Great Lakes Forecast
Issued by NWS

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
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

557
FZUS61 KBUF 192057
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
357 PM EST Sun Nov 19 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 28.8 inches low will move northeast through Quebec
tonight. In its wake...expansive high pressure over the southern
plains will build across the Lower Mississippi Valley and cross
the southern states on Monday. A 29.1 inch low just south of James
Bay on Tuesday will push a cold front across the lake Tuesday
night. High pressure over the plains on Wednesday will then build
across the Ohio Valley and Lower Great Lakes Wednesday night and
Thursday.

LOZ062-200415-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
357 PM EST Sun Nov 19 2017

.TONIGHT...Northwest winds 15 to 25 knots becoming west. Lake
effect snow showers likely. Waves 4 to 7 feet subsiding to 3 to 6
feet. Waves occasionally around 9 feet.
.MONDAY...West winds 15 to 25 knots. A chance of snow showers,
possibly mixing with rain. Waves 3 to 6 feet building to 4 to 7
feet, then subsiding to 3 to 6 feet. Waves occasionally around 9
feet.
.MONDAY NIGHT...Southwest winds 15 to 25 knots. Waves 3 to
6 feet.
.TUESDAY...Southwest winds 15 to 25 knots. Waves 4 to 6 feet.
.TUESDAY NIGHT...Southwest winds 15 to 20 knots becoming west.
Rain showers likely in the evening, then a chance of rain showers
overnight. Waves 3 to 6 feet.
.WEDNESDAY...West winds 15 to 20 knots diminishing to 5 to
10 knots. Waves 3 to 6 feet subsiding to 1 to 3 feet.
.THURSDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. Waves 1 to 3 feet building to 3 to 5 feet.
.FRIDAY...West winds 10 to 15 knots becoming southwest 15 to
20 knots. A chance of rain showers Friday night. Waves 2 to
4 feet building to 3 to 5 feet.

$$

LOZ063>065-200415-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
357 PM EST Sun Nov 19 2017

.TONIGHT...Northwest winds 15 to 25 knots. Lake effect snow and
rain showers likely early, then lake effect snow showers from
late evening on. Waves 5 to 8 feet subsiding to 3 to 6 feet.
Waves occasionally around 10 feet.
.MONDAY...Northwest winds 15 to 25 knots becoming west. Lake
effect snow showers early, mixing with rain by afternoon Waves 3
to 6 feet building to 5 to 8 feet. Waves occasionally around 10
feet.
.MONDAY NIGHT...Southwest winds 15 to 20 knots. Rain showers
likely in the evening. Waves 3 to 6 feet.
.TUESDAY...Southwest winds 15 to 25 knots. Waves 3 to 6 feet.
.TUESDAY NIGHT...Southwest winds 15 to 20 knots becoming west.
Rain showers likely. Waves 3 to 6 feet.
.WEDNESDAY...West winds 15 to 20 knots diminishing to 5 to
15 knots. A chance of snow and rain showers during the day. Waves
3 to 6 feet subsiding to 1 to 3 feet.
.THURSDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of snow and rain showers Thursday night. Waves
1 to 2 feet building to 3 to 5 feet.
.FRIDAY...West winds 10 to 15 knots becoming southwest 15 to
20 knots. A chance of rain showers Friday night. Waves 2 to
4 feet building to 3 to 5 feet.

$$

LOZ061-200415-
MAFOR 1922/
ONTARIO WEST 1/2 12730 11727 11730 14630. A chance of rain
showers, then a chance of lake effect snow showers early this
evening. A chance of snow and rain showers Monday morning. Waves
5 to 8 feet subsiding to 3 to 6 feet, and occasionally around 10
feet tonight. Waves 3 to 6 feet building to 4 to 7 feet, and
occasionally around 9 feet Monday.

ONTARIO EAST 1/2 13737 11727 11737 12637 11630. A chance of lake
effect rain showers Monday afternoon. Waves 5 to 9 feet subsiding
to 3 to 6 feet, and occasionally around 11 feet tonight. Waves 3
to 6 feet building to 5 to 8 feet, and occasionally around 10
feet Monday.

$$



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