577  
WHUS53 KDTX 030740  
SMWDTX  
LCZ423-460-030845-  
/O.NEW.KDTX.MA.W.0075.260903T0740Z-260903T0845Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
340 AM EDT THU SEP 3 2026  
 
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
DETROIT RIVER...  
LAKE ST. CLAIR OPEN LAKE (U.S. PORTION)...  
 
* UNTIL 445 AM EDT.  
 
* AT 339 AM EDT, A STRONG THUNDERSTORM WAS LOCATED OVER GROSSE  
POINTE, MOVING EAST AT 50 KNOTS.  
 
HAZARD...WIND GUSTS TO 40 KNOTS AND SMALL HAIL.  
 
SOURCE...RADAR.  
 
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND  
SUDDENLY HIGHER WAVES.  
 
* THE STRONG THUNDERSTORM WILL BE NEAR...  
GROSSE POINTE AROUND 345 AM EDT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.  
 

 
 
LAT...LON 4237 8283 4232 8306 4229 8310 4226 8311  
4227 8315 4233 8311 4239 8295 4244 8291  
4254 8291 4248 8272  
TIME...MOT...LOC 0739Z 290DEG 49KT 4239 8296  
 
HAIL...<.75IN  
WIND...40KTS  
 

 
 
AA  
 
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