486
FZUS61 KBUF 240203
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
1003 PM EDT WED JUL 23 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 30.2 INCH HIGH WILL STALL JUST OFF THE ATLANTIC
COASTLINE THROUGH TOMORROW. A WEAK COLD FRONT WILL THEN CROSS THE
GREAT LAKES FROM NORTHWEST TO SOUTHEAST FRIDAY, BEFORE STALLING JUST
SOUTH OF NEW YORK STATE FRIDAY NIGHT. ANOTHER 30.1 INCH HIGH WILL
THEN BUILD FROM NEAR JAMES BAY FRIDAY NIGHT TO NORTHERN NEW ENGLAND
SATURDAY NIGHT, THEN INTO THE CANADIAN MARITIMES SUNDAY. MEANWHILE A
WEAK 29.8 INCH SURFACE LOW WILL PASS NEAR THE LAKE SUNDAY MORNING,
TO BE FOLLOWED BY A 30.0 INCH SURFACE RIDGE AXIS OVER THE LAKE FOR
MONDAY.
LOZ062-240900-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
1003 PM EDT WED JUL 23 2025
OVERNIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING
SOUTHWEST. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO
20 KNOTS. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
THURSDAY NIGHT
SOUTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO
10 TO 15 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 2 TO
4 FEET.
FRIDAY
SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST. A CHANCE
OF SHOWERS. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
WEST WINDS 5 TO 10 KNOTS BECOMING NORTHEAST.
WAVES AROUND 1 FOOT.
SATURDAY
EAST WINDS 5 TO 10 KNOTS BECOMING SOUTH. A CHANCE OF
SHOWERS AND THUNDERSTORMS SATURDAY NIGHT. WAVES 1 TO 2 FEET.
SUNDAY
WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS DURING THE DAY. WAVES 1 TO 2 FEET.
MONDAY
WEST WINDS 10 KNOTS OR LESS INCREASING TO 10 TO
15 KNOTS. A CHANCE OF SHOWERS MONDAY NIGHT. WAVES 1 TO 3 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ063>065-240900-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
1003 PM EDT WED JUL 23 2025
OVERNIGHT
SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH.
WAVES 2 FEET OR LESS.
THURSDAY
SOUTH WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS. WAVES 1 TO 3 FEET.
THURSDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. A CHANCE OF
SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO 3 FEET.
FRIDAY
SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
NORTHWEST WINDS 5 TO 10 KNOTS BECOMING NORTHEAST.
WAVES 2 FEET OR LESS.
SATURDAY
NORTHEAST WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST. A
CHANCE OF SHOWERS AND THUNDERSTORMS SATURDAY NIGHT. WAVES 1 FOOT
OR LESS.
SUNDAY
SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST. A CHANCE
OF SHOWERS AND THUNDERSTORMS DURING THE DAY. WAVES 2 FEET OR
LESS.
MONDAY
WEST WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST 10 TO
15 KNOTS. A CHANCE OF SHOWERS MONDAY NIGHT. WAVES 2 FEET OR LESS.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ061-240900-
MAFOR 2403/
ONTARIO WEST 1/2 12400 11500 13510 12520. A CHANCE OF SHOWERS
THURSDAY EVENING. WAVES 1 FOOT OR LESS OVERNIGHT. WAVES 1 TO 3
FEET BUILDING TO 2 TO 4 FEET THURSDAY. WAVES 2 TO 4 FEET THURSDAY
EVENING.
ONTARIO EAST 1/2 11300 13410 11510 11500 11400 11510. WAVES 2
FEET OR LESS OVERNIGHT. WAVES 1 TO 3 FEET THURSDAY. WAVES 2 FEET
OR LESS THURSDAY EVENING.
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