Great Lakes Forecast
Issued by NWS

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930
FZUS61 KBUF 292057
GLFLO

OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
457 PM EDT SAT APR 29 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE ONTARIO

.SYNOPSIS...A WARM FRONT OVER THE OHIO VALLEY WILL STALL NEAR THE
NEW YORK PENNSYLVANIA BORDER TONIGHT BEFORE MOVING SLOWLY NORTH ON
SUNDAY AND CROSSING THE LAKE SUNDAY NIGHT. A 29.1 INCH LOW WILL
THEN MOVE INTO THE WESTERN GREAT LAKES REGION MONDAY BEFORE
REACHING WESTERN QUEBEC BY TUESDAY. A COLD FRONT TRAILING THIS
LOW WILL CROSS THE LAKE MONDAY EVENING. A 30.2 INCH AREA OF HIGH
PRESSURE WILL ADVANCE ACROSS THE GREAT LAKES WEDNESDAY...CROSSING
THE LAKE WEDNESDAY NIGHT.

LOZ062-063-300315-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO SODUS BAY-
457 PM EDT SAT APR 29 2017

.TONIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST. WAVES
1 TO 3 FEET.
.SUNDAY...NORTHEAST WINDS TO 30 KNOTS. RAIN SHOWERS LIKELY WITH
SCATTERED THUNDERSTORMS THROUGH EARLY AFTERNOON...THEN SCATTERED
RAIN SHOWERS LATE. WAVES 3 TO 6 FEET BUILDING TO 5 TO 8 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST
15 TO 20 KNOTS. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.
WAVES 4 TO 7 FEET SUBSIDING TO 2 TO 4 FEET.
.MONDAY...EAST WINDS 15 TO 20 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING...
THEN SHOWERS WITH THUNDERSTORMS LIKELY IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE AFTERNOON. WAVES
2 TO 4 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING SOUTHWEST
AND INCREASING TO 15 TO 20 KNOTS. SHOWERS WITH THUNDERSTORMS
LIKELY IN THE EVENING. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS.
WAVES 3 TO 6 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS.
WAVES 3 TO 5 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 10 KNOTS. A CHANCE OF RAIN.
WAVES 1 FOOT OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ064-065-300315-
LAKE ONTARIO OPEN WATERS FROM SODUS BAY TO THE SAINT LAWRENCE
RIVER-
457 PM EDT SAT APR 29 2017

.TONIGHT...WEST WINDS 15 TO 20 KNOTS BECOMING NORTHEAST. WAVES
1 TO 3 FEET.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KNOTS. SHOWERS LIKELY WITH
SCATTERED THUNDERSTORMS THROUGH EARLY AFTERNOON...THEN JUST A
CHANCE OF SHOWERS LATE. WAVES 3 TO 5 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. A CHANCE OF SHOWERS IN THE EVENING...THEN A CHANCE OF
SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 2 TO 4 FEET.
.MONDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST. A CHANCE
OF SHOWERS AND THUNDERSTORMS IN THE MORNING...THEN SHOWERS WITH
THUNDERSTORMS LIKELY IN THE AFTERNOON. SOME THUNDERSTORMS MAY
PRODUCE GUSTY WINDS IN THE AFTERNOON. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST.
SHOWERS WITH THUNDERSTORMS LIKELY. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS.
WAVES BUILDING TO 4 TO 7 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS.
WAVES 3 TO 6 FEET.
.THURSDAY...NORTHEAST WINDS 10 KNOTS OR LESS. A CHANCE OF RAIN.
WAVES AVERAGING ONE FOOT.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ061-300315-
MAFOR 2921/
ONTARIO WEST 1/2 11610 11710 11810 11120 11136 12236 11230.
SCATTERED THUNDERSTORMS IN THE MORNING...THEN SCATTERED SHOWERS
SUNDAY AFTERNOON. WAVES 1 TO 3 FEET TONIGHT. WAVES 3 TO 6 FEET
BUILDING TO 5 TO 8 FEET SUNDAY.

ONTARIO EAST 1/2 11620 11610 11810 11120 11130 12136 11130.
SCATTERED THUNDERSTORMS IN THE MORNING...THEN SCATTERED SHOWERS
AND THUNDERSTORMS SUNDAY AFTERNOON. WAVES 1 TO 3 FEET TONIGHT.
WAVES 3 TO 6 FEET BUILDING TO 4 TO 7 FEET SUNDAY.

$$



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