986  
FZUS63 KDTX 220845  
GLFSC  
 
LAKE ST CLAIR FORECAST  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
345 AM EST SUN DEC 22 2024  
 
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
 
ARCTIC HIGH PRESSURE, 30.50 INCHES, TRACKS ACROSS THE  
GREAT LAKES SUNDAY. COMPACT LOW PRESSURE, 30.00 INCHES, THEN  
EJECTS OUT OF THE PLAINS INTO THE CENTRAL GREAT LAKES MONDAY.  
ANOTHER AREA OF HIGH PRESSURE IS QUICK TO FOLLOW TUESDAY.  
 
LCZ460-221645-  
LAKE ST CLAIR-  
345 AM EST SUN DEC 22 2024  
   
TODAY
 
LIGHT AND VARIABLE WINDS BECOMING SOUTH 5 TO 10 KNOTS IN  
THE AFTERNOON. MOSTLY SUNNY. WAVES 2 FEET OR LESS.   
TONIGHT
 
SOUTH WINDS 5 TO 10 KNOTS INCREASING TO 10 TO 15 KNOTS IN  
THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 2 FEET OR LESS.   
MONDAY
 
SOUTH WINDS 15 TO 20 KNOTS. SNOW IN THE AFTERNOON. WAVES 1  
TO 3 FEET.   
MONDAY NIGHT
 
SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST 5 TO 10  
KNOTS AFTER MIDNIGHT. CLOUDY. LIGHT SNOW WITH LIGHT RAIN LIKELY IN  
THE EVENING. WAVES 2 FEET OR LESS.   
TUESDAY
 
NORTHWEST WINDS 5 TO 10 KNOTS IN THE MORNING BECOMING  
LIGHT AND VARIABLE. MOSTLY CLOUDY. WAVES 2 FEET OR LESS.   
WEDNESDAY
 
EAST WINDS 5 TO 10 KNOTS. CLOUDY. WAVES 2 FEET OR LESS.   
THURSDAY
 
EAST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES 2 FEET OR  
LESS.  
 

 
 
DG  
 
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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