WHUS53 KLOT 190132

SMWLOT

LMZ741>745-779-190300-

/O.NEW.KLOT.MA.W.0043.250819T0132Z-250819T0300Z/



BULLETIN - IMMEDIATE BROADCAST REQUESTED

Special Marine Warning

National Weather Service Chicago/Romeoville

832 PM CDT Mon Aug 18 2025



The National Weather Service in Chicago has issued a



* Special Marine Warning for...



  Nearshore Waters from Wilmette Harbor to Calumet Harbor...

  Nearshore Waters from Calumet Harbor to Michigan City...

  Open Waters from Wilmette Harbor to Michigan City out to Mid

Lake...



* Until 1000 PM CDT.



* At 832 PM CDT, strong thunderstorms were located along a line

  extending from near Ohare Airport to near Midway Airport to 11 nm

  east of Joliet to 29 nm southeast of Aurora, moving east at 30

  knots.



  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...

  Calumet Harbor, Marina Shores at Dune Harbor, Burnham Harbor, 59th

  Street Marina, Hammond Marina, Indiana Harbor, Jackson Park Harbor,

  31st Street Harbor, Monroe Harbor, Burns Harbor, and DuSable

  Harbor.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Move to safe harbor until hazardous weather passes.



&&



LAT...LON 4162 8733 4164 8743 4168 8743 4167 8747

      4171 8753 4179 8758 4178 8758 4189 8762

      4189 8760 4190 8762 4199 8697 4179 8697

      4179 8696 4172 8691 4166 8709 4165 8714

      4163 8716 4162 8732 4161 8732

TIME...MOT...LOC 0132Z 265DEG 30KT 4195 8789 4178 8784 4151 8786 4132

8802



HAIL...0.00IN

WIND...40KTS



$$



DK