872  
FZUS53 KDTX 301353  
NSHDTX  
 
NEARSHORE MARINE FORECAST FOR MICHIGAN  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
953 AM EDT FRI MAY 30 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.  
 
LHZ422-302200-  
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-  
953 AM EDT FRI MAY 30 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH  
SATURDAY AFTERNOON...  
   
REST OF TODAY
 
WEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO  
20 KNOTS IN THE AFTERNOON. MOSTLY SUNNY LATE IN THE MORNING  
BECOMING PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. WAVES 1 TO 3 FEET.    
TONIGHT
 
WEST WINDS 10 TO 15 KNOTS BECOMING NORTH 15 TO  
20 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY.  
SCATTERED SHOWERS AND THUNDERSTORMS IN THE EVENING. WAVES 1 TO  
3 FEET BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.    
SATURDAY
 
NORTH WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO  
15 KNOTS EARLY IN THE AFTERNOON. SUNNY. WAVES 2 TO 4 FEET  
SUBSIDING TO 1 TO 3 FEET IN THE LATE MORNING AND AFTERNOON.    
SATURDAY NIGHT
 
NORTHWEST WINDS 10 TO 15 KNOTS. CLEAR. WAVES  
1 TO 3 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ421-302200-  
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER  
SAGINAW BAY-  
953 AM EDT FRI MAY 30 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH  
SATURDAY AFTERNOON...  
   
REST OF TODAY
 
SOUTHWEST WINDS 10 TO 15 KNOTS VEERING TO THE  
NORTHWEST LATE IN THE AFTERNOON. MOSTLY SUNNY LATE IN THE  
MORNING, THEN MOSTLY CLOUDY WITH SCATTERED SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 3 FEET.    
TONIGHT
 
WEST WINDS 10 TO 15 KNOTS BECOMING NORTHWEST 15 TO  
20 KNOTS IN THE LATE EVENING AND EARLY MORNING, THEN BECOMING  
NORTH 20 TO 25 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. SCATTERED  
SHOWERS AND THUNDERSTORMS IN THE EVENING. WAVES 1 TO 3 FEET  
BUILDING TO 3 TO 5 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY AROUND  
7 FEET.    
SATURDAY
 
NORTH WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO  
15 KNOTS EARLY IN THE AFTERNOON. SUNNY. WAVES 3 TO 5 FEET. WAVES  
OCCASIONALLY AROUND 7 FEET.    
SATURDAY NIGHT
 
NORTHWEST WINDS 10 TO 15 KNOTS. CLEAR. WAVES  
1 TO 3 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ441-302200-  
PORT AUSTIN TO HARBOR BEACH MI-  
953 AM EDT FRI MAY 30 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH  
SATURDAY AFTERNOON...  
   
REST OF TODAY
 
WEST WINDS 10 TO 15 KNOTS VEERING TO THE  
NORTHWEST LATE IN THE AFTERNOON. MOSTLY SUNNY LATE IN THE  
MORNING, THEN MOSTLY CLOUDY WITH SCATTERED SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 3 FEET.    
TONIGHT
 
NORTHWEST WINDS 5 TO 10 KNOTS BECOMING NORTH 15 TO  
20 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY WITH  
SCATTERED SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN PARTLY  
CLOUDY AFTER MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET  
AFTER MIDNIGHT. WAVES OCCASIONALLY AROUND 7 FEET.    
SATURDAY
 
NORTH WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO  
15 KNOTS EARLY IN THE AFTERNOON. SUNNY. WAVES 3 TO 5 FEET. WAVES  
OCCASIONALLY AROUND 7 FEET.    
SATURDAY NIGHT
 
NORTHWEST WINDS 10 TO 15 KNOTS. CLEAR. WAVES  
1 TO 3 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ442-302200-  
HARBOR BEACH TO PORT SANILAC MI-  
953 AM EDT FRI MAY 30 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH  
SATURDAY AFTERNOON...  
   
