474  
FZUS53 KDTX 260805  
NSHDTX  
 
NEARSHORE MARINE FORECAST FOR MICHIGAN  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
405 AM EDT WED AUG 26 2026  
 
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.  
 
LHZ422-261615-  
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-  
405 AM EDT WED AUG 26 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING  
THROUGH THIS EVENING...  
   
TODAY
 
SOUTH WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS  
IN THE LATE MORNING AND AFTERNOON. PARTLY CLOUDY. A CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. A CHANCE OF  
WATERSPOUTS IN THE AFTERNOON. WAVES 1 TO 3 FEET.    
TONIGHT
 
SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST 10 TO  
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR. A  
CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING, THEN A  
CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE  
LATE EVENING AND EARLY MORNING. A SLIGHT CHANCE OF WATERSPOUTS  
UNTIL EARLY MORNING. WAVES 1 TO 3 FEET.    
THURSDAY
 
NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY SUNNY. WAVES  
2 FEET OR LESS.    
THURSDAY NIGHT
 
NORTH WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. WAVES  
2 FEET OR LESS.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ421-261615-  
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER  
SAGINAW BAY-  
405 AM EDT WED AUG 26 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING  
THROUGH THIS EVENING...  
   
TODAY
 
SOUTH WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS  
IN THE LATE MORNING AND AFTERNOON. PARTLY CLOUDY. A CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. A CHANCE OF  
WATERSPOUTS IN THE AFTERNOON. WAVES 2 TO 4 FEET.    
TONIGHT
 
SOUTH WINDS 15 TO 20 KNOTS BECOMING WEST 10 TO  
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. A  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL EARLY MORNING. A CHANCE  
OF WATERSPOUTS UNTIL EARLY MORNING. WAVES 1 TO 3 FEET.    
THURSDAY
 
WEST WINDS 10 TO 15 KNOTS BECOMING NORTHWEST 5 TO  
10 KNOTS EARLY IN THE AFTERNOON. MOSTLY SUNNY EARLY IN THE  
MORNING BECOMING PARTLY CLOUDY. WAVES 2 FEET OR LESS.    
THURSDAY NIGHT
 
NORTH WINDS 10 TO 15 KNOTS. PARTLY CLOUDY.  
WAVES 1 TO 3 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ441-261615-  
PORT AUSTIN TO HARBOR BEACH MI-  
405 AM EDT WED AUG 26 2026  
   
TODAY
 
SOUTH WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS  
LATE IN THE AFTERNOON. PARTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. A CHANCE OF WATERSPOUTS IN THE  
AFTERNOON. WAVES 1 TO 3 FEET.    
TONIGHT
 
SOUTHWEST WINDS 10 TO 15 KNOTS VEERING TO THE WEST  
AFTER MIDNIGHT. MOSTLY CLOUDY EARLY IN THE EVENING BECOMING  
PARTLY CLOUDY. A CHANCE OF WATERSPOUTS UNTIL EARLY MORNING.  
SHOWERS LIKELY IN THE EVENING. A CHANCE OF THUNDERSTORMS. A  
CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.    
THURSDAY
 
NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY SUNNY EARLY IN  
THE MORNING BECOMING PARTLY CLOUDY. WAVES 2 FEET OR LESS.    
THURSDAY NIGHT
 
NORTH WINDS 10 TO 15 KNOTS. PARTLY CLOUDY.  
WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN THE LATE EVENING AND  
OVERNIGHT.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ442-261615-  
HARBOR BEACH TO PORT SANILAC MI-  
405 AM EDT WED AUG 26 2026  
   
TODAY
 
SOUTH WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. A CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. A SLIGHT CHANCE OF  
WATERSPOUTS IN THE AFTERNOON. WAVES 1 TO 3 FEET.    
TONIGHT
 
SOUTHWEST WINDS 10 TO 15 KNOTS VEERING TO THE WEST  
AFTER MIDNIGHT. MOSTLY CLOUDY EARLY IN THE EVENING BECOMING  
PARTLY CLOUDY. A CHANCE OF WATERSPOUTS UNTIL EARLY MORNING. LIGHT  
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS UNTIL EARLY MORNING,  
THEN A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 TO  
3 FEET.    
THURSDAY
 
NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY SUNNY EARLY IN  
THE MORNING BECOMING PARTLY CLOUDY. WAVES 2 FEET OR LESS.    
THURSDAY NIGHT
 
NORTH WINDS 10 TO 15 KNOTS. PARTLY CLOUDY.  
WAVES 1 TO 3 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ443-261615-  
PORT SANILAC TO PORT HURON MI-  
405 AM EDT WED AUG 26 2026  
   
TODAY
 
SOUTH WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS  
LATE IN THE AFTERNOON. PARTLY CLOUDY. WAVES 1 TO 3 FEET.    
TONIGHT
 
SOUTH WINDS 10 TO 15 KNOTS VEERING TO THE WEST AFTER  
MIDNIGHT. PARTLY CLOUDY. A CHANCE OF WATERSPOUTS EARLY IN THE  
EVENING. A SLIGHT CHANCE OF WATERSPOUTS IN THE LATE EVENING AND  
EARLY MORNING. LIGHT SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. WAVES 1 TO 3 FEET.    
THURSDAY
 
WEST WINDS 10 TO 15 KNOTS BECOMING NORTHWEST 5 TO  
10 KNOTS EARLY IN THE AFTERNOON. PARTLY CLOUDY UNTIL LATE  
AFTERNOON BECOMING MOSTLY SUNNY. WAVES 2 FEET OR LESS.    
THURSDAY NIGHT
 
NORTH WINDS 10 TO 15 KNOTS. PARTLY CLOUDY.  
WAVES 1 TO 3 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LEZ444-261615-  
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-  
405 AM EDT WED AUG 26 2026  
   
TODAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING SOUTH 10 TO  
15 KNOTS IN THE AFTERNOON. PARTLY CLOUDY. A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 2 FEET OR LESS.   
TONIGHT
 
SOUTHWEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. LIGHT  
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS EARLY IN THE  
EVENING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE LATE  
EVENING AND EARLY MORNING. A SLIGHT CHANCE OF WATERSPOUTS UNTIL  
EARLY MORNING. WAVES 2 FEET OR LESS.    
THURSDAY
 
WEST WINDS 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES 2 FEET  
OR LESS.    
THURSDAY NIGHT
 
NORTHWEST WINDS 5 TO 10 KNOTS BECOMING NORTH  
10 TO 15 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR  
LESS.  
 
SEE LAKE ERIE OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 
THE WATER TEMPERATURE AT BELLE ISLE IS 71 DEGREES.  
 

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