718  
WHUS73 KIWX 310807  
MWWIWX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE NORTHERN INDIANA  
407 AM EDT THU JUL 31 2025  
 
LMZ046-311615-  
/O.EXT.KIWX.SC.Y.0051.000000T0000Z-250801T0900Z/  
MICHIGAN CITY IN TO NEW BUFFALO MI-  
407 AM EDT THU JUL 31 2025  
   
..SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 AM EDT FRIDAY  
 
* WHAT...WAVES 4 TO 7 FEET, SUBSIDING BRIEFLY THIS AFTERNOON TO 2  
TO 4 FEET, THEN INCREASING TO 3 TO 6 FEET TONIGHT. NORTHEAST  
WIND GUSTS THIS MORNING TO 25 KNOTS.  
 
* WHERE...MICHIGAN CITY IN TO NEW BUFFALO MI.  
 
* WHEN...UNTIL 5 AM EDT FRIDAY.  
 
* 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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