043
FZUS61 KBUF 272009
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
409 PM EDT FRI MAR 27 2026
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 STRONG 30.6 INCH HIGH WILL BUILD FROM THE UPPER
MISSISSIPPI VALLEY TONIGHT TO THE OHIO VALLEY BY SATURDAY AFTERNOON,
THEN OFF THE MID ATLANTIC COAST SUNDAY. A 30.0 INCH TROUGH WILL SAG
SOUTHWARD ACROSS EASTERN CANADA MONDAY, THEN MOVE ACROSS THE EASTERN
GREAT LAKES MONDAY NIGHT, FOLLOWED BY A DEEPER 29.5 INCH LOW TUESDAY
NIGHT INTO EARLY WEDNESDAY.
LOZ062-280300-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
409 PM EDT FRI MAR 27 2026
TONIGHT
WEST WINDS 5 TO 10 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS. WAVES 1 TO 3 FEET.
SATURDAY
WEST WINDS 15 TO 25 KNOTS. WAVES 2 TO 3 FEET BUILDING
TO 3 TO 6 FEET.
SATURDAY NIGHT
WEST WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST.
WAVES 2 TO 4 FEET.
SUNDAY
SOUTHWEST WINDS 15 TO 20 KNOTS. WAVES 2 TO 4 FEET.
SUNDAY NIGHT
SOUTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO
10 TO 15 KNOTS. WAVES 2 TO 4 FEET.
MONDAY
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST AND
INCREASING TO 15 TO 20 KNOTS. RAIN SHOWERS LIKELY MONDAY NIGHT.
WAVES 1 TO 3 FEET.
TUESDAY
SOUTH WINDS TO 30 KNOTS BECOMING SOUTHWEST. SHOWERS
WITH A CHANCE OF THUNDERSTORMS. WAVES 3 TO 5 FEET BUILDING TO
5 TO 8 FEET. WAVES OCCASIONALLY AROUND 10 FEET.
WEDNESDAY
WEST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST. RAIN
SHOWERS LIKELY DURING THE DAY, THEN A CHANCE OF RAIN AND SNOW
SHOWERS WEDNESDAY NIGHT. WAVES 5 TO 8 FEET SUBSIDING TO 3 TO
6 FEET. WAVES OCCASIONALLY AROUND 10 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ063-064-280300-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO MEXICO BAY-
409 PM EDT FRI MAR 27 2026
TONIGHT
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH. WAVES
1 TO 3 FEET.
SATURDAY
NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST. A
CHANCE OF SNOW SHOWERS IN THE MORNING. WAVES 1 TO 3 FEET BUILDING
TO 5 TO 8 FEET. WAVES OCCASIONALLY AROUND 10 FEET.
SATURDAY NIGHT
WEST WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST
10 TO 15 KNOTS. WAVES 4 TO 7 FEET SUBSIDING TO 2 TO 4 FEET. WAVES
OCCASIONALLY AROUND 9 FEET.
SUNDAY
SOUTH WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
SUNDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. WAVES 1 TO
3 FEET.
MONDAY
SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 15 TO
20 KNOTS. A CHANCE OF RAIN SHOWERS MONDAY NIGHT. WAVES 1 TO
3 FEET.
TUESDAY
SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST.
SHOWERS. WAVES 3 TO 6 FEET BUILDING TO 5 TO 8 FEET. WAVES
OCCASIONALLY AROUND 10 FEET.
WEDNESDAY
WEST WINDS 15 TO 25 KNOTS BECOMING NORTH. RAIN
SHOWERS DURING THE DAY, THEN A CHANCE OF RAIN AND SNOW SHOWERS
WEDNESDAY NIGHT. WAVES 5 TO 8 FEET SUBSIDING TO 3 TO 6 FEET.
WAVES OCCASIONALLY AROUND 10 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ065-280300-
LAKE ONTARIO OPEN WATERS FROM MEXICO BAY TO THE SAINT LAWRENCE
RIVER-
409 PM EDT FRI MAR 27 2026
TONIGHT
NORTHWEST WINDS 5 TO 10 KNOTS BECOMING NORTH. WAVES
2 FEET OR LESS.
SATURDAY
NORTHWEST WINDS 5 TO 10 KNOTS BECOMING WEST AND
INCREASING TO 15 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS LATE IN
THE MORNING. WAVES 2 FEET OR LESS BUILDING TO 4 TO 7 FEET. WAVES
OCCASIONALLY AROUND 9 FEET.
SATURDAY NIGHT
WEST WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST
10 TO 15 KNOTS. WAVES 4 TO 7 FEET SUBSIDING TO 2 TO 4 FEET. WAVES
OCCASIONALLY AROUND 9 FEET.
SUNDAY
SOUTH WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
SUNDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. WAVES 1 TO
3 FEET.
MONDAY
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST AND
INCREASING TO 15 TO 20 KNOTS. A CHANCE OF RAIN SHOWERS MONDAY
NIGHT. WAVES 1 TO 3 FEET.
TUESDAY
SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST.
SHOWERS. WAVES 3 TO 6 FEET BUILDING TO 5 TO 8 FEET. WAVES
OCCASIONALLY AROUND 10 FEET.
WEDNESDAY
WEST WINDS 15 TO 25 KNOTS BECOMING NORTH. RAIN
SHOWERS DURING THE DAY, THEN A CHANCE OF RAIN AND SNOW SHOWERS
WEDNESDAY NIGHT. WAVES 5 TO 8 FEET SUBSIDING TO 2 TO 4 FEET.
WAVES OCCASIONALLY AROUND 10 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ061-280300-
MAFOR 2721/
ONTARIO WEST 1/2 11500 14710 11620 12630. WAVES 1 TO 3 FEET
TONIGHT. WAVES 2 TO 3 FEET BUILDING TO 4 TO 7 FEET, AND
OCCASIONALLY AROUND 9 FEET SATURDAY.
ONTARIO EAST 1/2 12700 11710 11810 11710 11620 12630. WAVES 1 TO
3 FEET TONIGHT. WAVES 1 TO 3 FEET BUILDING TO 5 TO 8 FEET, AND
OCCASIONALLY AROUND 10 FEET SATURDAY.
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