623  
WHUS53 KDTX 212123  
SMWDTX  
LHZ421-441-442-462-463-212300-  
/O.NEW.KDTX.MA.W.0051.190821T2123Z-190821T2300Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
523 PM EDT WED AUG 21 2019  
 
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
OUTER SAGINAW BAY...  
NEARSHORE AND OPEN WATERS FROM PORT AUSTIN TO PORT SANILAC MI...  
 
* UNTIL 700 PM EDT.  
 
* AT 523 PM EDT, A STRONG THUNDERSTORM WAS LOCATED 7 NM SOUTH OF PORT  
AUSTIN, MOVING SOUTHEAST AT 30 KNOTS.  
 
HAZARD...WIND GUSTS 34 KNOTS OR GREATER 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...  
PORT HOPE AROUND 545 PM EDT.  
HARBOR BEACH AROUND 550 PM EDT.  
WHITE ROCK AROUND 600 PM EDT.  
 
OTHER LOCATIONS IMPACTED BY THE STRONG THUNDERSTORM INCLUDE WHITE  
ROCK, RICHMONDVILLE AND BAY PORT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR IMMEDIATELY AS GUSTY WINDS AND HIGH WAVES ARE  
EXPECTED.  
 

 
 
LAT...LON 4343 8220 4355 8261 4377 8265 4387 8272  
4388 8272 4399 8279 4403 8293 4397 8306  
4395 8324 4379 8338 4380 8342 4383 8339  
4384 8343 4385 8338 4387 8341 4400 8325  
4405 8290 4405 8277 4386 8218 4360 8212  
TIME...MOT...LOC 2123Z 293DEG 31KT 4392 8300  
 
HAIL...<.75IN  
WIND...>34KTS  
 

 
 
DG  
 
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