032  
FZUS61 KBUF 210148  
GLFLO  
 
OPEN LAKE FORECAST FOR LAKE ONTARIO  
NATIONAL WEATHER SERVICE BUFFALO NY  
848 PM EST FRI DEC 20 2024  
 
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 29.4 INCH LOW WILL DEVELOP OFF THE NEW ENGLAND  
COAST OVERNIGHT. A 30.7 INCH HIGH WILL THEN BUILD ACROSS ONTARIO  
AND THE UPPER GREAT LAKES SATURDAY AND ACROSS THE LOWER GREAT  
LAKES SUNDAY. THIS HIGH WILL THEN MOVE ACROSS NEW ENGLAND AS A  
29.8 INCH LOW MOVES INTO THE CENTRAL GREAT LAKES MONDAY. THIS LOW  
WILL THEN MOVE ACROSS THE LOWER GREAT LAKES AND INTO NEW ENGLAND  
ON TUESDAY.  
 
LOZ062-211015-  
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-  
848 PM EST FRI DEC 20 2024  
   
OVERNIGHT
 
NORTH WINDS 15 TO 20 KNOTS. SNOW EARLY, THEN A  
CHANCE OF SNOW LATE. WAVES 3 TO 5 FEET.    
SATURDAY
 
NORTH WINDS 15 TO 20 KNOTS BECOMING NORTHWEST. A  
CHANCE OF SNOW EARLY. WAVES 2 TO 4 FEET.    
SATURDAY NIGHT
 
NORTHWEST WINDS 15 TO 20 KNOTS BECOMING NORTH  
10 TO 15 KNOTS. WAVES 2 TO 4 FEET.    
SUNDAY
 
NORTH WINDS 10 KNOTS OR LESS BECOMING WEST. WAVES  
2 FEET OR LESS.    
SUNDAY NIGHT
 
SOUTH WINDS 10 KNOTS OR LESS. WAVES 1 FOOT OR  
LESS.    
MONDAY
 
SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO  
20 KNOTS. A CHANCE OF RAIN AND SNOW SHOWERS DURING THE DAY, THEN  
RAIN MONDAY NIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.    
TUESDAY
 
WEST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST. A CHANCE  
OF RAIN SHOWERS DURING THE DAY. WAVES 1 TO 3 FEET.    
WEDNESDAY
 
EAST WINDS 5 TO 10 KNOTS. WAVES AROUND 1 FOOT.  
 

 
 
LOZ063>065-211015-  
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE  
RIVER-  
848 PM EST FRI DEC 20 2024  
   
OVERNIGHT
 
NORTHEAST WINDS 15 TO 20 KNOTS BECOMING NORTH.  
SNOW. WAVES 3 TO 6 FEET.    
SATURDAY
 
NORTH WINDS 15 TO 20 KNOTS BECOMING NORTHWEST. SNOW  
LIKELY EARLY, THEN A CHANCE OF SNOW FROM LATE MORNING ON. WAVES  
3 TO 6 FEET SUBSIDING TO 2 TO 4 FEET.    
SATURDAY NIGHT
 
NORTH WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO  
15 KNOTS. A CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES 3 TO 5 FEET  
SUBSIDING TO 1 TO 3 FEET.    
SUNDAY
 
NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST LESS THAN  
10 KNOTS. A CHANCE OF SNOW SHOWERS IN THE MORNING. WAVES 1 TO  
3 FEET SUBSIDING TO 1 FOOT OR LESS.    
SUNDAY NIGHT
 
NORTHWEST WINDS 10 KNOTS OR LESS BECOMING SOUTH  
10 TO 15 KNOTS. WAVES 2 FEET OR LESS.    
MONDAY
 
SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS  
DURING THE DAY, THEN SNOW AND RAIN LIKELY MONDAY NIGHT. WAVES  
1 TO 3 FEET BUILDING TO 3 TO 5 FEET.    
TUESDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING NORTHEAST 5 TO  
15 KNOTS. RAIN AND SNOW SHOWERS LIKELY DURING THE DAY, THEN A  
CHANCE OF SNOW SHOWERS TUESDAY NIGHT. WAVES 2 TO 4 FEET SUBSIDING  
TO 1 TO 3 FEET.    
WEDNESDAY
 
NORTHEAST WINDS 5 TO 10 KNOTS BECOMING EAST. WAVES  
2 FEET OR LESS.  
 

 
 
LOZ061-211015-  
MAFOR 2104/  
ONTARIO WEST 1/2 14820 14720. A CHANCE OF SNOW OVERNIGHT AND  
SATURDAY MORNING. WAVES 3 TO 5 FEET.  
 
ONTARIO EAST 1/2 12827 13820 12720 11820. WAVES 3 TO 6 FEET  
OVERNIGHT. WAVES 3 TO 6 FEET SUBSIDING TO 2 TO 4 FEET SATURDAY.  
WAVES 3 TO 5 FEET SATURDAY EVENING.  
 

 
 
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