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 290836
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
436 AM EDT Thu Jun 29 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 29.5 inch low over Lake Superior this morning will
track across the SOO during the afternoon and evening while a warm
front will push north across Lake Ontario. The front will
continue to move north away from the lake tonight. A second 29.5
inch low will move across the Upper Great Lakes Friday and Friday
night. A cold front extending from this low will cross the lake on
Saturday. High pressure will gradually build across the Lower
Great Lakes on Sunday.

LOZ062-291530-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
436 AM EDT Thu Jun 29 2017

.TODAY...Southeast winds 15 to 20 knots becoming southwest.
Showers likely early...then a chance of showers and thunderstorms
this afternoon. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers and thunderstorms. Waves 2 to
3 feet.
.FRIDAY...Southwest winds 10 to 15 knots. A chance of showers and
thunderstorms in the morning...then showers and thunderstorms
likely in the afternoon. Some thunderstorms may produce gusty
winds. Waves 1 to 3 feet.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Showers and
thunderstorms likely in the evening...then just a chance of
showers and thunderstorms overnight. Waves 1 to 2 feet.
.SATURDAY...Southwest winds 10 to 15 knots. A chance of showers
and thunderstorms. Waves around 1 foot.
.SUNDAY...West winds 5 to 10 knots. Waves around 1 foot.
.MONDAY...West winds 10 knots or less. A chance of showers. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-291530-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
436 AM EDT Thu Jun 29 2017

.TODAY...Southeast winds 15 to 20 knots becoming south 10 to
15 knots. A chance of showers this morning...then showers likely
with a chance of thunderstorms this afternoon. Some thunderstorms
may produce gusty winds. Waves 1 to 3 feet.
.TONIGHT...South winds 10 to 15 knots becoming southwest. Showers
likely with a chance of thunderstorms through the early
overnight...then just a chance of showers and thunderstorms late.
Some thunderstorms may produce gusty winds in the evening. Waves
1 to 3 feet.
.FRIDAY...Southwest winds 10 to 15 knots. A chance of showers and
thunderstorms. Waves 1 to 3 feet.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots becoming south.
Showers and thunderstorms likely. Waves 1 foot or less.
.SATURDAY...Southwest winds 5 to 10 knots. Showers and
thunderstorms likely. Waves 1 foot or less.
.SUNDAY...West winds 10 to 15 knots. Waves 1 to 2 feet.
.MONDAY...West winds 5 to 10 knots. A chance of showers. Waves 1
foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-291530-
MAFOR 2909/
ONTARIO WEST 1/2 11410 11320 11420 11520 11526 13510. A chance of
showers this morning. A chance of thunderstorms this afternoon. A
chance of thunderstorms in the evening...then a chance of showers
and thunderstorms overnight. Waves 1 to 3 feet.

ONTARIO EAST 1/2 11510 11320 11420 13416 11516 11510. A chance of
showers this morning...then a chance of thunderstorms this
afternoon. A chance of thunderstorms in the evening...then a
chance of showers and thunderstorms overnight. Waves 1 to 3 feet.

$$


JJR/RSH



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