723  
FZUS53 KDTX 151356  
NSHDTX  
 
NEARSHORE MARINE FORECAST FOR MICHIGAN  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
956 AM EDT FRI AUG 15 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE  
 
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.  
 
LHZ422-152200-  
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-  
956 AM EDT FRI AUG 15 2025  
   
REST OF TODAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY SUNNY.  
WAVES 2 FEET OR LESS.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING SOUTH 10 TO  
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. CLEAR. WAVES 2 FEET  
OR LESS.    
SATURDAY
 
SOUTHWEST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO  
10 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN INCREASING  
TO 10 TO 15 KNOTS EARLY IN THE AFTERNOON. MOSTLY SUNNY UNTIL LATE  
AFTERNOON BECOMING PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL LATE AFTERNOON, THEN A CHANCE OF SHOWERS AND  
THUNDERSTORMS EARLY IN THE AFTERNOON. WAVES 2 FEET OR LESS.    
SATURDAY NIGHT
 
WEST WINDS 10 TO 15 KNOTS VEERING TO THE  
NORTHWEST AFTER MIDNIGHT. PARTLY CLOUDY. SHOWERS LIKELY AND A  
CHANCE OF THUNDERSTORMS UNTIL EARLY MORNING, THEN A CHANCE OF  
SHOWERS AFTER MIDNIGHT. WAVES 2 FEET OR LESS.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ421-152200-  
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER  
SAGINAW BAY-  
956 AM EDT FRI AUG 15 2025  
   
REST OF TODAY
 
SOUTH WINDS 5 TO 10 KNOTS BACKING TO THE  
SOUTHEAST LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 2 FEET OR  
LESS.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING SOUTH 10 TO  
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. CLEAR. WAVES 2 FEET  
OR LESS.    
SATURDAY
 
SOUTHWEST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO  
10 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN INCREASING  
TO 10 TO 15 KNOTS EARLY IN THE AFTERNOON. MOSTLY SUNNY WITH A  
SLIGHT CHANCE OF SHOWERS UNTIL LATE AFTERNOON, THEN PARTLY CLOUDY  
WITH A CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE  
AFTERNOON. WAVES 2 FEET OR LESS.    
SATURDAY NIGHT
 
WEST WINDS 10 TO 15 KNOTS VEERING TO THE  
NORTHWEST IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY.  
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. WAVES 2 FEET OR  
LESS.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ441-152200-  
PORT AUSTIN TO HARBOR BEACH MI-  
956 AM EDT FRI AUG 15 2025  
   
REST OF TODAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY SUNNY.  
WAVES 2 FEET OR LESS.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING SOUTH 10 TO  
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. CLEAR. WAVES 2 FEET  
OR LESS.    
SATURDAY
 
SOUTHWEST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO  
10 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY UNTIL  
LATE AFTERNOON, THEN PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS EARLY IN THE AFTERNOON. WAVES 2 FEET OR LESS.    
SATURDAY NIGHT
 
SOUTHWEST WINDS 5 TO 10 KNOTS VEERING TO THE  
NORTHWEST IN THE LATE EVENING AND EARLY MORNING, THEN INCREASING  
TO 10 TO 15 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY UNTIL EARLY  
MORNING BECOMING MOSTLY CLOUDY. SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. WAVES 2 FEET OR LESS.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ442-152200-  
HARBOR BEACH TO PORT SANILAC MI-  
956 AM EDT FRI AUG 15 2025  
   
REST OF TODAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY SUNNY.  
WAVES 2 FEET OR LESS.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS VEERING TO THE SOUTHWEST  
AFTER MIDNIGHT. CLEAR. WAVES 2 FEET OR LESS.    
SATURDAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS. MOSTLY SUNNY UNTIL  
LATE AFTERNOON, THEN PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS EARLY IN THE AFTERNOON. WAVES 2 FEET OR LESS.    
SATURDAY NIGHT
 
WEST WINDS 5 TO 10 KNOTS BECOMING NORTHWEST  
10 TO 15 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY. LIGHT SHOWERS  
LIKELY AND A CHANCE OF THUNDERSTORMS UNTIL EARLY MORNING, THEN A  
CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 2 FEET OR LESS.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ443-152200-  
PORT SANILAC TO PORT HURON MI-  
956 AM EDT FRI AUG 15 2025  
   
REST OF TODAY
 
LIGHT AND VARIABLE WINDS BECOMING EAST 5 TO  
10 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 2 FEET OR  
LESS.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS VEERING TO THE SOUTHWEST  
AFTER MIDNIGHT. CLEAR. WAVES 2 FEET OR LESS.    
SATURDAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS. MOSTLY SUNNY UNTIL  
LATE AFTERNOON BECOMING PARTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS EARLY IN THE AFTERNOON. WAVES 2 FEET OR LESS.    
SATURDAY NIGHT
 
WEST WINDS 5 TO 10 KNOTS VEERING TO THE  
NORTHWEST AFTER MIDNIGHT. MOSTLY CLOUDY EARLY IN THE EVENING  
BECOMING PARTLY CLOUDY. LIGHT SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS UNTIL EARLY MORNING, THEN A CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER MIDNIGHT. WAVES 2 FEET OR LESS.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LEZ444-152200-  
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-  
956 AM EDT FRI AUG 15 2025  
   
REST OF TODAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY SUNNY.  
WAVES 2 FEET OR LESS.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS VEERING TO THE SOUTH  
AFTER MIDNIGHT. CLEAR. WAVES 2 FEET OR LESS.    
SATURDAY
 
LIGHT AND VARIABLE WINDS BECOMING SOUTHWEST 5 TO  
10 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. A  
SLIGHT CHANCE OF. WAVES 2 FEET OR LESS.    
SATURDAY NIGHT
 
SOUTHWEST WINDS 5 TO 10 KNOTS VEERING TO THE  
WEST AFTER MIDNIGHT. PARTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE LATE EVENING AND OVERNIGHT. WAVES 2 FEET OR  
LESS.  
 
SEE LAKE ERIE OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 
THE WATER TEMPERATURE AT BELLE ISLE IS 79 DEGREES.  
 

 
 
TF  
 
YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE  
A WWW.WEATHER.GOV/GREATLAKES  
 
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