Great Lakes Forecast
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636
FZUS61 KBUF 210545
GLFLO

OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
145 AM EDT SUN MAY 21 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 30.2 INCH HIGH WILL LINGER ACROSS THE REGION
OVERNIGHT BEFORE SHIFTING EAST TO NEW ENGLAND ON SUNDAY.
MEANWHILE A 29.7 INCH LOW OVER THE MISSOURI VALLEY WILL TRACK TO
THE WESTERN GREAT LAKES. THE LOW WILL DEEPEN TO 29.6 INCHES AS IT
TRACKS TO NEAR JAMES BAY BY MONDAY WHILE PUSHING A COLD FRONT
ACROSS LAKE ONTARIO SUNDAY NIGHT FOLLOWED BY WEAK RIDGING ACROSS
THE LAKE MONDAY AND TUESDAY. THEN A BROAD 29.5 INCH LOW WILL
GRADUALLY MOVE NEAR THE LOWER GREAT LAKES REGION ON WEDNESDAY AND
THURSDAY.

LOZ062-210915-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
145 AM EDT SUN MAY 21 2017

.OVERNIGHT...EAST WINDS 10 TO 15 KNOTS. SCATTERED SHOWERS.
WAVES 2 TO 3 FEET.
.SUNDAY...EAST WINDS 15 TO 20 KNOTS. A CHANCE OF SHOWERS IN THE
MORNING...THEN SHOWERS IN THE AFTERNOON. WAVES 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST.
SHOWERS. WAVES 2 FEET OR LESS.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 15 TO
20 KNOTS. SHOWERS LIKELY IN THE MORNING. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO
10 TO 15 KNOTS. WAVES 1 TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST. A
CHANCE OF SHOWERS. WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING NORTHEAST. A
CHANCE OF SHOWERS. WAVES 1 FOOT OR LESS.
.THURSDAY...NORTHEAST WINDS 5 TO 10 KNOTS BECOMING NORTHWEST.
SHOWERS LIKELY DURING THE DAY...THEN SCATTERED SHOWERS THURSDAY
NIGHT. WAVES 1 FOOT OR LESS.

$$

LOZ063>065-210915-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
145 AM EDT SUN MAY 21 2017

.OVERNIGHT...EAST WINDS 10 TO 15 KNOTS BECOMING SOUTHEAST
15 TO 20 KNOTS. SCATTERED SHOWERS LATE. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTHEAST WINDS 15 TO 20 KNOTS. SCATTERED SHOWERS
THROUGH EARLY AFTERNOON...THEN SHOWERS LATE. WAVES 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS BECOMING SOUTH AND
INCREASING TO 15 TO 25 KNOTS. SHOWERS. WAVES 1 TO 2 FEET BUILDING
TO 2 TO 4 FEET.
.MONDAY...SOUTH WINDS 15 TO 20 KNOTS BECOMING WEST. SHOWERS IN
THE MORNING...THEN A CHANCE OF SHOWERS IN THE AFTERNOON. WAVES
2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...WEST WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST
10 TO 15 KNOTS. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST.
WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING NORTH. A
CHANCE OF SHOWERS. WAVES 1 FOOT OR LESS.
.THURSDAY...EAST WINDS 5 TO 10 KNOTS BECOMING NORTHWEST. SHOWERS
LIKELY DURING THE DAY...THEN SCATTERED SHOWERS THURSDAY NIGHT.
WAVES 1 FOOT OR LESS.

$$

LOZ061-210915-
MAFOR 2103/
ONTARIO WEST 1/2 13210 12220 11226 12316. SCATTERED SHOWERS
OVERNIGHT. A CHANCE OF SHOWERS SUNDAY MORNING. WAVES 1 TO 3 FEET.

ONTARIO EAST 1/2 11210 11310 14320 11310 11426. WAVES 2 FEET OR
LESS OVERNIGHT. WAVES 1 TO 3 FEET SUNDAY AND SUNDAY EVENING.

$$


WOOD



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