052
FZUS61 KBUF 210604
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
104 AM EST WED JAN 21 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 29.8 INCH LOW WILL MOVE FROM THE UPPER GREAT LAKES
WEDNESDAY TO CENTRAL QUEBEC THROUGH THURSDAY...THEN TO THE CANADIAN
MARITIMES FRIDAY. THIS LOW WILL PUSH AN ARCTIC COLD FRONT ACROSS THE
LAKE THURSDAY MORNING...FOLLOWED BY A REINFORCING SECONDARY FRONT
FRIDAY. AT THE SAME TIME...A LARGE 31.0 INCH HIGH WILL BUILD FROM
NORTHWESTERN CANADA TO THE NORTHERN PLAINS STATES...WITH THE HIGH
THEN WEAKENING TO 30.7 INCHES AS IT SLIDES EASTWARD ACROSS THE GREAT
LAKES AND NEW ENGLAND OVER THE WEEKEND.
LOZ062-211000-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
104 AM EST WED JAN 21 2026
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...
OVERNIGHT
SOUTHWEST WINDS TO 30 KNOTS. WAVES 6 TO
10 FEET. WAVES OCCASIONALLY AROUND 13 FEET.
WEDNESDAY
SOUTH WINDS TO 30 KNOTS BECOMING SOUTHWEST. SNOW
SHOWERS FROM LATE MORNING ON. WAVES 4 TO 7 FEET BUILDING TO 8 TO
11 FEET. WAVES OCCASIONALLY AROUND 14 FEET.
WEDNESDAY NIGHT
SOUTHWEST WINDS TO 30 KNOTS. SNOW SHOWERS.
WAVES 8 TO 11 FEET. WAVES OCCASIONALLY AROUND 14 FEET.
THURSDAY
SOUTHWEST WINDS TO 30 KNOTS BECOMING WEST AND
INCREASING TO 40 KNOT GALES. A CHANCE OF SNOW SHOWERS. WAVES 8 TO
12 FEET BUILDING TO 10 TO 13 FEET. WAVES OCCASIONALLY AROUND
16 FEET.
THURSDAY NIGHT
WEST GALES TO 35 KNOTS. A CHANCE OF SNOW
SHOWERS IN THE EVENING, THEN LAKE EFFECT SNOW SHOWERS LIKELY
OVERNIGHT. WAVES 10 TO 14 FEET. WAVES OCCASIONALLY AROUND
18 FEET.
FRIDAY
WEST GALES TO 35 KNOTS BECOMING NORTHWEST AND
DIMINISHING TO 15 TO 20 KNOTS. LAKE EFFECT SNOW SHOWERS LIKELY.
WAVES 9 TO 13 FEET SUBSIDING TO 4 TO 7 FEET. WAVES OCCASIONALLY
AROUND 16 FEET.
SATURDAY
NORTHWEST WINDS 10 TO 15 KNOTS BECOMING NORTHEAST. A
CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO
3 FEET.
SUNDAY
EAST WINDS 15 TO 20 KNOTS BECOMING NORTH 10 TO
15 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FEET.
LOZ063>065-211000-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
104 AM EST WED JAN 21 2026
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...
OVERNIGHT
SOUTHWEST WINDS TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 7 TO 10 FEET. WAVES OCCASIONALLY AROUND 13 FEET.
WEDNESDAY
SOUTH WINDS TO 30 KNOTS. A CHANCE OF SNOW SHOWERS
LATE IN THE MORNING. SNOW SHOWERS IN THE AFTERNOON. WAVES 5 TO
9 FEET BUILDING TO 7 TO 10 FEET. WAVES OCCASIONALLY AROUND
13 FEET.
WEDNESDAY NIGHT
SOUTH WINDS TO 30 KNOTS BECOMING SOUTHWEST.
SNOW SHOWERS LIKELY. WAVES 7 TO 10 FEET BUILDING TO 9 TO 13 FEET.
WAVES OCCASIONALLY AROUND 16 FEET.
THURSDAY
SOUTHWEST GALES TO 35 KNOTS BECOMING WEST TO
40 KNOTS. A CHANCE OF LAKE EFFECT SNOW SHOWERS IN THE MORNING,
THEN LAKE EFFECT SNOW SHOWERS LIKELY IN THE AFTERNOON. WAVES
10 TO 15 FEET. WAVES OCCASIONALLY AROUND 19 FEET.
THURSDAY NIGHT
WEST GALES TO 40 KNOTS DIMINISHING TO 35 KNOTS.
LAKE EFFECT SNOW SHOWERS. WAVES 11 TO 15 FEET. WAVES OCCASIONALLY
AROUND 19 FEET.
FRIDAY
WEST GALES TO 35 KNOTS BECOMING NORTHWEST AND
DIMINISHING TO 30 KNOTS. LAKE EFFECT SNOW SHOWERS. WAVES 10 TO
15 FEET SUBSIDING TO 7 TO 10 FEET. WAVES OCCASIONALLY AROUND
19 FEET.
SATURDAY
NORTHWEST WINDS 15 TO 20 KNOTS BECOMING NORTHEAST
10 TO 15 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 6 FEET
SUBSIDING TO 2 TO 4 FEET.
SUNDAY
EAST WINDS 10 TO 15 KNOTS BECOMING NORTHEAST. A CHANCE
OF SNOW SHOWERS. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET.
LOZ061-211000-
MAFOR 2107 AMD/
ONTARIO WEST 1/2 11540 11530 11430 12447 11547 11540. WAVES 7 TO
10 FEET, AND OCCASIONALLY AROUND 13 FEET OVERNIGHT. WAVES 4 TO 7
FEET BUILDING TO 8 TO 11 FEET, AND OCCASIONALLY AROUND 14 FEET
WEDNESDAY. WAVES 8 TO 11 FEET, AND OCCASIONALLY AROUND 14 FEET
WEDNESDAY EVENING.
ONTARIO EAST 1/2 11540 11530 14440 11540. A CHANCE OF SNOW
SHOWERS. WAVES 7 TO 10 FEET, AND OCCASIONALLY AROUND 13 FEET
OVERNIGHT. WAVES 5 TO 9 FEET BUILDING TO 7 TO 10 FEET, AND
OCCASIONALLY AROUND 13 FEET WEDNESDAY. WAVES 7 TO 10 FEET, AND
OCCASIONALLY AROUND 13 FEET WEDNESDAY EVENING.
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