Great Lakes Forecast
Issued by NWS

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887
FZUS61 KBUF 300836
GLFLO

GLFLO

OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
430 AM EDT SUN APR 30 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE ONTARIO

.SYNOPSIS...A WARM FRONT OVER THE OHIO VALLEY WILL SLOWLY PUSH
NORTH TODAY AND CROSS THE LAKE TONIGHT. 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.

LOZ062-063-301500-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO SODUS BAY-
430 AM EDT SUN APR 30 2017

.TODAY...NORTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS
EARLY...THEN SHOWERS LIKELY THIS MORNING. SHOWERS LIKELY WITH A
CHANCE OF THUNDERSTORMS THIS AFTERNOON. WAVES 1 TO 3 FEET
BUILDING TO 5 TO 8 FEET.
.TONIGHT...NORTHEAST WINDS 15 TO 25 KNOTS BECOMING EAST AND
DIMINISHING TO 10 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY...THEN SHOWERS LIKELY WITH A CHANCE OF
THUNDERSTORMS. A CHANCE OF SHOWERS AND THUNDERSTORMS LATE. WAVES
4 TO 7 FEET SUBSIDING TO 2 TO 4 FEET.
.MONDAY...EAST WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST. A CHANCE
OF SHOWERS IN THE MORNING...THEN SHOWERS WITH THUNDERSTORMS
LIKELY IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS IN THE AFTERNOON. WAVES 1 TO 3 FEET SUBSIDING TO 1 FOOT OR
LESS.
.MONDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHWEST AND
INCREASING TO 15 TO 20 KNOTS. SHOWERS WITH THUNDERSTORMS LIKELY
IN THE EVENING...THEN A CHANCE OF SHOWERS OVERNIGHT. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE EVENING. WAVES 1 TO
3 FEET.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST. A CHANCE
OF SHOWERS. WAVES 2 TO 4 FEET BUILDING TO 4 TO 7 FEET...THEN
SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY...WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS. A CHANCE OF SHOWERS DURING THE DAY. WAVES 3 TO 6 FEET
SUBSIDING TO 1 TO 3 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.

$$

LOZ064-065-301500-
LAKE ONTARIO OPEN WATERS FROM SODUS BAY TO THE SAINT LAWRENCE
RIVER-
430 AM EDT SUN APR 30 2017

.TODAY...NORTHEAST WINDS 15 TO 20 KNOTS. SHOWERS LIKELY THIS
MORNING. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS THIS
AFTERNOON. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...NORTHEAST WINDS 15 TO 20 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE
EVENING. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS LATE. WAVES
2 TO 4 FEET SUBSIDING TO 2 FEET OR LESS.
.MONDAY...SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING SOUTH. A CHANCE
OF SHOWERS IN THE MORNING...THEN A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
.MONDAY NIGHT...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST.
SHOWERS WITH THUNDERSTORMS LIKELY IN THE EVENING...THEN A CHANCE
OF SHOWERS OVERNIGHT. SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS
IN THE EVENING. WAVES 2 FEET OR LESS.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST. A CHANCE
OF SHOWERS. WAVES 1 TO 3 FEET BUILDING TO 4 TO 7 FEET.
.WEDNESDAY...WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST AND
DIMINISHING TO 5 TO 10 KNOTS. A CHANCE OF SHOWERS DURING THE DAY.
WAVES 3 TO 6 FEET SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 10 KNOTS OR LESS BECOMING EAST. A
CHANCE OF RAIN. WAVES 2 FEET OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ061-301400-
MAFOR 3009/
ONTARIO WEST 1/2 14230 12130 11126 11210. A CHANCE OF SHOWERS
TODAY. A CHANCE OF SHOWERS AND THUNDERSTORMS TONIGHT. WAVES 2 TO
3 FEET BUILDING TO 5 TO 8 FEET TODAY. WAVES 4 TO 7 FEET SUBSIDING
TO 2 TO 4 FEET TONIGHT.

ONTARIO EAST 1/2 12120 11136 12130 11230 11310 11300. A CHANCE OF
SHOWERS THIS MORNING. A CHANCE OF THUNDERSTORMS THIS AFTERNOON. A
CHANCE OF SHOWERS AND THUNDERSTORMS TONIGHT. WAVES 2 TO 4 FEET
BUILDING TO 3 TO 6 FEET TODAY. WAVES 3 TO 5 FEET SUBSIDING TO 1
TO 3 FEET TONIGHT.

$$



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