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 241435
GLFLO

GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1030 AM EDT Mon Jul 24 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 29.7 inch low will remain stalled out across Lake
Ontario today...before slowly drifting off to the east tonight and
Tuesday. Meanwhile...a 30.2 inch high will ridge from Hudson Bay
to the Upper Great Lakes today...before extending across the
Lower Great Lakes Tuesday. This high will then drift to the New
England coastline Wednesday...with a cold front expected to cross
the Lower Lakes region on Thursday.

LOZ062-242100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1030 AM EDT Mon Jul 24 2017

.REST OF TODAY...Northwest winds 5 to 15 knots becoming west. A
chance of showers and thunderstorms this afternoon. Waves 1 foot
or less.
.TONIGHT...Northwest winds 10 to 15 knots becoming north 15 to
20 knots. A chance of showers and thunderstorms early...then a
chance of showers from late evening on. Waves 1 to 3 feet
building to 2 to 4 feet.
.TUESDAY...North winds 15 to 20 knots becoming northeast and
diminishing to 5 to 10 knots. A chance of showers in the morning.
Waves 3 to 5 feet subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Northwest winds less than 10 knots becoming
southwest. Waves 1 to 3 feet subsiding to 1 foot or less.
.WEDNESDAY...Southwest winds 5 to 15 knots becoming south. A
chance of showers Wednesday night. Waves 2 feet or less.
.THURSDAY...Southwest winds 5 to 15 knots becoming north. Showers
and thunderstorms likely during the day...then a chance of
showers Thursday night. Waves 2 feet or less.
.FRIDAY...Northeast winds 5 to 15 knots diminishing to 10 knots
or less. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-242100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1030 AM EDT Mon Jul 24 2017

.REST OF TODAY...Southeast winds 15 to 20 knots becoming west
10 to 15 knots. Showers with a chance of thunderstorms late this
morning...then showers and thunderstorms likely this afternoon.
Some thunderstorms may produce gusty winds. Waves 2 to 4 feet
subsiding to 1 to 3 feet.
.TONIGHT...Southwest winds 10 to 15 knots becoming northeast
15 to 20 knots. Showers and thunderstorms likely early...then a
chance of showers and thunderstorms late in the evening. A chance
of showers after midnight. Some thunderstorms may produce gusty
winds early. Waves 1 to 3 feet building to 2 to 4 feet.
.TUESDAY...Northeast winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers in the morning. Waves 3 to 5 feet
subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots becoming south.
Waves 1 to 3 feet.
.WEDNESDAY...South winds 5 to 15 knots increasing to 15 to
20 knots. A chance of showers Wednesday night. Waves 1 foot or
less building to 2 to 4 feet.
.THURSDAY...Southwest winds 5 to 15 knots becoming north. Showers
and thunderstorms likely. Waves 2 to 4 feet subsiding to 2 feet
or less.
.FRIDAY...Northeast winds 5 to 15 knots. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-242100-
MAFOR 2415/
ONTARIO WEST 1/2 11600 11610 12710 11810 13820. A chance of
showers and thunderstorms this afternoon. A chance of showers and
thunderstorms in the evening...then a chance of showers
overnight. Waves 1 foot or less this afternoon. Waves 1 to 3 feet
building to 2 to 4 feet tonight. Waves 3 to 5 feet Tuesday
morning.

ONTARIO EAST 1/2 11510 12519 11410 11310 11110 12120. A chance of
thunderstorms late this morning. A chance of showers overnight
and Tuesday morning. Waves 2 to 4 feet subsiding to 1 to 3 feet
this afternoon. Waves 1 to 3 feet building to 2 to 4 feet
tonight. Waves 3 to 5 feet Tuesday morning.

$$



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