002  
FZUS63 KDTX 201340  
GLFSC  
 
LAKE ST CLAIR FORECAST  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
940 AM EDT SUN MAY 20 2018  
 
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
 
HIGH PRESSURE, 30.20 INCHES, WILL MOVE OVER LAKE HURON  
TODAY AND PERSIST INTO MONDAY. WEAK LOW PRESSURE WILL TRACK ALONG  
THE SOUTHERN MICHIGAN BORDER MONDAY NIGHT, WITH HIGH PRESSURE  
RETURNING FOR THE MID WEEK PERIOD.  
 
LCZ460-202000-  
LAKE ST CLAIR-  
940 AM EDT SUN MAY 20 2018  
   
REST OF TODAY
 
LIGHT AND VARIABLE WINDS BECOMING NORTHEAST 5 TO 10  
KNOTS IN THE AFTERNOON. MOSTLY CLOUDY. WAVES 2 FEET OR LESS.   
TONIGHT
 
NORTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR  
LESS.   
MONDAY
 
EAST WINDS 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 2 FEET OR  
LESS.   
MONDAY NIGHT
 
EAST WINDS 5 TO 10 KNOTS UNTIL EARLY MORNING  
BECOMING LIGHT AND VARIABLE. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS  
AND THUNDERSTORMS. WAVES 2 FEET OR LESS.   
TUESDAY
 
LIGHT AND VARIABLE WINDS. MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING...THEN PARTLY CLOUDY.  
WAVES 2 FEET OR LESS.   
WEDNESDAY
 
LIGHT AND VARIABLE WINDS. MOSTLY CLEAR. WAVES NEARLY  
CALM.   
THURSDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2  
FEET OR LESS.  
 

 
 
IRL  
 
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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