317  
WHUS53 KIWX 190146  
SMWIWX  
LMZ043-046-080-190315-  
/O.NEW.KIWX.MA.W.0016.250819T0146Z-250819T0315Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE NORTHERN INDIANA  
946 PM EDT MON AUG 18 2025  
 
THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
LAKE MICHIGAN MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM OFFSHORE TO  
MID-LINE OF LAKE....  
MICHIGAN CITY IN TO NEW BUFFALO MI...  
NEW BUFFALO MI TO ST JOSEPH MI...  
 
* UNTIL 1115 PM EDT.  
 
* AT 946 PM EDT, A STRONG THUNDERSTORM WAS LOCATED OVER BURNS HARBOR,  
MOVING EAST AT 25 KNOTS.  
 
HAZARD...WIND GUSTS TO 40 KNOTS.  
 
SOURCE...RADAR.  
 
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND  
SUDDENLY HIGHER WAVES.  
 
* LOCATIONS IMPACTED INCLUDE...  
NEW BUFFALO AND MICHIGAN CITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.  
 
FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF CAUGHT ON THE  
OPEN WATER STAY BELOW DECK IF POSSIBLE, KEEP AWAY FROM UNGROUNDED  
METAL OBJECTS.  
 

 
 
LAT...LON 4179 8696 4179 8697 4199 8697 4211 8649  
4194 8658 4189 8662 4180 8675 4179 8676  
4172 8691  
TIME...MOT...LOC 0146Z 255DEG 26KT 4169 8718  
 
HAIL...0.00IN  
WIND...40KTS  
 

 
 
NWS  
 
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