854  
WHUS53 KDTX 172040  
SMWDTX  
LHZ442-443-463-464-172215-  
/O.NEW.KDTX.MA.W.0004.240417T2040Z-240417T2215Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
440 PM EDT WED APR 17 2024  
 
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
HARBOR BEACH TO PORT SANILAC MI...  
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC 5NM OFF SHORE TO  
US/CANADIAN BORDER...  
LAKE HURON FROM PORT SANILAC TO PORT HURON 5NM OFF SHORE TO  
US/CANADIAN BORDER...  
PORT SANILAC TO PORT HURON MI...  
 
* UNTIL 615 PM EDT.  
 
* AT 439 PM EDT, SEVERE THUNDERSTORMS CAPABLE OF PRODUCING  
WATERSPOUTS WERE LOCATED ALONG A LINE EXTENDING FROM 16 NM  
SOUTHWEST OF LEXINGTON TO 10 NM SOUTHWEST OF LAKEPORT TO NEAR ST.  
CLAIR, MOVING NORTHEAST AT 40 KNOTS.  
 
HAZARD...WATERSPOUTS AND WIND GUSTS 34 KNOTS OR GREATER.  
 
SOURCE...RADAR.  
 
IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY  
HAZARDOUS SEAS. SMALL CRAFT COULD BE DAMAGED IN BRIEFLY  
HIGHER WINDS AND SUDDENLY HIGHER WAVES.  
 
* SEVERE THUNDERSTORMS WILL BE NEAR...  
LAKEPORT AROUND 445 PM EDT.  
LEXINGTON AROUND 455 PM EDT.  
PORT SANILAC AROUND 505 PM EDT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.  
 

 
 
LAT...LON 4301 8241 4300 8247 4322 8256 4345 8260  
4382 8218 4359 8212  
TIME...MOT...LOC 2039Z 223DEG 42KT 4313 8285 4304 8272 4288 8250  
 
WATERSPOUT...POSSIBLE  
HAIL...0.00IN  
WIND...>34KTS  
 

 
 
KDK  
 
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