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 241041
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
641 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.

LOZ062-241500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
641 AM EDT Mon Jul 24 2017

.TODAY...North winds 10 knots or less becoming west 10 to
15 knots. A chance of showers and thunderstorms. Waves 1 to
3 feet subsiding to 1 foot or less.
.TONIGHT...Northwest winds 10 to 15 knots becoming north 15 to
20 knots. A chance of showers. 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>065-241500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
641 AM EDT Mon Jul 24 2017

.TODAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots. Showers with a chance of thunderstorms this morning...
then showers and thunderstorms likely this afternoon. Some
thunderstorms may produce gusty winds this afternoon. 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.

$$

LOZ061-241500-
MAFOR 2412 AMD/
ONTARIO WEST 1/2 11600 11609 11619 11610 11710 11810 11820. A
chance of showers and thunderstorms through mid morning. A chance
of showers and thunderstorms in the evening...then a chance of
showers overnight. Waves 2 feet or less today. Waves 1 to 3 feet
building to 2 to 4 feet tonight.

ONTARIO EAST 1/2 11420 11529 12519 12410 11120. A chance of
showers and thunderstorms through mid morning. A chance of
showers overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet
today. Waves 1 to 3 feet building to 2 to 4 feet tonight.

$$

JJR/TMA



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