581
FZUS61 KBUF 112013
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
413 PM EDT THU SEP 11 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 WEAKENING COLD FRONT WILL MOVE SOUTH ACROSS THE LOWER
GREAT LAKES THROUGH THIS EVENING. A 30.3 INCH HIGH CENTERED NEAR
JAMES BAY WILL DRIFT SOUTHEAST ACROSS NEW ENGLAND TONIGHT AND
FRIDAY, THEN REACH THE CANADIAN MARITIMES SATURDAY. A WEAK TROUGH OF
LOW PRESSURE AVERAGING 29.9 INCHES WILL THEN MOVE INTO THE LOWER
GREAT LAKES SATURDAY NIGHT THROUGH SUNDAY. A 30.3 INCH HIGH WILL
SLOWLY SHIFT ACROSS QUEBEC AND TO NEW ENGLAND MONDAY THROUGH TUESDAY.
LOZ062-120315-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
413 PM EDT THU SEP 11 2025
TONIGHT
LIGHT AND VARIABLE WINDS BECOMING EAST 10 TO 15 KNOTS.
WAVES 2 FEET OR LESS.
FRIDAY
EAST WINDS 10 KNOTS OR LESS. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
EAST WINDS LESS THAN 10 KNOTS BECOMING SOUTH.
WAVES 1 FOOT OR LESS.
SATURDAY
SOUTHWEST WINDS LESS THAN 10 KNOTS. WAVES 1 FOOT OR
LESS.
SATURDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING
NORTHWEST. A CHANCE OF SHOWERS. WAVES 1 FOOT OR LESS.
SUNDAY
NORTH WINDS 10 KNOTS OR LESS BECOMING EAST. WAVES
1 FOOT OR LESS.
MONDAY
EAST WINDS 5 TO 10 KNOTS. WAVES 1 FOOT OR LESS.
TUESDAY
EAST WINDS 10 KNOTS OR LESS. WAVES 1 FOOT OR LESS.
LOZ063>065-120315-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
413 PM EDT THU SEP 11 2025
TONIGHT
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST.
WAVES 1 TO 3 FEET.
FRIDAY
EAST WINDS 10 KNOTS OR LESS BECOMING NORTHEAST. WAVES
2 FEET OR LESS.
FRIDAY NIGHT
EAST WINDS LESS THAN 10 KNOTS BECOMING SOUTH.
WAVES 1 FOOT OR LESS.
SATURDAY
SOUTH WINDS 10 KNOTS OR LESS BECOMING WEST. WAVES
1 FOOT OR LESS.
SATURDAY NIGHT
SOUTHWEST WINDS 10 KNOTS OR LESS BECOMING WEST.
A CHANCE OF SHOWERS. WAVES 1 FOOT OR LESS.
SUNDAY
NORTHWEST WINDS 10 KNOTS OR LESS BECOMING EAST. WAVES
1 FOOT OR LESS.
MONDAY
EAST WINDS 10 KNOTS OR LESS. WAVES 1 FOOT OR LESS.
TUESDAY
EAST WINDS LESS THAN 10 KNOTS BECOMING SOUTHEAST.
WAVES 1 FOOT OR LESS.
LOZ061-120315-
MAFOR 1121/
ONTARIO WEST 1/2 11600 11800 11100 11210 14200. WAVES 2 FEET OR
LESS.
ONTARIO EAST 1/2 11700 11800 12110 11100 12200 11100. WAVES 1 TO
3 FEET TONIGHT. WAVES 2 FEET OR LESS FRIDAY.
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