890  
FZUS73 KGRR 132345  
MWSGRR  
 
MARINE WEATHER STATEMENT  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
745 PM EDT FRI JUL 13 2018  
 
LMZ848-849-868-870-140030-  
/O.CON.KGRR.MA.W.0017.000000T0000Z-180714T0030Z/  
745 PM EDT FRI JUL 13 2018  
   
..A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
 
 
FOR THE FOLLOWING AREAS...  
NEARSHORE AND OPEN WATERS FROM WHITEHALL TO MANISTEE MI...  
 
AT 745 PM EDT, A STRONG THUNDERSTORM WAS LOCATED 20 NM SOUTHWEST OF  
MANISTEE LIGHTHOUSE, MOVING EAST AT 30 KNOTS.  
 
HAZARD...WIND GUSTS TO 40 KNOTS AND SMALL HAIL.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND  
SUDDENLY HIGHER WAVES.  
 
LOCATIONS IMPACTED INCLUDE...  
MANISTEE LIGHTHOUSE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
BOATERS SHOULD SEEK SAFE HARBOR IMMEDIATELY UNTIL THIS STORM PASSES.  
WIND GUSTS TO 40 KNOTS, SMALL HAIL, HIGH WAVES, DANGEROUS LIGHTNING,  
AND HEAVY RAIN ARE POSSIBLE WITH THIS STORM.  
 
FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF CAUGHT ON THE  
OPEN WATER STAY BELOW DECK IF POSSIBLE, KEEP AWAY FROM UNGROUNDED  
METAL OBJECTS.  
 

 
 
LAT...LON 4425 8634 4413 8642 4406 8651 4404 8651  
4397 8646 4383 8643 4377 8644 4373 8647  
4380 8709 4412 8701 4421 8697 4428 8643  
TIME...MOT...LOC 2345Z 270DEG 30KT 4402 8670  
 
HAIL...<.75IN  
WIND...40KTS  
 

 
 
04  
 
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