581
FZUS61 KBUF 241403
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
1002 AM EDT THU JUL 24 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 HIGH OFF OF THE GULF OF MAINE WILL SLIDE
EAST INTO THE NORTHERN ATLANTIC TODAY. MEANWHILE, WEAK COLD FRONT
WILL CROSS THE GREAT LAKES FROM NORTHWEST TO SOUTHEAST TODAY THROUGH
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.
LOZ062-242100-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
1002 AM EDT THU JUL 24 2025
THIS AFTERNOON
SOUTHWEST WINDS 10 TO 15 KNOTS INCREASING TO
15 TO 20 KNOTS. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
TONIGHT
SOUTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO
15 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. A CHANCE OF
SHOWERS LATE. WAVES 2 TO 4 FEET.
FRIDAY
WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS. WAVES
1 TO 3 FEET.
FRIDAY NIGHT
WEST WINDS 5 TO 10 KNOTS BECOMING EAST. WAVES
AROUND 1 FOOT.
SATURDAY
EAST WINDS 5 TO 15 KNOTS BECOMING SOUTH. SHOWERS
LIKELY WITH A CHANCE OF THUNDERSTORMS SATURDAY NIGHT. WAVES 1 TO
2 FEET.
SUNDAY
WEST WINDS 5 TO 15 KNOTS. SHOWERS LIKELY WITH A CHANCE
OF THUNDERSTORMS DURING THE DAY. WAVES 1 TO 3 FEET.
MONDAY
WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS MONDAY
NIGHT. WAVES 2 FEET OR LESS.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ063>065-242100-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
1002 AM EDT THU JUL 24 2025
THIS AFTERNOON
SOUTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO
10 TO 15 KNOTS. WAVES 1 TO 3 FEET.
TONIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS FROM LATE EVENING ON. WAVES 1 TO 3 FEET
BUILDING TO 2 TO 4 FEET.
FRIDAY
WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
NORTHWEST WINDS 5 TO 10 KNOTS BECOMING EAST.
WAVES 2 FEET OR LESS.
SATURDAY
EAST WINDS 5 TO 15 KNOTS BECOMING SOUTH. SHOWERS
LIKELY WITH A CHANCE OF THUNDERSTORMS SATURDAY NIGHT. WAVES
2 FEET OR LESS.
SUNDAY
SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS DURING
THE DAY. WAVES 1 TO 3 FEET.
MONDAY
WEST WINDS 5 TO 10 KNOTS BECOMING SOUTHWEST. A CHANCE
OF SHOWERS MONDAY NIGHT. WAVES 1 TO 2 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ061-242100-
MAFOR 2415/
ONTARIO WEST 1/2 14520 11610 11510 11610 11600. A CHANCE OF
SHOWERS AND THUNDERSTORMS THIS EVENING, THEN A CHANCE OF SHOWERS
OVERNIGHT. A CHANCE OF SHOWERS FRIDAY MORNING. WAVES 1 TO 3 FEET
BUILDING TO 2 TO 4 FEET THIS AFTERNOON. WAVES 2 TO 4 FEET
TONIGHT. WAVES 1 TO 3 FEET FRIDAY MORNING.
ONTARIO EAST 1/2 15510 12610. A CHANCE OF SHOWERS AND
THUNDERSTORMS THIS EVENING, THEN A CHANCE OF SHOWERS OVERNIGHT. A
CHANCE OF SHOWERS AND THUNDERSTORMS FRIDAY MORNING. WAVES 1 TO 3
FEET THIS AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET
TONIGHT. WAVES 2 TO 3 FEET FRIDAY MORNING.
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