340
FZUS61 KBUF 220802
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
402 AM EDT FRI AUG 22 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 30.1 INCH HIGH WILL BUILD ACROSS THE GREAT LAKES
THROUGH FRIDAY NIGHT. A 29.5 INCH LOW WILL MOVE TO NEAR JAMES BAY
SATURDAY, AND LINGER JUST TO THE EAST OF JAMES BAY SUNDAY WHILE
PUSHING A COLD FRONT ACROSS THE LAKE SUNDAY NIGHT. A SECONDARY
FRONTAL BOUNDARY WILL CROSS THE LAKE MONDAY, WITH TROUGHING
REMAINING ACROSS THE LAKE THROUGH MID WEEK.
LOZ062-221500-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
402 AM EDT FRI AUG 22 2025
TODAY
NORTHWEST WINDS LESS THAN 10 KNOTS. WAVES 1 FOOT OR
LESS.
TONIGHT
SOUTHEAST WINDS 10 KNOTS OR LESS BECOMING SOUTH. WAVES
1 FOOT OR LESS.
SATURDAY
SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES 2 FEET OR LESS.
SATURDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. SHOWERS LIKELY.
WAVES 1 TO 3 FEET.
SUNDAY
WEST WINDS 10 TO 15 KNOTS. A CHANCE OF SHOWERS DURING
THE DAY. WAVES 2 TO 3 FEET.
MONDAY
WEST WINDS 10 TO 15 KNOTS. A CHANCE OF SHOWERS. WAVES
2 TO 4 FEET.
TUESDAY
WEST WINDS 10 TO 15 KNOTS BECOMING NORTHWEST. A CHANCE
OF SHOWERS DURING THE DAY. WAVES 2 TO 4 FEET.
LOZ063-221500-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO SODUS BAY-
402 AM EDT FRI AUG 22 2025
TODAY
NORTHWEST WINDS 5 TO 10 KNOTS BECOMING LIGHT AND
VARIABLE. WAVES 1 FOOT OR LESS.
TONIGHT
LIGHT AND VARIABLE WINDS BECOMING SOUTH 5 TO 10 KNOTS.
WAVES 1 FOOT OR LESS.
SATURDAY
SOUTH WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST.
WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
15 TO 20 KNOTS. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN
THE EVENING, THEN SHOWERS LIKELY OVERNIGHT. WAVES 1 TO 3 FEET.
SUNDAY
SOUTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO
15 KNOTS. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS DURING
THE DAY, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS SUNDAY NIGHT.
WAVES 1 TO 3 FEET.
MONDAY
WEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS.
A CHANCE OF SHOWERS. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
TUESDAY
WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS. A CHANCE OF SHOWERS. WAVES 2 TO 4 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ064-065-221500-
LAKE ONTARIO OPEN WATERS FROM SODUS BAY TO THE SAINT LAWRENCE
RIVER-
402 AM EDT FRI AUG 22 2025
TODAY
EAST WINDS 10 KNOTS OR LESS BECOMING WEST. WAVES 1 FOOT
OR LESS.
TONIGHT
SOUTHWEST WINDS 10 KNOTS OR LESS BECOMING SOUTH. WAVES
1 FOOT OR LESS.
SATURDAY
SOUTH WINDS 5 TO 15 KNOTS. WAVES 2 FEET OR LESS.
SATURDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS INCREASING TO 15 TO
20 KNOTS. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS. WAVES
1 TO 3 FEET BUILDING TO 3 TO 5 FEET.
SUNDAY
SOUTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS DURING
THE DAY, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS SUNDAY NIGHT.
WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 2 FEET.
MONDAY
SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST. A CHANCE
OF SHOWERS. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
TUESDAY
WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS. A CHANCE OF SHOWERS DURING THE DAY. WAVES 2 TO 4 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ061-221500-
MAFOR 2209/
ONTARIO WEST 1/2 12700 12600 14400. WAVES 1 FOOT OR LESS.
ONTARIO EAST 1/2 12800 12600 11500 13400. WAVES 1 FOOT OR LESS.
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