441  
WHUS73 KDTX 110732  
MWWDTX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
332 AM EDT TUE MAR 11 2025  
 
LHZ442-443-112100-  
/O.CON.KDTX.SC.Y.0017.250311T1400Z-250312T0200Z/  
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-  
332 AM EDT TUE MAR 11 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING  
TO 10 PM EDT THIS EVENING...  
 
* WHAT...EXPECT SUSTAINED WINDS UP TO 19 KNOTS FROM THE NORTH  
WITH GUSTS UP TO 24 KNOTS. THE LARGEST SIGNIFICANT WAVES WILL  
BE 5 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7 FEET.  
 
* WHERE...HARBOR BEACH TO PORT SANILAC MI AND PORT SANILAC TO  
PORT HURON MI.  
 
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 2 PM EDT TUESDAY  
WITH THE LARGEST WAVES EXPECTED AROUND 5 PM EDT TUESDAY.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.  
 

 
 

 
 
LHZ421-441-112100-  
/O.CON.KDTX.SC.Y.0017.000000T0000Z-250312T0200Z/  
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER  
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-  
332 AM EDT TUE MAR 11 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS  
EVENING...  
 
* WHAT...EXPECT SUSTAINED WINDS UP TO 20 KNOTS FROM THE  
NORTHWEST WITH GUSTS UP TO 28 KNOTS. THE LARGEST SIGNIFICANT  
WAVES WILL BE 5 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7  
FEET.  
 
* WHERE...OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO  
INNER SAGINAW BAY AND PORT AUSTIN TO HARBOR BEACH MI.  
 
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 3 AM EDT TUESDAY  
WITH THE LARGEST WAVES EXPECTED AROUND 4 PM EDT TUESDAY.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.  
 

 
 

 
 
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