640  
WHUS73 KDTX 120741  
MWWDTX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
341 AM EDT FRI AUG 12 2022  
 
LHZ421-441-121000-  
/O.CON.KDTX.SC.Y.0048.000000T0000Z-220812T1000Z/  
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER  
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-  
341 AM EDT FRI AUG 12 2022  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY  
THIS MORNING...  
 
* WHAT...EXPECT SUSTAINED WINDS UP TO 17 KNOTS FROM THE NORTH  
WITH GUSTS UP TO 19 KNOTS. THE LARGEST SIGNIFICANT WAVES WILL  
BE 4 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 5 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 AND WAVES ARE EXPECTED UNTIL AROUND 6  
AM EDT.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.  
 

 
 

 
 
LHZ442-443-121000-  
/O.CON.KDTX.SC.Y.0048.000000T0000Z-220812T1000Z/  
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-  
341 AM EDT FRI AUG 12 2022  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY  
THIS MORNING...  
 
* WHAT...EXPECT SUSTAINED WINDS UP TO 18 KNOTS FROM THE NORTH  
WITH GUSTS UP TO 20 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 AND WAVES ARE EXPECTED UNTIL AROUND 6  
AM EDT.  
 
* 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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