503  
FZUS73 KGRR 171355  
MWSGRR  
 
MARINE WEATHER STATEMENT  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
955 AM EDT FRI AUG 17 2018  
 
LMZ845>849-868-870-872-874-876-171645-  
955 AM EDT FRI AUG 17 2018  
   
..WATERSPOUTS POSSIBLE TODAY OVER LAKE MICHIGAN
 
 
AT 950 AM EDT, DOPPLER RADAR INDICATED RAIN SHOWERS WITH LITTLE OR  
NO MOVEMENT JUST OFFSHORE OF HOLLAND AND SAUGATUCK. ALTHOUGH SEVERE  
WEATHER IS NOT CURRENTLY EXPECTED, THESE SHOWERS DO HAVE THE  
POTENTIAL TO PRODUCE WATERSPOUTS THIS MORNING.  
 
CONDITIONS IN GENERAL ARE FAVORABLE FOR WATERSPOUTS TO OCCUR ACROSS  
MUCH OF LAKE MICHIGAN TODAY. WATERSPOUTS HAD BEEN SIGHTED JUST  
NORTH OF MILWAUKEE EARLIER THIS MORNING.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD STAY ALERT FOR DEVELOPING SHOWERS AND STORMS AS THEY  
WILL BE CAPABLE OF WATERSPOUTS AND LIGHTNING STRIKES. BOATERS SHOULD  
BE PREPARED TO SEEK SAFE HARBOR IMMEDIATELY IF SHOWERS OR  
THUNDERSTORMS ARE SIGHTED IN YOUR AREA.  
 

 
 
LAT...LON 4241 8628 4244 8635 4246 8701 4338 8714  
4370 8712 4383 8709 4378 8644 4367 8653  
4361 8654 4301 8623 4277 8621  
 

 
 
TJT  
 
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