Great Lakes Forecast
Issued by NWS

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FZUS61 KBUF 202330
GLFLO

OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
730 PM EDT WED MAY 20 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE ONTARIO

.SYNOPSIS...A 30.3 INCH HIGH CENTERED ACROSS THE UPPER PLAINS WILL
RIDGE ACROSS THE GREAT LAKES TONIGHT AND TOMORROW. A 29.7 INCH LOW
WILL FORM NEAR THE OTTAWA VALLEY TOMORROW AND TRACK ACROSS THE
LOWER SAINT LAWRENCE VALLEY FRIDAY. MEANWHILE A COLD FRONT WILL
CROSS THE LAKE FROM NORTH TO SOUTH ON FRIDAY BEFORE A 30.4 INCH
AREA OF HIGH PRESSURE MOVES OVER THE REGION THIS WEEKEND.

LOZ062-210915-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
730 PM EDT WED MAY 20 2015

.OVERNIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST.
WAVES 2 FEET OR LESS.
.THURSDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. WAVES 1 FOOT OR LESS.
.THURSDAY NIGHT...SOUTHWEST WINDS AROUND 10 KNOTS BECOMING WEST.
WAVES 2 FEET OR LESS.
.FRIDAY...NORTHWEST WINDS 5 TO 10 KNOTS BECOMING WEST AND
INCREASING TO 15 TO 20 KNOTS. WAVES 2 FEET OR LESS.
.FRIDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST
10 TO 15 KNOTS. WAVES 1 TO 3 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST. WAVES
1 TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN
10 KNOTS. WAVES 2 FEET OR LESS.
.MONDAY...SOUTHEAST WINDS 10 KNOTS OR LESS BECOMING SOUTH. A
CHANCE OF SHOWERS AND THUNDERSTORMS DURING THE DAY...THEN SHOWERS
LIKELY WITH A CHANCE OF THUNDERSTORMS MONDAY NIGHT. WAVES 1 FOOT
OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ063>065-210915-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
730 PM EDT WED MAY 20 2015

.OVERNIGHT...WEST WINDS 15 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES 1 TO 2 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING WEST.
WAVES 2 FEET OR LESS.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST. WAVES
2 FEET OR LESS.
.FRIDAY NIGHT...WEST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO
15 KNOTS. WAVES 1 TO 3 FEET.
.SATURDAY...WEST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST. WAVES
1 TO 3 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST LESS THAN
10 KNOTS. WAVES 1 TO 3 FEET SUBSIDING TO 1 FOOT OR LESS.
.MONDAY...SOUTHEAST WINDS 10 KNOTS OR LESS BECOMING SOUTH. A
CHANCE OF SHOWERS AND THUNDERSTORMS DURING THE DAY...THEN SHOWERS
LIKELY WITH A CHANCE OF THUNDERSTORMS MONDAY NIGHT. WAVES 1 FOOT
OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ061-210915-
MAFOR 2106 AMD/
ONTARIO WEST 1/2 13500 11600 13500. WAVES 2 FEET OR LESS.

ONTARIO EAST 1/2 11610 13500 11510 12500. WAVES 2 FEET OR LESS.

$$


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