508
FZUS61 KBUF 211147
GLFLO
OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
647 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
TODAY 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
LATE THURSDAY NIGHT INTO FRIDAY MORNING. AT THE SAME TIME, A LARGE
31.1 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.
LOZ062-211600-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
647 AM EST WED JAN 21 2026
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...
TODAY
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.
TONIGHT
SOUTHWEST WINDS TO 30 KNOTS. SNOW SHOWERS THROUGH THE
EARLY OVERNIGHT, THEN A CHANCE OF SNOW SHOWERS LATE. 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
11 FEET BUILDING TO 10 TO 15 FEET. WAVES OCCASIONALLY AROUND
19 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 10 TO 14 FEET SUBSIDING TO 4 TO 7 FEET. WAVES OCCASIONALLY
AROUND 18 FEET.
SATURDAY
NORTHWEST WINDS 10 TO 15 KNOTS BECOMING NORTHEAST. A
CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FEET SUBSIDING TO 1 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>065-211600-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
647 AM EST WED JAN 21 2026
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...
TODAY
SOUTH WINDS TO 30 KNOTS. A CHANCE OF SNOW SHOWERS LATE
THIS MORNING. SNOW SHOWERS THIS AFTERNOON. WAVES 5 TO 9 FEET
BUILDING TO 7 TO 10 FEET. WAVES OCCASIONALLY AROUND 13 FEET.
TONIGHT
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 BUILDING TO 13 TO 18 FEET. WAVES OCCASIONALLY
AROUND 23 FEET.
THURSDAY NIGHT
WEST GALES TO 40 KNOTS DIMINISHING TO 35 KNOTS.
LAKE EFFECT SNOW SHOWERS. WAVES 14 TO 18 FEET. WAVES OCCASIONALLY
AROUND 23 FEET.
FRIDAY
WEST GALES TO 35 KNOTS BECOMING NORTHWEST AND
DIMINISHING TO 30 KNOTS. LAKE EFFECT SNOW SHOWERS. WAVES 13 TO
17 FEET SUBSIDING TO 7 TO 10 FEET. WAVES OCCASIONALLY AROUND
22 FEET.
SATURDAY
NORTHWEST WINDS 15 TO 20 KNOTS BECOMING NORTHEAST
10 TO 15 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FEET
SUBSIDING TO 1 TO 3 FEET.
SUNDAY
EAST WINDS 10 TO 15 KNOTS BECOMING NORTHEAST. A CHANCE
OF SNOW SHOWERS. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
LOZ061-211600-
MAFOR 2113 AMD/
ONTARIO WEST 1/2 11430 12447 11547 11540 11547 11540. WAVES 4 TO
7 FEET BUILDING TO 8 TO 11 FEET, AND OCCASIONALLY AROUND 14 FEET
TODAY. WAVES 8 TO 12 FEET, AND OCCASIONALLY AROUND 15 FEET
TONIGHT.
ONTARIO EAST 1/2 14440 13540. A CHANCE OF SNOW SHOWERS TODAY AND
THIS EVENING. WAVES 5 TO 9 FEET BUILDING TO 7 TO 10 FEET, AND
OCCASIONALLY AROUND 13 FEET TODAY. WAVES 7 TO 10 FEET BUILDING TO
9 TO 13 FEET, AND OCCASIONALLY AROUND 16 FEET TONIGHT.
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