598
FZUS61 KBUF 270802
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
402 AM 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 29.6 INCH LOW WILL MOVE EAST ACROSS QUEBEC TONIGHT
BEFORE REACHING THE CANADIAN MARITIMES BY FRIDAY MORNING WHILE
DEEPENING TO 29.4 INCHES. A STRONG 30.6 INCH HIGH WILL BUILD FROM
THE NORTHERN PLAINS FRIDAY AFTERNOON TO THE OHIO VALLEY SATURDAY
AFTERNOON AND 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.
LOZ062-271500-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
402 AM EDT FRI MAR 27 2026
TODAY
NORTH WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET.
TONIGHT
NORTHWEST WINDS 5 TO 15 KNOTS. WAVES 1 TO 3 FEET.
SATURDAY
NORTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST 15 TO
20 KNOTS. WAVES 2 TO 4 FEET.
SATURDAY NIGHT
WEST WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST
10 TO 15 KNOTS. WAVES 2 TO 4 FEET.
SUNDAY
SOUTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO
15 KNOTS. WAVES 2 TO 4 FEET.
MONDAY
SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING NORTHEAST 15 TO
20 KNOTS. A CHANCE OF RAIN SHOWERS MONDAY NIGHT. WAVES 1 TO
3 FEET.
TUESDAY
EAST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST. RAIN
SHOWERS LIKELY. WAVES 3 TO 6 FEET BUILDING TO 4 TO 7 FEET. WAVES
OCCASIONALLY AROUND 9 FEET.
LOZ063-064-271500-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO MEXICO BAY-
402 AM EDT FRI MAR 27 2026
TODAY
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
15 KNOTS. WAVES 4 TO 7 FEET SUBSIDING TO 1 TO 3 FEET. WAVES
OCCASIONALLY AROUND 9 FEET.
TONIGHT
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH. WAVES
1 TO 3 FEET.
SATURDAY
NORTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST 15 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FEET BUILDING TO
3 TO 6 FEET.
SATURDAY NIGHT
WEST WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST
10 TO 15 KNOTS. WAVES 3 TO 6 FEET SUBSIDING TO 2 TO 4 FEET.
SUNDAY
SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST. WAVES
1 TO 3 FEET.
MONDAY
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING NORTHEAST AND
INCREASING TO 15 TO 20 KNOTS. A CHANCE OF RAIN SHOWERS MONDAY
NIGHT. WAVES 1 TO 3 FEET.
TUESDAY
EAST WINDS 15 TO 25 KNOTS BECOMING SOUTH. RAIN SHOWERS
LIKELY. WAVES 3 TO 6 FEET BUILDING TO 4 TO 7 FEET. WAVES
OCCASIONALLY AROUND 9 FEET.
LOZ065-271500-
LAKE ONTARIO OPEN WATERS FROM MEXICO BAY TO THE SAINT LAWRENCE
RIVER-
402 AM EDT FRI MAR 27 2026
TODAY
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
15 KNOTS. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET.
TONIGHT
NORTH WINDS AROUND 10 KNOTS. WAVES 2 FEET OR LESS.
SATURDAY
NORTH WINDS 5 TO 10 KNOTS BECOMING WEST AND
INCREASING TO 15 TO 20 KNOTS. WAVES 1 FOOT OR LESS BUILDING TO
3 TO 5 FEET.
SATURDAY NIGHT
WEST WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST
10 TO 15 KNOTS. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET.
SUNDAY
SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST. WAVES
1 TO 3 FEET.
MONDAY
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING NORTHEAST AND
INCREASING TO 15 TO 20 KNOTS. A CHANCE OF RAIN SHOWERS MONDAY
NIGHT. WAVES 1 TO 3 FEET.
TUESDAY
EAST WINDS 15 TO 25 KNOTS BECOMING SOUTH. RAIN
SHOWERS. WAVES 1 TO 3 FEET BUILDING TO 4 TO 7 FEET. WAVES
OCCASIONALLY AROUND 9 FEET.
LOZ061-271500-
MAFOR 2709/
ONTARIO WEST 1/2 12820 11810 11800 11700 13710. WAVES 3 TO 6 FEET
SUBSIDING TO 1 TO 3 FEET TODAY. WAVES 1 TO 3 FEET TONIGHT.
ONTARIO EAST 1/2 12830 11820 11810 12700 12810. WAVES 4 TO 7 FEET
SUBSIDING TO 1 TO 3 FEET, AND OCCASIONALLY AROUND 9 FEET TODAY.
WAVES 1 TO 3 FEET TONIGHT.
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