105
FZUS61 KBUF 090902
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
402 AM EST TUE DEC 9 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 29.5 INCH SURFACE LOW WILL MOVE ACROSS THE UPPER GREAT
LAKES TUESDAY, THEN A STRONGER LOW AVERAGING 29.2 INCHES WILL
APPROACH THE REGION TUESDAY NIGHT AND POTENTIALLY MOVE NORTHWEST OF
THE LAKE WEDNESDAY. A 29.9 INCH HIGH IS EXPECTED TO MOVE INTO THE
GREAT LAKES REGION THURSDAY, FOLLOWED BY A 29.6 INCH LOW WHICH MAY
APPROACH THE LAKE FROM THE NORTHWEST LATE FRIDAY. 30.0 INCHES WILL
AVERAGE ACROSS THE LOWER GREAT LAKES REGION SATURDAY.
LOZ062-091600-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
402 AM EST TUE DEC 9 2025
TODAY
SOUTH WINDS 15 TO 25 KNOTS. LAKE EFFECT SNOW THIS
AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 3 TO 6 FEET.
TONIGHT
SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTH. LAKE
EFFECT SNOW SHOWERS IN THE EVENING, THEN SNOW LIKELY AFTER
MIDNIGHT. SNOW WITH A CHANCE OF RAIN LATE. WAVES 4 TO 7 FEET
SUBSIDING TO 3 TO 5 FEET. WAVES OCCASIONALLY AROUND 9 FEET.
WEDNESDAY
SOUTH WINDS 15 TO 25 KNOTS BECOMING WEST. RAIN AND
SNOW IN THE MORNING, THEN RAIN IN THE AFTERNOON. WAVES 2 TO
4 FEET BUILDING TO 3 TO 6 FEET.
WEDNESDAY NIGHT
NORTHWEST WINDS 20 TO 25 KNOTS BECOMING WEST.
A CHANCE OF SNOW SHOWERS AND RAIN IN THE EVENING, THEN A CHANCE
OF SNOW SHOWERS OVERNIGHT. WAVES 5 TO 7 FEET. WAVES OCCASIONALLY
AROUND 9 FEET.
THURSDAY
WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES 5 TO 8 FEET SUBSIDING TO 3 TO 6 FEET. WAVES OCCASIONALLY
AROUND 10 FEET.
FRIDAY
WEST WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST. A CHANCE
OF SNOW SHOWERS DURING THE DAY, THEN SNOW SHOWERS LIKELY FRIDAY
NIGHT. WAVES 3 TO 5 FEET.
SATURDAY
WEST WINDS TO 30 KNOTS DIMINISHING TO 15 TO 20 KNOTS.
SNOW SHOWERS LIKELY DURING THE DAY, THEN A CHANCE OF SNOW SHOWERS
SATURDAY NIGHT. WAVES 5 TO 8 FEET. WAVES OCCASIONALLY AROUND
10 FEET.
LOZ063-091600-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO SODUS BAY-
402 AM EST TUE DEC 9 2025
TODAY
SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW EARLY THIS
AFTERNOON. SNOW LIKELY LATE. WAVES 1 TO 3 FEET BUILDING TO 3 TO
5 FEET.
TONIGHT
SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW THROUGH
THE EARLY OVERNIGHT, THEN SNOW WITH RAIN LIKELY LATE. WAVES 3 TO
6 FEET.
WEDNESDAY
SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST. RAIN
AND SNOW IN THE MORNING, THEN RAIN IN THE AFTERNOON. WAVES 3 TO
6 FEET.
WEDNESDAY NIGHT
WEST WINDS 20 TO 25 KNOTS BECOMING NORTHWEST.
SNOW SHOWERS LIKELY WITH RAIN IN THE EVENING, THEN SNOW SHOWERS
LIKELY OVERNIGHT. WAVES 4 TO 7 FEET BUILDING TO 6 TO 9 FEET.
WAVES OCCASIONALLY AROUND 11 FEET.
THURSDAY
WEST WINDS TO 30 KNOTS BECOMING NORTHWEST. A CHANCE
OF SNOW SHOWERS DURING THE DAY, THEN SNOW SHOWERS LIKELY THURSDAY
NIGHT. WAVES 6 TO 10 FEET SUBSIDING TO 5 TO 8 FEET. WAVES
OCCASIONALLY AROUND 13 FEET.
