362  
WHUS53 KDTX 241841  
SMWDTX  
LHZ421-422-441-462-242015-  
/O.NEW.KDTX.MA.W.0052.250724T1841Z-250724T2015Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
241 PM EDT THU JUL 24 2025  
 
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI...  
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH 5NM OFF SHORE TO THE  
US/CANADIAN BORDER...  
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER  
SAGINAW BAY...  
PORT AUSTIN TO HARBOR BEACH MI...  
 
* UNTIL 415 PM EDT.  
 
* AT 241 PM EDT, STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE  
EXTENDING FROM 16 NM WEST OF TAWAS BAY TO 14 NM WEST OF PINCONNING  
TO 34 NM SOUTHWEST OF LINWOOD, MOVING EAST AT 40 KNOTS.  
 
HAZARD...WIND GUSTS TO NEARLY 50 KNOTS.  
 
SOURCE...RADAR.  
 
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND  
SUDDENLY HIGHER WAVES.  
 
* STRONG THUNDERSTORMS WILL BE NEAR...  
PINCONNING AROUND 255 PM EDT.  
GRAVELLY SHOALS AROUND 315 PM EDT.  
BAY CITY LIBERTY HARBOR AND THE MOUTH OF THE SAGINAW RIVER AROUND  
320 PM EDT.  
SEBEWAING, CASEVILLE, QUANICASSEE, AND BAY PORT AROUND 340 PM EDT.  
PORT AUSTIN AROUND 350 PM EDT.  
 
OTHER LOCATIONS IMPACTED BY STRONG THUNDERSTORMS INCLUDE BAY PORT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.  
 
 
 
LAT...LON 4391 8396 4392 8389 4399 8384 4399 8368  
4405 8366 4405 8358 4419 8356 4418 8263  
4364 8263 4378 8266 4398 8279 4404 8291  
4397 8306 4395 8324 4369 8346 4367 8354  
4355 8367 4365 8394 4366 8394 4368 8396  
TIME...MOT...LOC 1841Z 264DEG 40KT 4430 8388 4387 8429 4351 8469  
 
HAIL...0.00IN  
WIND...49KTS  
 
 
 
MV  
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