Great Lakes Forecast
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FZUS61 KBUF 190217
GLFLO

OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
1017 PM EDT TUE APR 18 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE ONTARIO

.SYNOPSIS...A 30.6 INCH AREA OF HIGH PRESSURE WILL SHIFT TO THE
CANADIAN MARITIMES TONIGHT...WHERE IT WILL REMAIN ANCHORED
THROUGH WEDNESDAY. A 30.1 INCH FRONTAL TROUGH WILL THEN PUSH
ACROSS THE LAKE WEDNESDAY NIGHT. 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 EVENING.
THE LOW WILL THEN MOVE INTO THE CANADIAN MARITIMES SATURDAY.

LOZ062-190915-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
1017 PM EDT TUE APR 18 2017

.OVERNIGHT...EAST WINDS 10 TO 15 KNOTS BECOMING SOUTHEAST.
WAVES 1 TO 3 FEET.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST
15 TO 20 KNOTS. SCATTERED SHOWERS EARLY...THEN SHOWERS FROM LATE
MORNING ON. WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING
NORTHEAST. A CHANCE OF SHOWERS. WAVES 1 TO 3 FEET SUBSIDING TO
1 FOOT OR LESS.
.THURSDAY...NORTHEAST WINDS 15 TO 25 KNOTS BECOMING EAST. SHOWERS
LIKELY IN THE MORNING...THEN SHOWERS WITH A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO
3 TO 5 FEET.
.THURSDAY NIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING SOUTH AND
DIMINISHING TO 5 TO 10 KNOTS OVERNIGHT. SHOWERS. WAVES 3 TO
5 FEET SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS. A CHANCE OF SHOWERS DURING THE DAY. WAVES 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING EAST. WAVES 2 FEET
OR LESS.
.SUNDAY...EAST WINDS 5 TO 10 KNOTS BECOMING NORTHEAST. WAVES
AROUND 1 FOOT.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ063>065-190915-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
1017 PM EDT TUE APR 18 2017

.OVERNIGHT...EAST WINDS 10 TO 15 KNOTS BECOMING SOUTHEAST
15 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.WEDNESDAY...SOUTH WINDS 15 TO 25 KNOTS. SCATTERED SHOWERS LATE
IN THE MORNING. SHOWERS IN THE AFTERNOON. WAVES 2 TO 4 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 15 TO 20 KNOTS BECOMING NORTH.
SHOWERS LIKELY IN THE EVENING...THEN A CHANCE OF SHOWERS
OVERNIGHT. WAVES 2 TO 4 FEET SUBSIDING TO 1 FOOT OR LESS.
.THURSDAY...NORTHEAST WINDS 15 TO 20 KNOTS. PATCHY FOG IN THE
MORNING. SHOWERS. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...EAST WINDS 15 TO 20 KNOTS BECOMING WEST 10 TO
15 KNOTS. SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE EVENING...
THEN SHOWERS OVERNIGHT. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET.
.FRIDAY...WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS. A CHANCE OF SHOWERS DURING THE DAY. WAVES 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING EAST. WAVES 2 FEET
OR LESS.
.SUNDAY...EAST WINDS 5 TO 10 KNOTS BECOMING NORTHEAST. WAVES
1 FOOT OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ061-190915-
MAFOR 1903/
ONTARIO WEST 1/2 12210 11320 11420 11426 11526 11520 11600.
SCATTERED SHOWERS WEDNESDAY MORNING. A CHANCE OF SHOWERS
WEDNESDAY EVENING. WAVES 1 TO 3 FEET.

ONTARIO EAST 1/2 11200 11320 12430 12436 11430 11510. SCATTERED
SHOWERS WEDNESDAY MORNING. A CHANCE OF SHOWERS WEDNESDAY EVENING.
WAVES 1 FOOT OR LESS BUILDING TO 1 TO 3 FEET OVERNIGHT. WAVES 2
TO 4 FEET WEDNESDAY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET
WEDNESDAY EVENING.

$$

HITCHCOCK



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