490
FZUS61 KBUF 240803
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
402 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.
LOZ062-241500-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
402 AM EDT THU JUL 24 2025
TODAY
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>065-241500-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
402 AM EDT THU JUL 24 2025
TODAY
SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST. 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.
LOZ061-241500-
MAFOR 2409/
ONTARIO WEST 1/2 11500 11510 14520 11610 11510. A CHANCE OF
SHOWERS AND THUNDERSTORMS THIS EVENING, THEN A CHANCE OF SHOWERS
OVERNIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET TODAY. WAVES
2 TO 4 FEET TONIGHT.
ONTARIO EAST 1/2 11410 15510 11510. A CHANCE OF SHOWERS AND
THUNDERSTORMS THIS EVENING, THEN A CHANCE OF SHOWERS OVERNIGHT.
WAVES 1 TO 3 FEET TODAY. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4
FEET TONIGHT.
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