797  
FZUS61 KBUF 241028  
GLFLO  
 
OPEN LAKE FORECAST FOR LAKE ONTARIO  
NATIONAL WEATHER SERVICE BUFFALO NY  
628 AM EDT MON SEP 24 2018  
 
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 30.5 INCH HIGH OVER WESTERN QUEBEC THIS MORNING WILL  
SLIP TO ATLANTIC CANADA TONIGHT. MEANWHILE A 29.7 INCH LOW WILL  
TRACK FROM NEAR LAKE SUPERIOR THIS AFTERNOON TO JAMES BAY TUESDAY  
MORNING. THIS LOW WILL DRAG A COLD FRONT TOWARDS THE EASTERN GREAT  
LAKES TUESDAY, WITH A SURFACE WAVE OF 29.8 INCHES RIPPLING ALONG IT.  
THIS SURFACE WAVE WILL PASS WELL NORTH OF THE LAKE TUESDAY NIGHT,  
WHILE DRAGGING A COLD FRONT ACROSS THE LAKE WEDNESDAY. A 30.2 INCH  
AREA OF HIGH PRESSURE WILL THEN PUSH TOWARDS THE LAKE THURSDAY.  
 
LOZ062-241515-  
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-  
628 AM EDT MON SEP 24 2018  
   
TODAY
 
EAST WINDS 15 TO 25 KNOTS. WAVES 5 TO 8 FEET. WAVES  
OCCASIONALLY AROUND 10 FEET.    
TONIGHT
 
SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 30 KNOTS.  
SHOWERS LIKELY LATE IN THE EVENING. RAIN AFTER MIDNIGHT. WAVES  
3 TO 6 FEET BUILDING TO 4 TO 7 FEET. WAVES OCCASIONALLY AROUND  
9 FEET.    
TUESDAY
 
SOUTH WINDS TO 30 KNOTS BECOMING SOUTHWEST 15 TO  
25 KNOTS. RAIN IN THE MORNING, THEN SHOWERS LIKELY IN THE  
AFTERNOON. WAVES 5 TO 8 FEET SUBSIDING TO 2 TO 4 FEET. WAVES  
OCCASIONALLY AROUND 10 FEET.    
TUESDAY NIGHT
 
SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING SOUTH  
15 TO 20 KNOTS. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS  
AND THUNDERSTORMS LIKELY OVERNIGHT. SOME THUNDERSTORMS MAY  
PRODUCE GUSTY WINDS OVERNIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO  
4 FEET.    
WEDNESDAY
 
SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST  
AND DIMINISHING TO 5 TO 10 KNOTS. SHOWERS AND THUNDERSTORMS  
LIKELY DURING THE DAY. WAVES 3 TO 5 FEET BUILDING TO 4 TO 7 FEET,  
THEN SUBSIDING TO 1 TO 3 FEET. WAVES OCCASIONALLY AROUND 9 FEET.    
THURSDAY
 
NORTHEAST WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST  
10 TO 15 KNOTS. WAVES 2 FEET OR LESS.    
FRIDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST 10 TO  
15 KNOTS. A CHANCE OF SHOWERS DURING THE DAY. WAVES 2 TO 4 FEET  
BUILDING TO 3 TO 6 FEET, THEN SUBSIDING TO 2 TO 4 FEET.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
LOZ063>065-241515-  
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE  
RIVER-  
628 AM EDT MON SEP 24 2018  
   
TODAY
 
EAST WINDS 15 TO 25 KNOTS BECOMING SOUTHEAST. WAVES 4 TO  
7 FEET SUBSIDING TO 3 TO 6 FEET. WAVES OCCASIONALLY AROUND  
9 FEET.    
TONIGHT
 
SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 30 KNOTS.  
A CHANCE OF SHOWERS LATE IN THE EVENING. SHOWERS LIKELY AFTER  
MIDNIGHT, THEN RAIN LATE. WAVES 3 TO 6 FEET BUILDING TO 5 TO  
8 FEET. WAVES OCCASIONALLY AROUND 10 FEET.    
TUESDAY
 
SOUTHEAST WINDS TO 30 KNOTS BECOMING SOUTH 15 TO  
25 KNOTS. RAIN IN THE MORNING, THEN SHOWERS LIKELY IN THE  
AFTERNOON. WAVES 5 TO 9 FEET SUBSIDING TO 3 TO 6 FEET. WAVES  
OCCASIONALLY AROUND 11 FEET.    
TUESDAY NIGHT
 
SOUTH WINDS 15 TO 20 KNOTS. SHOWERS LIKELY IN  
THE EVENING, THEN A CHANCE OF SHOWERS OVERNIGHT. WAVES 2 TO  
4 FEET.    
WEDNESDAY
 
SOUTH WINDS 15 TO 25 KNOTS BECOMING NORTH AND  
DIMINISHING TO 10 TO 15 KNOTS. SHOWERS AND THUNDERSTORMS LIKELY  
DURING THE DAY, THEN A CHANCE OF SHOWERS WEDNESDAY NIGHT. WAVES  
3 TO 5 FEET BUILDING TO 5 TO 8 FEET, THEN SUBSIDING TO 2 TO  
4 FEET. WAVES OCCASIONALLY AROUND 10 FEET.    
THURSDAY
 
NORTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH. WAVES  
2 FEET OR LESS.    
FRIDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST 10 TO  
15 KNOTS. A CHANCE OF SHOWERS. WAVES 2 TO 4 FEET BUILDING TO 3 TO  
6 FEET, THEN SUBSIDING TO 2 TO 4 FEET.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
LOZ061-241515-  
MAFOR 2409/  
ONTARIO WEST 1/2 14230 11320 11330 11336 11346. WAVES 5 TO 8  
FEET, AND OCCASIONALLY AROUND 10 FEET TODAY. WAVES 3 TO 6 FEET  
BUILDING TO 5 TO 8 FEET, AND OCCASIONALLY AROUND 10 FEET TONIGHT.  
 
ONTARIO EAST 1/2 11130 12220 12320 12330 11346. WAVES 3 TO 6 FEET  
SUBSIDING TO 2 TO 4 FEET TODAY. WAVES 3 TO 6 FEET BUILDING TO 5  
TO 8 FEET, AND OCCASIONALLY AROUND 10 FEET TONIGHT.  
 

 
 
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