Great Lakes Forecast
Issued by NWS

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000
FZUS61 KBUF 210821
GLFLO

OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
421 AM EDT FRI APR 21 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE ONTARIO

.SYNOPSIS...A WEAK 29.7 INCH LOW OVER SOUTHERN ONTARIO WILL MOVE
ACROSS SOUTHERN QUEBEC LATE THIS AFTERNOON AND TONIGHT. AN
EXPANSIVE 30.3 INCH HIGH CENTERED OVER THE UPPER MISSISSIPPI
VALLEY ON SATURDAY WILL EXTEND ACROSS THE LOWER GREAT LAKES
SATURDAY NIGHT AND SUNDAY. FOLLOWING THE PASSAGE OF A WEAK COLD
FRONT SUNDAY NIGHT...STRONG HIGH PRESSURE OVER MANITOBA WILL
NOSE ACROSS THE LAKE ON MONDAY.

LOZ062-211515-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
421 AM EDT FRI APR 21 2017

.TODAY...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST. WAVES
1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
.TONIGHT...WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST. WAVES
2 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST. WAVES
1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 5 TO 10 KNOTS. WAVES AVERAGING ONE
FOOT.
.SUNDAY...SOUTH WINDS 10 KNOTS OR LESS. WAVES 1 FOOT OR LESS.
.MONDAY...NORTHEAST WINDS 10 TO 15 KNOTS. WAVES 1 TO 2 FEET.
.TUESDAY...EAST WINDS 10 TO 15 KNOTS. WAVES 2 FEET OR LESS.

$$

LOZ063>065-211515-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
421 AM EDT FRI APR 21 2017

.TODAY...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST. A CHANCE
OF SHOWERS THIS MORNING. WAVES 1 TO 3 FEET BUILDING TO 2 TO
4 FEET.
.TONIGHT...WEST WINDS 15 TO 20 KNOTS. WAVES 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST. WAVES
SUBSIDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTH WINDS 10 KNOTS OR LESS. WAVES AVERAGING ONE FOOT.
.MONDAY...NORTHEAST WINDS 10 TO 15 KNOTS. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. A CHANCE OF SHOWERS.
WAVES 2 FEET OR LESS.

$$

LOZ061-211515-
MAFOR 2109/
ONTARIO WEST 1/2 11510 11520 13620 11610 12620. WAVES 1 TO 3 FEET
BUILDING TO 2 TO 4 FEET TODAY. WAVES 2 TO 4 FEET TONIGHT.

ONTARIO EAST 1/2 11420 11520 12620 11610 13620. A CHANCE OF
SHOWERS THIS MORNING. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET
TODAY. WAVES 2 TO 4 FEET TONIGHT.

$$



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