Great Lakes Forecast
Issued by NWS

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168
FZUS61 KBUF 202053
GLFLO

OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
453 PM EDT THU APR 20 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE ONTARIO

.SYNOPSIS...A 29.8 INCH LOW ACROSS EASTERN LAKE MICHIGAN WILL
TRACK INTO SOUTHERN ONTARIO PROVINCE TONIGHT. THE STORM SYSTEM
WILL SLOWLY MOVE NORTH TO QUEBEC ON FRIDAY. AS THE LOW MOVES EAST
OF THE LAKE ON SATURDAY...A 30.2 INCH HIGH OVER THE UPPER
MISSISSIPPI VALLEY WILL REACH TO THE EAST ACROSS THE LOWER GREAT
LAKES. HIGH PRESSURE WILL REMAIN IN CONTROL ACROSS LAKE ONTARIO
SUNDAY AND MONDAY.

LOZ062-063-210330-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO SODUS BAY-
453 PM EDT THU APR 20 2017

.TONIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING SOUTH AND
DIMINISHING TO 5 TO 10 KNOTS AFTER MIDNIGHT. SHOWERS AND
SCATTERED THUNDERSTORMS THROUGH THE EARLY OVERNIGHT...THEN A
CHANCE OF SHOWERS LATE. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS THROUGH THE EARLY OVERNIGHT. WAVES 3 TO 5 FEET SUBSIDING TO
2 FEET OR LESS.
.FRIDAY...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST. WAVES
2 FEET OR LESS BUILDING TO 2 TO 4 FEET.
.FRIDAY NIGHT...WEST WINDS 15 TO 20 KNOTS. WAVES 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. WAVES 2 TO 4 FEET SUBSIDING TO 2 FEET OR LESS.
.SATURDAY NIGHT...WEST WINDS 5 TO 10 KNOTS BECOMING NORTH. WAVES
1 FOOT OR LESS.
.SUNDAY...NORTHEAST WINDS 10 KNOTS OR LESS BECOMING NORTH 10 TO
15 KNOTS. WAVES 2 FEET OR LESS.
.MONDAY...NORTHEAST WINDS 15 TO 20 KNOTS BECOMING EAST 5 TO
15 KNOTS. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS BECOMING SOUTH. WAVES
2 FEET OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ064-065-210330-
LAKE ONTARIO OPEN WATERS FROM SODUS BAY TO THE SAINT LAWRENCE
RIVER-
453 PM EDT THU APR 20 2017

.TONIGHT...NORTHEAST WINDS 15 TO 20 KNOTS BECOMING SOUTH 10 TO
15 KNOTS. SHOWERS AND SCATTERED THUNDERSTORMS THROUGH THE EARLY
OVERNIGHT...THEN SHOWERS LIKELY LATE. WAVES 2 FEET OR LESS.
.FRIDAY...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST. A CHANCE
OF SHOWERS EARLY. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO
20 KNOTS. WAVES 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST. WAVES
2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 5 TO 10 KNOTS BECOMING NORTH. WAVES
1 FOOT OR LESS.
.SUNDAY...NORTH WINDS 10 KNOTS OR LESS INCREASING TO 10 TO
15 KNOTS. WAVES 2 FEET OR LESS.
.MONDAY...NORTH WINDS 15 TO 20 KNOTS BECOMING EAST 5 TO 15 KNOTS.
WAVES 1 TO 3 FEET SUBSIDING TO 1 FOOT OR LESS.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS BECOMING SOUTH. WAVES
2 FEET OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ061-210330-
MAFOR 2021/
ONTARIO WEST 1/2 13236 11300 11610 11520 12620. SCATTERED
THUNDERSTORMS TONIGHT. WAVES 3 TO 5 FEET SUBSIDING TO 2 FEET OR
LESS TONIGHT. WAVES 2 FEET OR LESS BUILDING TO 2 TO 4 FEET
FRIDAY.

ONTARIO EAST 1/2 11126 12226 11326 11510 11520 12620. A CHANCE OF
SHOWERS EARLY THIS EVENING...THEN SCATTERED THUNDERSTORMS
TONIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET TONIGHT. WAVES 2 FEET OR LESS BUILDING
TO 2 TO 4 FEET FRIDAY.

$$



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