Great Lakes Forecast
Issued by NWS

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FZUS61 KBUF 200541
GLFLO

OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
141 AM EDT THU APR 20 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE ONTARIO

.SYNOPSIS...A 29.7 INCH LOW OVER WISCONSIN THURSDAY MORNING WILL
MOVE THROUGH THE CENTRAL GREAT LAKES THURSDAY AFTERNOON BEFORE
REACHING SOUTHERN QUEBEC ON FRIDAY. A COLD FRONT TRAILING THIS LOW
WILL CROSS THE LAKE THURSDAY NIGHT. THE LOW WILL THEN MOVE INTO
THE CANADIAN MARITIMES SATURDAY.

LOZ062-063-200900-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO SODUS BAY-
141 AM EDT THU APR 20 2017

.OVERNIGHT...NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST
15 TO 20 KNOTS. WAVES 2 FEET OR LESS.
.THURSDAY...NORTHEAST WINDS 15 TO 25 KNOTS. SHOWERS LIKELY EARLY
IN THE AFTERNOON...WITH A CHANCE OF THUNDERSTORMS LATE. WAVES 1
TO 3 FEET BUILDING TO 4 TO 7 FEET.
.THURSDAY NIGHT...EAST WINDS TO 30 KNOTS BECOMING SOUTHWEST AND
DIMINISHING TO 10 TO 15 KNOTS OVERNIGHT. SHOWERS WITH A CHANCE OF
THUNDERSTORMS IN THE EVENING...THEN A CHANCE OF SHOWERS AND
THUNDERSTORMS OVERNIGHT. WAVES 4 TO 7 FEET SUBSIDING TO 2 FEET OR
LESS.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS. WAVES 1 TO 3 FEET BUILDING
TO 2 TO 4 FEET.
.FRIDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES 3 TO 5 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 20 KNOTS BECOMING NORTHEAST AND
DIMINISHING TO 10 KNOTS OR LESS. WAVES 2 TO 4 FEET SUBSIDING TO
1 FOOT OR LESS.
.SUNDAY...EAST WINDS 10 KNOTS OR LESS BECOMING NORTH 10 TO
15 KNOTS. WAVES 2 FEET OR LESS.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING EAST. WAVES 2 FEET
OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ064-065-200900-
LAKE ONTARIO OPEN WATERS FROM SODUS BAY TO THE SAINT LAWRENCE
RIVER-
141 AM EDT THU APR 20 2017

.OVERNIGHT...NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST
15 TO 20 KNOTS. WAVES 2 FEET OR LESS.
.THURSDAY...NORTHEAST WINDS 15 TO 20 KNOTS. A CHANCE OF SHOWERS
LATE. WAVES 1 TO 3 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 15 TO 20 KNOTS BECOMING SOUTH.
SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE EVENING...THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO 3 FEET.
.FRIDAY...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST. A CHANCE
OF SHOWERS IN THE MORNING. WAVES 2 FEET OR LESS BUILDING TO 2 TO
4 FEET.
.FRIDAY NIGHT...WEST WINDS 15 TO 20 KNOTS. WAVES 3 TO 5 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 20 KNOTS BECOMING NORTHEAST AND
DIMINISHING TO 10 KNOTS OR LESS. WAVES 2 TO 4 FEET SUBSIDING TO
1 FOOT OR LESS.
.SUNDAY...EAST WINDS 10 KNOTS OR LESS BECOMING NORTH 10 TO
15 KNOTS. WAVES 1 FOOT OR LESS.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST. WAVES
2 FEET OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ061-200900-
MAFOR 2006 AMD/
ONTARIO WEST 1/2 12110 11220 11230 13236. A CHANCE OF
THUNDERSTORMS THURSDAY AFTERNOON AND EVENING. WAVES 1 FOOT OR
LESS OVERNIGHT. WAVES 1 TO 2 FEET BUILDING TO 4 TO 7 FEET
THURSDAY. WAVES 4 TO 7 FEET THURSDAY EVENING.

ONTARIO EAST 1/2 11820 14120 11136 11236. A CHANCE OF
THUNDERSTORMS THURSDAY EVENING. WAVES 2 FEET OR LESS OVERNIGHT.
WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET THURSDAY. WAVES 3 TO 5
FEET SUBSIDING TO 2 TO 4 FEET THURSDAY EVENING.

$$

JJR


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