706  
WHUS53 KGRR 052330  
SMWGRR  
LMZ845-876-060015-  
/O.NEW.KGRR.MA.W.0037.170905T2330Z-170906T0015Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
730 PM EDT TUE SEP 5 2017  
 
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
NEARSHORE AND OPEN WATERS FROM SOUTH HAVEN TO HOLLAND MI...  
 
* UNTIL 815 PM EDT  
 
* AT 730 PM EDT...A SHOWER PRODUCING WATERSPOUTS WAS LOCATED 9 NM  
WEST OF THE SAUGATUCK PIERHEADS...MOVING SOUTHEAST AT 20 KNOTS.  
 
HAZARD...WATERSPOUTS AND WIND GUSTS 34 KNOTS OR GREATER.  
 
SOURCE...PUBLIC.  
 
IMPACT...WATERSPOUTS CAN CREATE LOCALLY HAZARDOUS SEAS. HAZARDOUS  
CONDITIONS ABOVE DECK IN BRIEFLY HIGHER WINDS AND  
SUDDENLY HIGHER WAVES.  
 
* LOCATIONS IMPACTED INCLUDE...  
THE SAUGATUCK PIERHEADS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS  
SEAS. SEEK SAFE HARBOR IMMEDIATELY.  
 

 
 
LAT...LON 4266 8622 4264 8623 4259 8622 4256 8624  
4247 8625 4264 8687 4277 8689 4277 8643  
4271 8621  
TIME...MOT...LOC 2329Z 293DEG 21KT 4264 8643  
 
WATERSPOUT...OBSERVED  
HAIL...0.00IN  
WIND...>34KTS  
 

 
 
CAS  
 
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