716  
FZUS63 KDTX 231400  
GLFSC  
 
LAKE ST CLAIR FORECAST  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
1000 AM EDT FRI AUG 23 2019  
 
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 BROAD CANADIAN HIGH PRESSURE SYSTEM WILL BECOME  
CENTERED OVER THE NORTHERN GREAT LAKES TODAY WHILE STRENGTHENING  
TO 30.30 INCHES. THE EXPANSIVE HIGH WILL THEN MOVE ACROSS EASTERN  
ONTARIO ON SATURDAY BEFORE BECOMING CENTERED OVER THE CANADIAN  
MARITIMES ON SUNDAY.  
 
LCZ460-232000-  
LAKE ST CLAIR-  
1000 AM EDT FRI AUG 23 2019  
   
REST OF TODAY
 
NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST 15 TO  
20 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. A CHANCE OF  
WATERSPOUTS. WAVES 2 FEET OR LESS.   
TONIGHT
 
NORTHEAST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO 15  
KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES 1 TO 3  
FEET.   
SATURDAY
 
NORTHEAST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO 10  
KNOTS IN THE LATE MORNING AND AFTERNOON. SUNNY. WAVES 2 FEET OR  
LESS.   
SATURDAY NIGHT
 
NORTHEAST WINDS 10 TO 15 KNOTS BECOMING EAST 5 TO  
10 KNOTS AFTER MIDNIGHT. CLEAR. WAVES 2 FEET OR LESS.   
SUNDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. CLEAR. WAVES 2 FEET OR  
LESS.   
MONDAY
 
SOUTHEAST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY. A CHANCE OF  
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.   
TUESDAY
 
WEST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY. A CHANCE OF  
SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.  
 

 
 
AA  
 
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT  
WEATHER.GOV/DTX/GLFTABLESC  
 
GRAPHICAL MARINE FORECASTS ARE AVAILABLE AT WEATHER.GOV/GREATLAKES  
 
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