421  
WHUS73 KDTX 111603  
MWWDTX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
1203 PM EDT TUE MAR 11 2025  
 
LHZ361-362-111715-  
/O.EXP.KDTX.GL.W.0009.000000T0000Z-250311T1600Z/  
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT  
BEYOND 5 NM OFF SHORE-  
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND  
5NM OFF SHORE-  
1203 PM EDT TUE MAR 11 2025  
   
..GALE WARNING HAS EXPIRED
 
 
GUSTS TO 30 KNOTS WILL PERSIST THIS AFTERNOON.  
 

 
 
LHZ442-443-120200-  
/O.CON.KDTX.SC.Y.0017.000000T0000Z-250312T0200Z/  
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-  
1203 PM EDT TUE MAR 11 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 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.  
 

 
 

 
 
LHZ421-441-120200-  
/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-  
1203 PM 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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