962
FZUS61 KBUF 212002
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
402 PM EDT THU AUG 21 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
HURRICANE ERIN WILL CURVE NORTHEAST TONIGHT, WITH THE
CENTER OF THE STORM REMAINING WELL OFF MID ATLANTIC COASTLINE. A
30.1 INCH HIGH WILL THEN 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.
LOZ062-220300-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
402 PM EDT THU AUG 21 2025
TONIGHT
NORTHEAST WINDS 10 KNOTS OR LESS BECOMING NORTH. WAVES
1 TO 3 FEET SUBSIDING TO 1 FOOT OR LESS.
FRIDAY
NORTHWEST WINDS LESS THAN 10 KNOTS. WAVES 1 FOOT OR
LESS.
FRIDAY NIGHT
SOUTH WINDS 10 KNOTS OR LESS. 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
WITH A CHANCE OF THUNDERSTORMS. WAVES 1 TO 2 FEET.
SUNDAY
SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST. SHOWERS
LIKELY DURING THE DAY. WAVES 1 TO 2 FEET.
MONDAY
WEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS.
A CHANCE OF SHOWERS. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET.
TUESDAY
WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS. A CHANCE OF SHOWERS. WAVES 3 TO 5 FEET SUBSIDING TO
2 TO 4 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ063-220300-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO SODUS BAY-
402 PM EDT THU AUG 21 2025
TONIGHT
NORTH WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR LESS.
FRIDAY
NORTH WINDS 5 TO 10 KNOTS BECOMING LIGHT AND VARIABLE.
WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WINDS 10 KNOTS OR LESS BECOMING SOUTH.
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.
SHOWERS WITH A CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FEET.
SUNDAY
SOUTHWEST WINDS 5 TO 15 KNOTS. SHOWERS DURING THE DAY,
THEN A CHANCE OF SHOWERS 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 3 TO 5 FEET.
TUESDAY
WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST. A CHANCE
OF SHOWERS. WAVES 3 TO 5 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ064-065-220300-
LAKE ONTARIO OPEN WATERS FROM SODUS BAY TO THE SAINT LAWRENCE
RIVER-
402 PM EDT THU AUG 21 2025
TONIGHT
NORTH WINDS 5 TO 10 KNOTS BECOMING NORTHEAST. WAVES
1 FOOT OR LESS.
FRIDAY
NORTHEAST WINDS LESS THAN 10 KNOTS BECOMING WEST. WAVES
1 FOOT OR LESS.
FRIDAY NIGHT
WEST 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 5 TO 15 KNOTS INCREASING TO 15 TO
20 KNOTS. SHOWERS WITH A CHANCE OF THUNDERSTORMS. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET.
SUNDAY
SOUTH WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS. SHOWERS WITH A CHANCE OF THUNDERSTORMS. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 3 FEET.
MONDAY
SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST 15 TO
20 KNOTS. A CHANCE OF SHOWERS. WAVES 1 TO 3 FEET BUILDING TO 3 TO
5 FEET.
TUESDAY
WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS. A CHANCE OF SHOWERS. WAVES 3 TO 5 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ061-220300-
MAFOR 2121/
ONTARIO WEST 1/2 11100 14800 11700 12600. WAVES 1 TO 3 FEET
SUBSIDING TO 1 FOOT OR LESS TONIGHT. WAVES 1 FOOT OR LESS FRIDAY.
ONTARIO EAST 1/2 11800 11700 11800 13100 11700 11600. WAVES 2
FEET OR LESS.
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