648
FZUS61 KBUF 172001
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
401 PM EDT THU APR 17 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 30.4 INCH HIGH ACROSS THE LAKE WILL MOVE EAST
ACROSS NEW ENGLAND TONIGHT. A 29.5 INCH LOW OVER WISCONSIN FRIDAY
WILL ADVANCE TO JUST NORTH OF THE WATERS SATURDAY, WITH ITS
ASSOCIATED COLD FRONT MOVING ACROSS THE LAKE FRIDAY NIGHT AND
SATURDAY. THIS BOUNDARY WILL THEN STALL OUT TO THE SOUTH OF THE LAKE
SUNDAY, MEANWHILE A 30.4 INCH HIGH WILL BUILD ACROSS LAKE SUPERIOR.
A 29.5 INCH LOW IS THEN FORECAST TO TRACK FROM MISSOURI REACHING THE
CENTRAL GREAT LAKES MONDAY.
LOZ062-180300-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
401 PM EDT THU APR 17 2025
TONIGHT
SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST. WAVES
1 FOOT OR LESS.
FRIDAY
SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST. A
CHANCE OF SHOWERS LATE IN THE MORNING. SHOWERS LIKELY EARLY IN
THE AFTERNOON, THEN A CHANCE OF SHOWERS LATE. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHWEST AND
INCREASING TO 15 TO 25 KNOTS OVERNIGHT. A CHANCE OF SHOWERS IN
THE EVENING, THEN SHOWERS WITH A CHANCE OF THUNDERSTORMS
OVERNIGHT. WAVES 2 FEET OR LESS BUILDING TO 3 TO 5 FEET.
SATURDAY
SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST. SHOWERS
WITH A CHANCE OF THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF
SHOWERS IN THE AFTERNOON. WAVES 3 TO 6 FEET.
SATURDAY NIGHT
WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST.
WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET.
SUNDAY
NORTHWEST WINDS 15 TO 20 KNOTS BECOMING EAST 10 TO
15 KNOTS. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
MONDAY
EAST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO
20 KNOTS. SHOWERS LIKELY. WAVES 3 TO 5 FEET.
TUESDAY
SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST AND
DIMINISHING TO AROUND 10 KNOTS. WAVES 3 TO 5 FEET SUBSIDING TO
2 TO 3 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ063>065-180300-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
401 PM EDT THU APR 17 2025
TONIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST.
WAVES 1 TO 3 FEET.
FRIDAY
SOUTHEAST WINDS 15 TO 20 KNOTS BECOMING SOUTH. A CHANCE
OF RAIN SHOWERS EARLY IN THE AFTERNOON. RAIN SHOWERS LIKELY LATE.
WAVES 1 TO 3 FEET.
FRIDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST
15 TO 20 KNOTS. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
WITH A CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 1 TO 3 FEET
BUILDING TO 2 TO 4 FEET.
SATURDAY
SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST. SHOWERS
WITH A CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS
LIKELY IN THE AFTERNOON. WAVES 3 TO 6 FEET.
SATURDAY NIGHT
WEST WINDS 15 TO 25 KNOTS. WAVES 3 TO 6 FEET.
SUNDAY
NORTHWEST WINDS 15 TO 20 KNOTS BECOMING EAST 5 TO
15 KNOTS. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
MONDAY
EAST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO
20 KNOTS. A CHANCE OF RAIN SHOWERS DURING THE DAY, THEN RAIN
SHOWERS LIKELY MONDAY NIGHT. WAVES 2 TO 4 FEET BUILDING TO 3 TO
5 FEET.
TUESDAY
SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST 10 TO
15 KNOTS. A CHANCE OF SHOWERS DURING THE DAY. WAVES 3 TO 6 FEET
SUBSIDING TO 2 TO 4 FEET.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
LOZ061-180300-
MAFOR 1721/
ONTARIO WEST 1/2 11500 12400 11300 12310 11410 11510. A CHANCE OF
SHOWERS FRIDAY. WAVES 1 FOOT OR LESS TONIGHT. WAVES 1 TO 3 FEET
FRIDAY.
ONTARIO EAST 1/2 11510 12400 11410 11310 11320 12420. A CHANCE OF
RAIN SHOWERS FRIDAY AFTERNOON. WAVES 1 TO 3 FEET.
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