REST OF TODAY
 
WEST WINDS 5 TO 10 KNOTS VEERING TO THE  
NORTHWEST LATE IN THE AFTERNOON. MOSTLY SUNNY LATE IN THE MORNING  
BECOMING PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. WAVES 2 FEET OR LESS.    
TONIGHT
 
NORTHWEST WINDS 5 TO 10 KNOTS INCREASING TO 10 TO  
15 KNOTS IN THE LATE EVENING AND EARLY MORNING, THEN BECOMING  
NORTH 15 TO 20 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY WITH SCATTERED  
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
AFTER MIDNIGHT. WAVES 2 FEET OR LESS BUILDING TO 3 TO 5 FEET  
AFTER MIDNIGHT. WAVES OCCASIONALLY AROUND 7 FEET.    
SATURDAY
 
NORTH WINDS 15 TO 20 KNOTS. SUNNY. WAVES 3 TO 5 FEET.  
WAVES OCCASIONALLY AROUND 6 FEET.    
SATURDAY NIGHT
 
NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHWEST  
5 TO 10 KNOTS IN THE LATE EVENING AND EARLY MORNING, THEN  
INCREASING TO 10 TO 15 KNOTS AFTER MIDNIGHT. CLEAR. WAVES 2 TO  
4 FEET SUBSIDING TO 1 TO 3 FEET IN THE LATE EVENING AND  
OVERNIGHT.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ443-302200-  
PORT SANILAC TO PORT HURON MI-  
953 AM EDT FRI MAY 30 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH  
SATURDAY AFTERNOON...  
   
REST OF TODAY
 
WEST WINDS 5 TO 10 KNOTS INCREASING TO 10 TO  
15 KNOTS LATE IN THE AFTERNOON. PARTLY CLOUDY. ISOLATED SHOWERS  
AND THUNDERSTORMS IN THE AFTERNOON. WAVES 2 FEET OR LESS.    
TONIGHT
 
NORTHWEST WINDS 5 TO 10 KNOTS BECOMING NORTH 15 TO  
20 KNOTS. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND THUNDERSTORMS  
IN THE EVENING, THEN PARTLY CLOUDY WITH ISOLATED SHOWERS AFTER  
MIDNIGHT. WAVES 2 FEET OR LESS BUILDING TO 3 TO 5 FEET AFTER  
MIDNIGHT. WAVES OCCASIONALLY AROUND 7 FEET.    
SATURDAY
 
NORTH WINDS 15 TO 20 KNOTS. MOSTLY SUNNY. WAVES 4 TO  
6 FEET. WAVES OCCASIONALLY AROUND 8 FEET.    
SATURDAY NIGHT
 
NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHWEST  
5 TO 10 KNOTS IN THE LATE EVENING AND EARLY MORNING, THEN  
INCREASING TO 10 TO 15 KNOTS AFTER MIDNIGHT. CLEAR. WAVES 2 TO  
4 FEET SUBSIDING TO 1 TO 3 FEET IN THE LATE EVENING AND  
OVERNIGHT.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LEZ444-302200-  
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-  
953 AM EDT FRI MAY 30 2025  
   
REST OF TODAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.  
WAVES 2 FEET OR LESS.    
TONIGHT
 
NORTHWEST WINDS 5 TO 10 KNOTS INCREASING TO 10 TO  
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY WITH  
SCATTERED SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN MOSTLY  
CLEAR WITH SCATTERED SHOWERS AFTER MIDNIGHT. WAVES 2 FEET OR  
LESS.    
SATURDAY
 
NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY SUNNY. WAVES  
2 FEET OR LESS.    
SATURDAY NIGHT
 
NORTHWEST WINDS 10 TO 15 KNOTS DIMINISHING TO  
5 TO 10 KNOTS IN THE LATE EVENING AND OVERNIGHT. CLEAR. WAVES  
2 FEET OR LESS.  
 
SEE LAKE ERIE OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 
THE WATER TEMPERATURE AT BELLE ISLE IS 58 DEGREES.  
 

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