FRIDAY
WEST WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST. SNOW
SHOWERS LIKELY. WAVES 3 TO 6 FEET SUBSIDING TO 2 TO 4 FEET.
SATURDAY
SOUTHWEST WINDS TO 30 KNOTS BECOMING WEST AND
DIMINISHING TO 15 TO 20 KNOTS. SNOW SHOWERS LIKELY DURING THE
DAY, THEN A CHANCE OF SNOW SHOWERS SATURDAY NIGHT. WAVES 5 TO
8 FEET BUILDING TO 7 TO 10 FEET, THEN SUBSIDING TO 5 TO 8 FEET.
WAVES OCCASIONALLY AROUND 13 FEET.
LOZ064-065-091600-
LAKE ONTARIO OPEN WATERS FROM SODUS BAY TO THE SAINT LAWRENCE
RIVER-
402 AM EST TUE DEC 9 2025
TODAY
SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 30 KNOTS. A
CHANCE OF SNOW SHOWERS EARLY. SNOW LIKELY LATE. WAVES 2 TO 4 FEET
BUILDING TO 4 TO 7 FEET. WAVES OCCASIONALLY AROUND 9 FEET.
TONIGHT
SOUTH WINDS TO 30 KNOTS. A CHANCE OF SNOW THROUGH THE
EARLY OVERNIGHT, THEN SNOW LIKELY WITH A CHANCE OF RAIN LATE.
WAVES 5 TO 8 FEET. WAVES OCCASIONALLY AROUND 10 FEET.
WEDNESDAY
SOUTH WINDS 20 TO 25 KNOTS BECOMING SOUTHWEST. RAIN
AND SNOW. WAVES 3 TO 6 FEET BUILDING TO 4 TO 7 FEET. WAVES
OCCASIONALLY AROUND 9 FEET.
WEDNESDAY NIGHT
WEST WINDS TO 30 KNOTS BECOMING NORTHWEST.
SNOW SHOWERS AND RAIN IN THE EVENING, THEN SNOW SHOWERS
OVERNIGHT. WAVES 5 TO 9 FEET. WAVES OCCASIONALLY AROUND 11 FEET.
THURSDAY
WEST WINDS TO 30 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. SNOW SHOWERS LIKELY DURING THE DAY, THEN A CHANCE OF
SNOW SHOWERS THURSDAY NIGHT. WAVES 7 TO 10 FEET SUBSIDING TO 5 TO
8 FEET. WAVES OCCASIONALLY AROUND 13 FEET.
FRIDAY
NORTHWEST WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST. A
CHANCE OF SNOW SHOWERS DURING THE DAY, THEN SNOW SHOWERS LIKELY
FRIDAY NIGHT. WAVES 4 TO 7 FEET SUBSIDING TO 2 TO 4 FEET. WAVES
OCCASIONALLY AROUND 9 FEET.
SATURDAY
SOUTHWEST WINDS TO 30 KNOTS BECOMING WEST AND
DIMINISHING TO 15 TO 20 KNOTS. SNOW SHOWERS LIKELY. WAVES 5 TO
8 FEET BUILDING TO 7 TO 10 FEET, THEN SUBSIDING TO 5 TO 8 FEET.
WAVES OCCASIONALLY AROUND 13 FEET.
LOZ061-091600-
MAFOR 0910/
ONTARIO WEST 1/2 11410 12420 11437 13537 11527. A CHANCE OF RAIN
OVERNIGHT. WAVES 1 TO 3 FEET BUILDING TO 3 TO 6 FEET TODAY. WAVES
4 TO 7 FEET SUBSIDING TO 3 TO 5 FEET, AND OCCASIONALLY AROUND 9
FEET TONIGHT.
ONTARIO EAST 1/2 11410 11420 12430 12440 11540 11430. A CHANCE OF
SNOW SHOWERS EARLY THIS MORNING. A CHANCE OF SNOW THIS AFTERNOON.
A CHANCE OF SNOW THIS EVENING, THEN A CHANCE OF RAIN OVERNIGHT.
WAVES 2 FEET OR LESS BUILDING TO 4 TO 7 FEET, AND OCCASIONALLY
AROUND 9 FEET TODAY. WAVES 5 TO 8 FEET, AND OCCASIONALLY AROUND
10 FEET TONIGHT.
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