds in the evening. Waves 7 to 10 feet building
to 11 to 16 feet. Waves occasionally around 20 feet.
.MONDAY...Northwest winds to 30 knots diminishing to 15 to
25 knots. A chance of showers. Waves 9 to 12 feet subsiding to
3 to 5 feet. Waves occasionally around 15 feet.
.MONDAY NIGHT...Northwest winds 15 to 20 knots becoming west
10 to 15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west. Waves
2 to 4 feet building to 5 to 8 feet. Waves occasionally around
10 feet.
.WEDNESDAY...West winds 5 to 15 knots becoming southwest. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.THURSDAY...Southwest winds 15 to 20 knots becoming west 5 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-150300-
MAFOR 1500 AMD/
ONTARIO WEST 1/2...GALE WARNING IN EFFECT...12210 11310 12420
11530 11546. A chance of showers tonight. A chance of
thunderstorms Sunday afternoon. Waves 1 to 3 feet tonight. Waves
1 to 3 feet building to 3 to 5 feet Sunday.

ONTARIO EAST 1/2 11200 11210 11320 13430 11420. A chance of
showers through early evening. Waves 1 to 3 feet tonight. Waves 2
to 4 feet Sunday.

$$



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