NOUS43 KLOT 031706 PNSLOT SERVICE CHANGE NOTICE NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 1200 PM CDT FRI MAY 3 2024 To: Family of Services (FOS) subscribers, NOAA Weather Wire Service (NWWS) subscribers, Emergency Managers Weather Information Network (EMWIN) subscribers, NOAAPort subscribers, National Weather Service (NWS) partners and other users, and NWS employees. From: W. Scott Lincoln Senior Service Hydrologist NWS Chicago Subject: Change to flood impact categories on the Little Calumet River in Cook County, Illinois Effective June 3, 2024, flood impact categories will change for Little Calumet River at South Holland (NWS identifier SHLI2). These changes were coordinated with representatives from the village of South Holland and Cook County Emergency Management and Regional Security. Action Stage will change from 15.0 feet to 12.0 feet, minor flood stage will change from 16.5 feet to 16.0 feet, moderate flood stage will change from 18.0 feet to 17.5 feet, and major flood stage will change from 20.0 feet to 19.5 feet. Forecast and warning information is available from the NOAA/NWS Chicago web page at weather.gov/chicago as well as the National Water Prediction Service (NWPS) web page at water.noaa.gov. If you have any questions regarding this change, please contact: W. Scott Lincoln scott.lincoln@noaa.gov 815-834-0600 x493