Great Lakes Forecast
Issued by NWS

Home | 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
498
FZUS61 KBUF 250244
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1030 PM 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 slowly drift 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.

LOZ062-250900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1030 PM EDT Mon Jul 24 2017

.REST OF TONIGHT...North winds 15 to 20 knots. Waves 3 to 5 feet.
.TUESDAY...North winds 15 to 20 knots becoming northeast and
diminishing to 5 to 10 knots. Waves 3 to 5 feet subsiding to 2 to
4 feet.
.TUESDAY NIGHT...East winds 10 knots or less becoming south.
Waves 1 to 3 feet subsiding to 1 foot or less.
.WEDNESDAY...South winds 5 to 10 knots becoming west. Waves
1 foot or less.
.WEDNESDAY NIGHT...South winds 5 to 15 knots becoming southwest
15 to 20 knots. A chance of showers overnight. Waves 2 feet or
less.
.THURSDAY...West winds 15 to 25 knots becoming north. Showers and
thunderstorms likely. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.FRIDAY...North winds 5 to 15 knots becoming northeast. A chance
of showers during the day. Waves 1 to 3 feet.
.SATURDAY...Northeast winds 10 knots or less becoming north.
Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-250900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1030 PM EDT Mon Jul 24 2017

.REST OF TONIGHT...North winds 15 to 20 knots. A chance of
showers late this evening...then a chance of showers and drizzle
after midnight. Waves 2 to 4 feet building to 3 to 5 feet.
.TUESDAY...North winds 15 to 25 knots becoming northeast and
diminishing to 10 to 15 knots. A chance of drizzle and showers
early...then a chance of drizzle late in the morning. Waves 3 to
6 feet.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots becoming south.
Waves 2 to 4 feet subsiding to 2 feet or less.
.WEDNESDAY...South winds 5 to 10 knots. Waves 1 foot or less.
.WEDNESDAY NIGHT...Southeast winds 5 to 15 knots becoming
southwest. A chance of showers overnight. Waves 1 to 3 feet.
.THURSDAY...Southwest winds 15 to 25 knots becoming north.
Showers and thunderstorms likely. Waves 3 to 6 feet subsiding to
1 to 3 feet.
.FRIDAY...North winds 15 to 20 knots diminishing to 5 to
15 knots. A chance of showers during the day. Waves 1 to 3 feet.
.SATURDAY...Northeast winds 10 knots or less becoming north.
Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-250900-
MAFOR 2503/
ONTARIO WEST 1/2 13820 12120 11110 11200 11300. Waves 3 to 6 feet
overnight and Tuesday. Waves 1 to 3 feet Tuesday evening.

ONTARIO EAST 1/2 11810 11820 11120 11830 11820 11120 12100. A
chance of showers late this evening...then a chance of showers
and drizzle overnight. A chance of showers Tuesday morning. Waves
2 to 4 feet building to 3 to 5 feet overnight. Waves 3 to 6 feet
Tuesday. Waves 2 to 4 feet subsiding to 2 feet or less Tuesday
evening.

$$



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