019  
FZUS61 KBUF 200917  
GLFLO  
 
OPEN LAKE FORECAST FOR LAKE ONTARIO  
NATIONAL WEATHER SERVICE BUFFALO NY  
417 AM 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 30.0 INCH CLIPPER LOW WILL MOVE SOUTHEASTWARD  
ACROSS THE OHIO VALLEY TODAY AND THEN DISSIPATE TONIGHT...AS A  
29.4 INCH SECONDARY LOW WILL DEVELOP WELL OFF THE NEW ENGLAND  
COAST. THIS SYSTEM WILL BE FOLLOWED BY A 30.7 INCH HIGH THAT WILL  
BUILD ACROSS ONTARIO AND THE UPPER GREAT LAKES SATURDAY, AND THEN  
ACROSS THE LOWER GREAT LAKES SUNDAY AND NEW ENGLAND MONDAY.  
 
LOZ062-201630-  
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-  
417 AM EST FRI DEC 20 2024  
   
TODAY  
EAST WINDS 15 TO 20 KNOTS BECOMING NORTHEAST. SNOW.  
WAVES 3 TO 6 FEET.    
TONIGHT  
NORTHEAST WINDS 15 TO 20 KNOTS BECOMING NORTH. SNOW IN  
THE EVENING, THEN A CHANCE OF LIGHT SNOW AFTER MIDNIGHT. WAVES  
3 TO 6 FEET.    
SATURDAY  
NORTH WINDS 15 TO 20 KNOTS BECOMING NORTHWEST. WAVES  
3 TO 5 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 SOUTH. WAVES  
2 FEET OR LESS.    
MONDAY  
SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO  
20 KNOTS. A CHANCE OF SNOW SHOWERS DURING THE DAY, THEN RAIN AND  
SNOW SHOWERS LIKELY MONDAY NIGHT. WAVES 1 TO 3 FEET.    
TUESDAY  
SOUTHWEST WINDS 5 TO 10 KNOTS. RAIN AND SNOW SHOWERS.  
WAVES 1 TO 3 FEET.  
 
 
 
LOZ063>065-201630-  
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE  
RIVER-  
417 AM EST FRI DEC 20 2024  
   
TODAY  
EAST WINDS 15 TO 20 KNOTS BECOMING NORTHEAST. LIGHT SNOW  
LIKELY EARLY, THEN BECOMING MORE WIDESPREAD SNOW FROM LATE  
MORNING ON. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET.    
TONIGHT  
NORTHEAST WINDS 15 TO 20 KNOTS BECOMING NORTH. SNOW  
TAPERING OFF LATE. WAVES 3 TO 6 FEET.    
SATURDAY  
NORTH WINDS 15 TO 20 KNOTS BECOMING NORTHWEST. A  
CHANCE OF SNOW SHOWERS. WAVES 3 TO 6 FEET.    
SATURDAY NIGHT  
NORTH WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO  
15 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FEET SUBSIDING  
TO 1 TO 3 FEET.    
SUNDAY  
NORTH WINDS 10 TO 15 KNOTS BECOMING LIGHT AND VARIABLE.  
A CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FEET.    
MONDAY  
SOUTH WINDS INCREASING TO 15 TO 20 KNOTS. SNOW AND RAIN  
SHOWERS LIKELY MONDAY NIGHT. WAVES BUILDING TO 3 TO 5 FEET.    
TUESDAY  
SOUTHWEST WINDS 10 TO 15 KNOTS. RAIN AND SNOW SHOWERS  
LIKELY. WAVES 1 TO 3 FEET.  
 
 
 
LOZ061-201630-  
MAFOR 2010/  
ONTARIO WEST 1/2 12227 13127 11827 12820. WAVES 2 TO 4 FEET  
BUILDING TO 3 TO 6 FEET TODAY. WAVES 3 TO 6 FEET TONIGHT.  
 
ONTARIO EAST 1/2 11210 11220 14127 11827 11820. WAVES 1 TO 3 FEET  
BUILDING TO 3 TO 5 FEET TODAY. WAVES 3 TO 6 FEET TONIGHT.  
 
 
 
JM/RSH  
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