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Great Lakes Forecast
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FZUS61 KBUF 202340
GLFLO

OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
730 PM EDT MON MAY 20 2013

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE ONTARIO

.SYNOPSIS...A WEAK 30.0 INCH FRONTAL BOUNDARY OVER SOUTHERN ONTARIO
WILL SETTLE SOUTH ACROSS THE LAKE THIS EVENING. THE FRONT WILL STALL
OVER THE LAKE OVERNIGHT BEFORE PUSHING SOUTH TO NEW YORK STATE
DURING THE DAY TUESDAY. THE FRONT WILL THEN LIFT BACK NORTH ACROSS
THE LAKE TUESDAY NIGHT AND WEDNESDAY. A 29.4 INCH LOW WILL TRACK
EAST ALONG THE FRONT WEDNESDAY NIGHT AND EARLY THURSDAY.

LOZ062-210300-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
730 PM EDT MON MAY 20 2013

.TONIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTH LESS THAN
10 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS FROM LATE EVENING
ON. WAVES 1 FOOT OR LESS.
.TUESDAY...SOUTHWEST WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST.
SCATTERED THUNDERSTORMS WITH A CHANCE OF SHOWERS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
.TUESDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING
SOUTHWEST. SHOWERS AND THUNDERSTORMS LIKELY. WAVES 1 FOOT OR
LESS.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. SHOWERS AND
THUNDERSTORMS. WAVES 1 FOOT OR LESS.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST.
SHOWERS AND THUNDERSTORMS. WAVES 1 FOOT OR LESS.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTH. SHOWERS
LIKELY. WAVES 2 FEET OR LESS.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST. WAVES
1 TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 10 KNOTS OR LESS BECOMING NORTH.
WAVES 1 FOOT OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ063>065-210300-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
730 PM EDT MON MAY 20 2013

.TONIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTH. A CHANCE OF
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
.TUESDAY...SOUTH WINDS 10 KNOTS OR LESS BECOMING NORTHEAST.
SCATTERED THUNDERSTORMS WITH A CHANCE OF SHOWERS FROM LATE
MORNING ON. WAVES 1 FOOT OR LESS.
.TUESDAY NIGHT...EAST WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST.
SHOWERS AND THUNDERSTORMS LIKELY. WAVES 1 FOOT OR LESS.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. SHOWERS AND
THUNDERSTORMS. WAVES 1 FOOT OR LESS.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST.
SHOWERS AND THUNDERSTORMS. WAVES 1 FOOT OR LESS.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH. SHOWERS
LIKELY. WAVES 2 FEET OR LESS.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST. WAVES
1 TO 3 FEET SUBSIDING TO 1 FOOT OR LESS.
.SATURDAY...NORTHWEST WINDS 5 TO 10 KNOTS. WAVES 1 FOOT OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ061-210200-
MAFOR 2100 AMD/
ONTARIO WEST 1/2 12210 11400 11500 11400 11300 11200. A CHANCE OF
SHOWERS AND THUNDERSTORMS TONIGHT. SCATTERED THUNDERSTORMS WITH A
CHANCE OF SHOWERS TUESDAY AFTERNOON. WAVES 1 FOOT OR LESS.

ONTARIO EAST 1/2 11200 11310 11410 12400 11200 11100. A CHANCE OF
SHOWERS AND THUNDERSTORMS OVERNIGHT. SCATTERED THUNDERSTORMS WITH
A CHANCE OF SHOWERS TUESDAY AFTERNOON. WAVES 1 FOOT OR LESS.

$$
National Weather Service National Headquarters
