428  
WHUS53 KLOT 100240  
SMWLOT  
LMZ740>745-777-779-100415-  
/O.NEW.KLOT.MA.W.0033.200710T0240Z-200710T0415Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE  
940 PM CDT THU JUL 9 2020  
 
THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
 
NEARSHORE WATERS FROM WINTHROP HARBOR TO CALUMET HARBOR...  
NEARSHORE WATERS FROM CALUMET HARBOR TO MICHIGAN CITY...  
OPEN WATERS FROM WINTHROP HARBOR TO MICHIGAN CITY OUT TO MID  
LAKE...  
 
* UNTIL 1115 PM CDT.  
 
* AT 938 PM CDT, OUTLFOW AHEAD OF AN AREA OF STRONG THUNDERSTORMS  
WAS LOCATED ALONG A LINE EXTENDING FROM WINTHROP HARBOR TO AURORA  
TO 33 NM SOUTHWEST OF JOLIET, MOVING SOUTHEAST AT 20 KNOTS. THE  
DUPAGE AIRPORT REPORTED WIND GUSTS TO 34 KT WITH THIS OUTFLOW.  
ADDITIONAL STRONGER WINDS AND LIGHTNING WILL CONTINUE AT TIMES  
BEHIND THE OUTFLOW.  
 
HAZARD...WIND GUSTS 34 KNOTS OR GREATER.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND  
SUDDENLY HIGHER WAVES.  
 
* LOCATIONS IMPACTED INCLUDE...  
HAMMOND MARINA, WILMETTE HARBOR, JACKSON PARK HARBOR, 31ST STREET  
HARBOR, MONROE HARBOR, BURNS HARBOR, CALUMET HARBOR, BELMONT  
HARBOR, MARINA SHORES AT DUNE HARBOR, WINTHROP HARBOR, DIVERSY  
HARBOR, MONTROSE HARBOR, WILLIAM DEVER CRIB, DUSABLE HARBOR, 59TH  
STREET MARINA, BURNHAM HARBOR, INDIANA HARBOR AND WAUKEGAN HARBOR.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR IMMEDIATELY AS GUSTY WINDS AND HIGH WAVES ARE  
EXPECTED.  
 
OCCASIONAL LIGHTNING IS OCCURRING WITH THESE STORMS. IF CAUGHT ON  
THE OPEN WATER STAY BELOW DECK IF POSSIBLE, KEEP AWAY FROM  
UNGROUNDED METAL OBJECTS.  
 

 
 
LAT...LON 4162 8733 4164 8743 4168 8743 4167 8747  
4170 8751 4183 8760 4189 8762 4189 8760  
4190 8762 4206 8767 4227 8783 4248 8780  
4246 8702 4213 8696 4179 8697 4179 8696  
4172 8692 4163 8716 4162 8732 4161 8732  
TIME...MOT...LOC 0238Z 296DEG 21KT 4249 8785 4175 8826 4122 8873  
 
HAIL...0.00IN  
WIND...>34KTS  
 

 
 
DONOFRIO  
 
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