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 162048
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
348 PM EST Thu Nov 16 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 29.6 inch over Quebec will weaken and and move east
across Maine tonight. A 30.2 inch high will approach from the
Upper Great Lakes tonight. The high will cross the lake on Friday
then will exit across New England Friday night as a 29.3 inch low
will consolidate over the mid western states. The storm system
will strengthen to 28.9 inches on Saturday as it will pass to the
west of the lake. The storm will maintain its strength on Sunday
when it will move to central Quebec.

LOZ062-170430-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
348 PM EST Thu Nov 16 2017

.TONIGHT...Northwest winds to 30 knots diminishing to 15 to
20 knots. Waves 6 to 9 feet subsiding to 4 to 7 feet. Waves
occasionally around 11 feet.
.FRIDAY...Northwest winds 15 to 20 knots becoming southwest 5 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.FRIDAY NIGHT...South winds 5 to 15 knots. A chance of rain
showers in the evening, then rain likely overnight. Waves 1 to
3 feet.
.SATURDAY...South winds 15 to 25 knots. Rain. Waves 1 to 3 feet.
.SATURDAY NIGHT...Southwest winds to 30 knots becoming west and
increasing to 40 knot gales overnight. Rain showers in the
evening, then rain and snow showers overnight. Waves 2 feet or
less building to 5 to 8 feet. Waves occasionally around 10 feet.
.SUNDAY...Northwest gales to 40 knots becoming west and
diminishing to 15 to 25 knots. Lake effect rain and snow showers
during the day, then occasional lake effect snow Sunday night.
Waves 7 to 10 feet subsiding to 5 to 8 feet. Waves occasionally
around 13 feet.
.MONDAY...West winds 15 to 20 knots becoming southwest. Snow
showers likely during the day. Waves 3 to 6 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west. A chance
of rain showers Tuesday night. Waves 3 to 6 feet building to 6 to
9 feet, then subsiding to 4 to 7 feet. Waves occasionally around
11 feet.

$$

LOZ063>065-170430-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
348 PM EST Thu Nov 16 2017

.TONIGHT...Northwest winds to 30 knots diminishing to 15 to
25 knots. A chance of rain showers this evening. Waves 7 to
11 feet subsiding to 6 to 9 feet. Waves occasionally around
14 feet.
.FRIDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves
occasionally around 9 feet.
.FRIDAY NIGHT...Southwest winds 5 to 15 knots becoming south
15 to 20 knots. A chance of rain showers overnight. Waves 1 to
3 feet building to 2 to 4 feet.
.SATURDAY...South winds 15 to 25 knots increasing to 30 knots.
Rain. Waves 2 to 4 feet building to 3 to 5 feet.
.SATURDAY NIGHT...South winds to 30 knots becoming west and
increasing to 45 knot gales overnight. Rain showers in the
evening, then rain and snow showers overnight. Waves 3 to 5 feet
building to 5 to 8 feet. Waves occasionally around 10 feet.
.SUNDAY...West gales to 40 knots becoming northwest and
diminishing to 15 to 25 knots. Lake effect rain and snow showers
during the day, then occasional lake effect snow Sunday night.
Waves 7 to 11 feet subsiding to 6 to 9 feet. Waves occasionally
around 14 feet.
.MONDAY...West winds 15 to 20 knots becoming southwest.
Occasional lake effect snow during the day, then a chance of snow
showers Monday night. Waves 3 to 6 feet building to 4 to 7 feet,
then subsiding to 3 to 6 feet. Waves occasionally around 9 feet.
.TUESDAY...Southwest winds 15 to 20 knots becoming west. A chance
of rain showers Tuesday night. Waves 3 to 6 feet building to 6 to
10 feet, then subsiding to 5 to 8 feet. Waves occasionally around
13 feet.

$$

LOZ061-170430-
MAFOR 1622/
ONTARIO WEST 1/2 13740 11730 11720 11710 12610. Waves 6 to 10
feet subsiding to 5 to 8 feet, and occasionally around 13 feet
tonight. Waves 3 to 6 feet subsiding to 1 to 3 feet Friday.

ONTARIO EAST 1/2 13740 11730 12720 11710 11610. A chance of rain
showers early this evening. Waves 7 to 11 feet subsiding to 6 to
9 feet, and occasionally around 14 feet tonight. Waves 4 to 7
feet subsiding to 1 to 3 feet, and occasionally around 9 feet
Friday.

$$



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