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 270010
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
810 PM EDT Wed Jul 26 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 30.2 inch high along the New England coast will move
further offshore overnight while a 29.9 inch frontal trough will
push south across the southern parts of Ontario. This trough will
cross the lake on Thursday. An expansive 30.1 inch high over
northern Ontario Thursday night will become anchored over the
Upper Great Lakes Friday and Saturday. The high will expand across
the Lower Great lakes on Sunday.

LOZ062-063-270315-
Lake Ontario open waters from the Niagara River to Sodus Bay-
810 PM EDT Wed Jul 26 2017

.TONIGHT...East winds 10 knots or less becoming southwest 10 to
15 knots. Showers likely with a chance of thunderstorms. Waves 1
foot or less.
.THURSDAY...West winds 15 to 20 knots diminishing to 10 to
15 knots. Showers likely with a chance of thunderstorms early...
then a chance of showers and thunderstorms. Waves 1 to 3 feet.
.THURSDAY NIGHT...West winds 10 to 15 knots becoming northeast
15 to 20 knots. Waves building to 2 to 4 feet.
.FRIDAY...Northeast winds 15 to 20 knots. Waves 3 to 5 feet.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots becoming north.
Waves 3 to 5 feet.
.SATURDAY...North winds 15 to 20 knots. Waves 3 to 5 feet.
.SUNDAY...Northwest winds 10 knots or less. Waves 1 foot or less.
.MONDAY...Southwest winds 10 knots or less. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ064-065-270315-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
810 PM EDT Wed Jul 26 2017

.TONIGHT...West winds 10 knots or less becoming south 10 to
15 knots. Showers becoming likely with a chance of thunderstorms.
Waves averaging one foot.
.THURSDAY...Southwest winds 15 to 20 knots becoming west 10 to
15 knots. Showers likely with a chance of thunderstorms early...
then just a chance of showers and thunderstorms from late morning
on. Waves building to 2 to 4 feet.
.THURSDAY NIGHT...West winds 5 to 10 knots becoming northeast and
increasing to 15 to 20 knots. Waves 1 to 3 feet building to 2 to
4 feet.
.FRIDAY...Northeast winds 15 to 20 knots. Waves building to 3 to
5 feet.
.FRIDAY NIGHT...Northeast winds 15 to 25 knots. Waves 3 to 5 feet.
.SATURDAY...North winds 15 to 20 knots. Waves 2 to 4 feet.
.SUNDAY...Northwest winds 10 knots or less. Waves 1 foot or less.
.MONDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-270315-
MAFOR 2621/
ONTARIO WEST 1/2 11200 11300 11406 11516 14610. A chance of
thunderstorms tonight. A chance of showers and thunderstorms
Thursday. Waves 1 foot or less tonight. Waves 1 to 3 feet
Thursday.

ONTARIO EAST 1/2 11400 11300 11306 11406 11526 11520 12610. A
chance of showers and thunderstorms this evening. A chance of
thunderstorms overnight. A chance of thunderstorms in the
morning...then a chance of showers and thunderstorms Thursday
afternoon. Waves 1 foot or less tonight. Waves 1 to 3 feet
building to 2 to 4 feet Thursday.

$$


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