913  
WHUS53 KLOT 042012  
SMWLOT  
LMZ740>745-777-779-042315-  
/O.NEW.KLOT.MA.W.0055.260704T2012Z-260704T2315Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE  
312 PM CDT SAT JUL 4 2026  
 
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 615 PM CDT.  
 
* AT 312 PM CDT, A STRONG THUNDERSTORM WAS LOCATED NEAR ELGIN, OR 23  
NM WEST OF WILMETTE HARBOR, MOVING EAST AT 15 KNOTS APPROACHING  
LAKE MICHIGAN.  
 
HAZARD...WIND GUSTS TO 40 KNOTS.  
 
SOURCE...RADAR.  
 
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND  
SUDDENLY HIGHER WAVES.  
 
* LOCATIONS IMPACTED INCLUDE...  
HARRISON-DEVER CRIB, WILMETTE HARBOR, 31ST STREET HARBOR, MONROE  
HARBOR, BURNS HARBOR, CALUMET HARBOR, INDIANA HARBOR, MONTROSE  
HARBOR, BURNHAM HARBOR, HAMMOND MARINA, JACKSON PARK HARBOR, AND  
BELMONT HARBOR.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR IMMEDIATELY AS GUSTY WINDS AND HIGH WAVES ARE  
EXPECTED.  
 
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 4162 8733 4164 8743 4167 8742 4169 8750  
4179 8758 4178 8758 4189 8762 4189 8760  
4190 8762 4206 8767 4215 8776 4214 8697  
4179 8697 4179 8696 4172 8691 4163 8716  
4162 8732 4161 8733  
TIME...MOT...LOC 2012Z 274DEG 16KT 4206 8820  
 
HAIL...0.00IN  
WIND...40KTS  
 

 
 
DK  
 
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