276  
FZUS61 KBUF 132055  
GLFLO  
 
OPEN LAKE FORECAST FOR LAKE ONTARIO  
NATIONAL WEATHER SERVICE BUFFALO NY  
455 PM EDT MON JUL 13 2020  
 
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 LARGE 29.9 INCH HIGH CENTERED OVER THE UPPER GREAT  
LAKES WILL GRADUALLY BUILD ACROSS ALL OF THE GREAT LAKES REGION  
THROUGH TUESDAY. THE HIGH WILL CROSS NEW ENGLAND THE SAINT  
LAWRENCE VALLEY ON WEDNESDAY. A 29.8 INCH TROUGH OF LOW PRESSURE  
WILL THEN TRACK ACROSS THE LOWER GREAT LAKES ON THURSDAY.  
 
LOZ062-140315-  
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-  
455 PM EDT MON JUL 13 2020  
   
TONIGHT
 
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH. A CHANCE  
OF SHOWERS LATE. WAVES 1 TO 3 FEET.    
TUESDAY
 
NORTH WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST. WAVES  
1 FOOT OR LESS.    
TUESDAY NIGHT
 
SOUTHWEST WINDS 10 KNOTS OR LESS BECOMING  
SOUTHEAST. WAVES 1 FOOT OR LESS.    
WEDNESDAY
 
SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST. WAVES  
2 FEET OR LESS.    
WEDNESDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS BECOMING SOUTH.  
WAVES 1 TO 3 FEET.    
THURSDAY
 
SOUTH WINDS 5 TO 15 KNOTS BECOMING WEST. SHOWERS  
LIKELY DURING THE DAY, THEN A CHANCE OF SHOWERS THURSDAY NIGHT.  
WAVES 1 TO 3 FEET SUBSIDING TO 1 FOOT OR LESS.    
FRIDAY
 
WEST WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST. WAVES  
1 FOOT OR LESS.    
SATURDAY
 
SOUTHWEST WINDS 10 KNOTS OR LESS. WAVES 1 FOOT OR  
LESS.  
 

 
 
LOZ063>065-140315-  
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE  
RIVER-  
455 PM EDT MON JUL 13 2020  
   
TONIGHT
 
WEST WINDS 5 TO 15 KNOTS BECOMING NORTH. A CHANCE OF  
SHOWERS AND THUNDERSTORMS EARLY, THEN A CHANCE OF SHOWERS FROM  
LATE EVENING ON. WAVES 1 TO 3 FEET.    
TUESDAY
 
NORTH WINDS 5 TO 10 KNOTS BECOMING WEST. A CHANCE OF  
SHOWERS IN THE MORNING. WAVES 2 FEET OR LESS.    
TUESDAY NIGHT
 
WEST WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST.  
WAVES 1 FOOT OR LESS.    
WEDNESDAY
 
SOUTHEAST WINDS 10 KNOTS OR LESS BECOMING EAST 10 TO  
15 KNOTS. WAVES 2 FEET OR LESS.    
WEDNESDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS BECOMING SOUTH 15 TO  
20 KNOTS. WAVES 1 TO 3 FEET.    
THURSDAY
 
SOUTH WINDS 15 TO 20 KNOTS BECOMING WEST 5 TO  
15 KNOTS. A CHANCE OF SHOWERS DURING THE DAY, THEN A CHANCE OF  
SHOWERS AND THUNDERSTORMS THURSDAY NIGHT. WAVES 2 TO 4 FEET  
SUBSIDING TO 1 TO 3 FEET.    
FRIDAY
 
WEST WINDS 5 TO 10 KNOTS BECOMING SOUTHWEST. WAVES  
1 FOOT OR LESS.    
SATURDAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING SOUTH. WAVES  
1 FOOT OR LESS.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
LOZ061-140315-  
MAFOR 1321/  
ONTARIO WEST 1/2 13710 12800 11700 12600. WAVES 1 TO 3 FEET  
TONIGHT. WAVES 1 FOOT OR LESS TUESDAY.  
 
ONTARIO EAST 1/2 11610 11710 11700 13800 11700 11600. A CHANCE OF  
SHOWERS AND THUNDERSTORMS THIS EVENING, THEN A CHANCE OF SHOWERS  
OVERNIGHT. WAVES 1 TO 3 FEET TONIGHT. WAVES 2 FEET OR LESS  
TUESDAY.  
 

 
 
JLA  
 
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