878  
FZUS61 KBUF 152002  
GLFLO  
 
OPEN LAKE FORECAST FOR LAKE ONTARIO  
NATIONAL WEATHER SERVICE BUFFALO NY  
402 PM EDT SUN JUN 15 2025  
 
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 30.2 INCH HIGH WILL REMAIN OFF THE NEW ENGLAND COAST  
TONIGHT. A FRONTAL BOUNDARY WILL REMAIN STALLED SOUTH OF THE LOWER  
GREAT LAKES THROUGH MONDAY AS A WEAK 29.9 INCH LOW MOVES FROM THE  
OHIO VALLEY TO THE MID ATLANTIC. ANOTHER 29.6 INCH LOW WILL THEN  
PUSH NORTHEAST ACROSS THE UPPER GREAT LAKES TUESDAY, FOLLOWED BY A  
29.5 INCH LOW FORECAST TO TRACK ACROSS THE CENTRAL GREAT LAKES AND  
QUEBEC WEDNESDAY THROUGH THURSDAY. A 30.2 INCH HIGH WILL MOVE INTO  
THE GREAT LAKES REGION FRIDAY.  
 
LOZ062-160300-  
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-  
402 PM EDT SUN JUN 15 2025  
   
TONIGHT
 
EAST WINDS 5 TO 10 KNOTS. WAVES 1 TO 2 FEET.    
MONDAY
 
EAST WINDS 5 TO 10 KNOTS BECOMING NORTHEAST. WAVES  
AROUND 1 FOOT.    
MONDAY NIGHT
 
EAST WINDS 5 TO 10 KNOTS BECOMING SOUTH. WAVES  
1 TO 2 FEET.    
TUESDAY
 
SOUTHEAST WINDS 10 KNOTS OR LESS BECOMING EAST. A  
CHANCE OF SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING  
SOUTHWEST. A CHANCE OF SHOWERS. WAVES 1 FOOT OR LESS.    
WEDNESDAY
 
SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 15 TO  
20 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS DURING THE DAY,  
THEN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS WEDNESDAY  
NIGHT. WAVES 2 FEET OR LESS BUILDING TO 2 TO 4 FEET.    
THURSDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST  
10 TO 15 KNOTS. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS  
DURING THE DAY, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS  
THURSDAY NIGHT. WAVES 2 TO 4 FEET.    
FRIDAY
 
NORTHWEST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST.  
WAVES 1 TO 3 FEET.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
LOZ063>065-160300-  
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE  
RIVER-  
402 PM EDT SUN JUN 15 2025  
   
TONIGHT
 
EAST WINDS 10 KNOTS OR LESS. WAVES 1 FOOT OR LESS.    
MONDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING EAST. WAVES  
2 FEET OR LESS.    
MONDAY NIGHT
 
SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES 2 FEET OR  
LESS.    
TUESDAY
 
SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS IN  
THE AFTERNOON. WAVES 2 FEET OR LESS.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS BECOMING SOUTH. A  
CHANCE OF SHOWERS. WAVES 1 TO 3 FEET.    
WEDNESDAY
 
SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTH. A  
CHANCE OF SHOWERS AND THUNDERSTORMS DURING THE DAY, THEN SHOWERS  
LIKELY WITH A CHANCE OF THUNDERSTORMS WEDNESDAY NIGHT. WAVES 1 TO  
3 FEET.    
THURSDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST. SHOWERS  
LIKELY WITH A CHANCE OF THUNDERSTORMS. WAVES 2 TO 4 FEET BUILDING  
TO 3 TO 5 FEET, THEN SUBSIDING TO 2 TO 4 FEET.    
FRIDAY
 
NORTHWEST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST.  
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
LOZ061-160300-  
MAFOR 1521/  
ONTARIO WEST 1/2 15200 12100. WAVES 2 FEET OR LESS.  
 
ONTARIO EAST 1/2 11100 13200 12300 11200 11100. WAVES 1 FOOT OR  
LESS.  
 

 
 
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