391
FZUS61 KBUF 100202
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
1002 PM EDT TUE SEP 9 2025
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 30.3 INCH RIDGE OF HIGH PRESSURE WILL REMAIN IN PLACE
FROM THE LOWER GREAT LAKES TO THE CANADIAN MARITIMES THROUGH
WEDNESDAY. A WEAK COLD FRONT WILL THEN MOVE SOUTH ACROSS THE LAKE
THURSDAY. ANOTHER 30.3 INCH HIGH CENTERED NEAR JAMES BAY THURSDAY
WILL DRIFT SOUTHEAST ACROSS NEW ENGLAND FRIDAY, THEN REACH THE
CANADIAN MARITIMES SATURDAY.
LOZ062-100900-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
1002 PM EDT TUE SEP 9 2025
OVERNIGHT
EAST WINDS 5 TO 10 KNOTS BECOMING SOUTH. WAVES
AROUND 1 FOOT.
WEDNESDAY
SOUTH WINDS 5 TO 10 KNOTS BECOMING LIGHT AND
VARIABLE. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WINDS LESS THAN 10 KNOTS. WAVES 1 FOOT OR
LESS.
THURSDAY
NORTHWEST WINDS 10 KNOTS OR LESS. WAVES 1 FOOT OR
LESS.
THURSDAY NIGHT
LIGHT AND VARIABLE WINDS BECOMING EAST 5 TO
10 KNOTS. WAVES 1 FOOT OR LESS.
FRIDAY
EAST WINDS 10 KNOTS OR LESS BECOMING SOUTH. WAVES
1 FOOT OR LESS.
SATURDAY
WEST WINDS 10 KNOTS OR LESS. A CHANCE OF SHOWERS
SATURDAY NIGHT. WAVES 1 FOOT OR LESS.
SUNDAY
NORTH WINDS 5 TO 10 KNOTS BECOMING NORTHEAST. A CHANCE
OF SHOWERS DURING THE DAY. WAVES 2 FEET OR LESS.
LOZ063>065-100900-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
1002 PM EDT TUE SEP 9 2025
OVERNIGHT
EAST WINDS 5 TO 15 KNOTS BECOMING SOUTH. WAVES
2 FEET OR LESS.
WEDNESDAY
SOUTH WINDS 5 TO 15 KNOTS BECOMING NORTH LESS THAN
10 KNOTS. WAVES 1 TO 3 FEET SUBSIDING TO 1 FOOT OR LESS.
WEDNESDAY NIGHT
LIGHT AND VARIABLE WINDS. WAVES 1 FOOT OR
LESS.
THURSDAY
NORTHWEST WINDS 5 TO 10 KNOTS. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHWEST WINDS 5 TO 10 KNOTS BECOMING
NORTHEAST. WAVES 2 FEET OR LESS.
FRIDAY
NORTHEAST WINDS 10 KNOTS OR LESS BECOMING SOUTH. WAVES
2 FEET OR LESS.
SATURDAY
SOUTH WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST. A
CHANCE OF SHOWERS SATURDAY NIGHT. WAVES 1 FOOT OR LESS.
SUNDAY
NORTHWEST WINDS 5 TO 10 KNOTS BECOMING NORTHEAST. A
CHANCE OF SHOWERS. WAVES 2 FEET OR LESS.
LOZ061-100900-
MAFOR 1003/
ONTARIO WEST 1/2 11300 12400 11500 11600 11100 11200 11300. WAVES
2 FEET OR LESS.
ONTARIO EAST 1/2 11300 13410 11400 13800. WAVES 2 FEET OR LESS
OVERNIGHT. WAVES 1 TO 3 FEET SUBSIDING TO 1 FOOT OR LESS
WEDNESDAY. WAVES 1 FOOT OR LESS WEDNESDAY EVENING.
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