NWUS53 KLOT 191953

LSRLOT



Preliminary Local Storm Report

National Weather Service Chicago IL

253 PM CDT Tue Aug 19 2025



..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...

..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....

            ..REMARKS..



0725 PM     Flash Flood      2 E Rockton             42.46N 89.04W

08/18/2025                   Winnebago          IL   Public           



            Public report of street flooding near 

            Rockton Road and Dorr Road. Flooding 

            extending into nearby yards. 



0725 PM     Rain             2 E Rockton             42.46N 89.04W

08/18/2025  M4.50 Inch       Winnebago          IL   Public           



            Photo shared to social media shows 4.5 

            inches of rainfall near Rockton Road and 

            Dorr Road. Rainfall ongoing at time of 

            observation. 



0815 PM     Flash Flood      1 NE Tinley Park        41.59N 87.78W

08/18/2025                   Cook               IL   Public           



            A few public reports of basement flooding in 

            Tinley Park. Relayed via social media. 

            Photos and videos show flooded roadways with 

            at least several inches of flowing water in 

            the vicinity. Time estimated based upon 

            nearby reports. 



0600 AM     Flash Flood      3 WSW Orland Hills      41.58N 87.89W

08/19/2025                   Cook               IL   Law Enforcement  



            Wolf Road flooded near 167th Street near 

            Marley Creek crossing. Relayed via social 

            media. 



0600 AM     Flash Flood      3 WNW Orland Park       41.63N 87.90W

08/19/2025                   Cook               IL   Law Enforcement  



            143rd Street closed due to flooding near 

            Creek Crossing Drive. Relayed via social 

            media. 



0810 PM     Rain             5 N Capron              42.47N 88.73W

08/18/2025  M5.75 Inch       Boone              IL   Public           



            Photo shared to social media shows 5.75 

            inches of rain in backyard rain gauge. 

            Location approximate, indicated as northwest 

            of Harvard and south of Sharon. 





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WSL