319
FZUS61 KBUF 070207
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
1007 PM EDT MON APR 6 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 29.9 INCH CLIPPER LOW WILL CROSS LAKE ONTARIO TONIGHT,
THEN WILL SLIDE OFF THE NEW ENGLAND COAST TUESDAY. A 30.6 INCH HIGH
WILL THEN BUILD FROM THE CENTRAL GREAT LAKES TUESDAY TO THE NEW
ENGLAND COASTLINE WEDNESDAY, BEFORE MOVING SOUTHEAST OF NOVA SCOTIA
THURSDAY. A COLD FRONT WILL CROSS THE LAKE FRIDAY, WITH A 30.5 INCH
HIGH THEN FORECAST TO BUILD EAST ACROSS THE GREAT LAKES SATURDAY.
LOZ062-070900-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
1007 PM EDT MON APR 6 2026
REST OF TONIGHT
WEST WINDS LESS THAN 10 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS
LATE THIS EVENING, THEN RAIN AND SNOW SHOWERS AFTER MIDNIGHT.
SNOW SHOWERS LATE. WAVES 2 FEET OR LESS BUILDING TO 3 TO 5 FEET.
TUESDAY
NORTHWEST WINDS TO 30 KNOTS DIMINISHING TO 15 TO
20 KNOTS. SNOW SHOWERS LIKELY EARLY, THEN A CHANCE OF SNOW
SHOWERS LATE IN THE MORNING. WAVES 5 TO 8 FEET SUBSIDING TO 2 TO
4 FEET. WAVES OCCASIONALLY AROUND 10 FEET.
TUESDAY NIGHT
NORTHWEST WINDS 15 TO 20 KNOTS BECOMING
SOUTHEAST AND DIMINISHING TO LESS THAN 10 KNOTS OVERNIGHT. WAVES
2 TO 4 FEET SUBSIDING TO 1 FOOT OR LESS.
WEDNESDAY
SOUTHEAST WINDS 10 KNOTS OR LESS BECOMING EAST 10 TO
15 KNOTS. WAVES 2 FEET OR LESS.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS BECOMING SOUTH 15 TO
20 KNOTS. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
THURSDAY
SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST. A
CHANCE OF SHOWERS THURSDAY NIGHT. WAVES 3 TO 6 FEET SUBSIDING TO
1 TO 3 FEET.
FRIDAY
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING NORTHWEST. A
CHANCE OF RAIN SHOWERS. WAVES 2 FEET OR LESS.
SATURDAY
NORTHWEST WINDS 10 KNOTS OR LESS BECOMING NORTHEAST.
WAVES 2 FEET OR LESS.
LOZ063>065-070900-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
1007 PM EDT MON APR 6 2026
REST OF TONIGHT
WEST WINDS 5 TO 10 KNOTS BECOMING NORTHWEST
AND INCREASING TO 15 TO 20 KNOTS. A CHANCE OF RAIN SHOWERS LATE
THIS EVENING, THEN RAIN AND SNOW SHOWERS AFTER MIDNIGHT. WAVES
1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
TUESDAY
NORTH WINDS TO 30 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. SNOW SHOWERS EARLY, THEN A CHANCE OF SNOW SHOWERS.
WAVES 3 TO 6 FEET BUILDING TO 5 TO 8 FEET, THEN SUBSIDING TO 3 TO
5 FEET. WAVES OCCASIONALLY AROUND 10 FEET.
TUESDAY NIGHT
WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
WEDNESDAY
SOUTHWEST WINDS 10 KNOTS OR LESS BECOMING EAST.
WAVES 2 FEET OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS BECOMING SOUTH
AND INCREASING TO 15 TO 25 KNOTS. WAVES 1 TO 3 FEET BUILDING TO
3 TO 6 FEET.
THURSDAY
SOUTH WINDS 15 TO 25 KNOTS. WAVES 3 TO 6 FEET.
FRIDAY
SOUTH WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES 2 TO 4 FEET SUBSIDING
TO 2 FEET OR LESS.
SATURDAY
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING EAST. WAVES
1 TO 3 FEET SUBSIDING TO 1 FOOT OR LESS.
LOZ061-070900-
MAFOR 0703/
ONTARIO WEST 1/2 11607 12637 11740 11730 12720 11710. WAVES 2
FEET OR LESS BUILDING TO 3 TO 5 FEET OVERNIGHT. WAVES 5 TO 8 FEET
SUBSIDING TO 2 TO 4 FEET, AND OCCASIONALLY AROUND 10 FEET
TUESDAY. WAVES 2 TO 4 FEET TUESDAY EVENING.
ONTARIO EAST 1/2 11600 11707 11737 11730 11830 11720 11620 11710.
A CHANCE OF RAIN SHOWERS LATE THIS EVENING. WAVES 2 FEET OR LESS
OVERNIGHT. WAVES 3 TO 6 FEET BUILDING TO 5 TO 8 FEET, THEN
SUBSIDING TO 3 TO 5 FEET, AND OCCASIONALLY AROUND 10 FEET
TUESDAY. WAVES 2 TO 4 FEET TUESDAY EVENING.
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