728  
FZUS73 KGRR 200737  
MWSGRR  
 
MARINE WEATHER STATEMENT  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
337 AM EDT THU APR 20 2017  
 
LMZ845>849-868-870-872-874-876-200800-  
337 AM EDT THU APR 20 2017  
   
..STRONG THUNDERSTORMS APPROACHING THE WATERS
 
 
THE AREAS AFFECTED INCLUDE...  
NEARSHORE WATERS FROM SOUTH HAVEN TO MANISTEE MI...  
OPEN WATERS FROM SOUTH HAVEN TO MANISTEE MI...  
 
AT 335 AM EDT...A LINE OF THUNDERSTORMS CAPABLE OF PRODUCING WINDS  
OVER 30 KNOTS WERE LOCATED ALONG A LINE EXTENDING FROM 20 NAUTICAL  
MILES WEST OF THE LUDINGTON PIERHEADS TO 25 NAUTICAL MILES SOUTHWEST  
OF THE LITTLE SABLE POINT LIGHTHOUSE TO 14 NAUTICAL MILES EAST OF  
KENOSHA...MOVING NORTHEAST AT 55 KNOTS.  
 
LOCATIONS IMPACTED INCLUDE...  
THE GRAND HAVEN PIERHEADS...THE LITTLE SABLE POINT LIGHTHOUSE...THE  
MUSKEGON PIERHEADS...THE SAUGATUCK PIERHEADS AND MANISTEE LIGHTHOUSE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
THESE STRONG THUNDERSTORMS WILL LIKELY PRODUCE WINDS TO AROUND 30  
KNOTS...AND COULD POSE A SERIOUS HAZARD FOR BOATERS. A SPECIAL  
MARINE WARNING MAY EVENTUALLY BE REQUIRED WHEN THESE STORMS REACH  
THE NEARSHORE WATERS. BOATERS SHOULD CONSIDER HEADING FOR SHORE  
BEFORE THESE STORMS ARRIVE.  
 

 
 
LAT...LON 4425 8634 4413 8642 4406 8651 4383 8643  
4362 8654 4302 8623 4268 8621 4252 8624  
4251 8702 4412 8697 4425 8667 4428 8642  
 

 
 
OSTUNO  
 
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