823  
WGUS83 KLOT 011109  
FLSLOT  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE CHICAGO IL  
609 AM CDT SAT AUG 1 2026  
 
ILC031-197-011615-  
/O.NEW.KLOT.FA.Y.0074.260801T1109Z-260801T1615Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
COOK IL-WILL IL-  
609 AM CDT SAT AUG 1 2026  
   
..FLOOD ADVISORY IN EFFECT UNTIL 1115 AM CDT THIS MORNING  
 
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS EXPECTED.  
 
* WHERE...COOK COUNTY IN NORTHEASTERN ILLINOIS...  
CENTRAL WILL COUNTY IN NORTHEASTERN ILLINOIS...  
 
* WHEN...UNTIL 1115 AM CDT.  
 
* IMPACTS...CREEKS AND STREAMS MAY RISE OUT OF THEIR BANKS. FLOODING  
MAY OCCUR IN POOR DRAINAGE AND URBAN AREAS. UNDERPASSES MAY BE  
FLOODED. ROADS AND STREETS MAY BE FLOODED.  
 
* ADDITIONAL DETAILS...  
- AT 608 AM CDT, DOPPLER RADAR INDICATED HEAVY RAIN DUE TO  
THUNDERSTORMS. MINOR FLOODING IS ONGOING OR EXPECTED TO BEGIN  
SHORTLY IN THE ADVISORY AREA. UP TO 1 INCH OF RAIN HAS FALLEN.  
- ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE EXPECTED OVER  
THE AREA. THIS ADDITIONAL RAIN WILL RESULT IN MINOR FLOODING.  
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...  
CHICAGO, CICERO, EVANSTON, SKOKIE, DES PLAINES, ORLAND PARK,  
TINLEY PARK, OAK LAWN, BERWYN, MOUNT PROSPECT, OAK PARK,  
GLENVIEW, OHARE AIRPORT, WHEELING, PARK RIDGE, CALUMET CITY,  
NORTHBROOK, CHICAGO HEIGHTS AND NILES.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A FLOOD ADVISORY MEANS MINOR FLOODING ALONG WATERWAYS AND OTHER POOR  
DRAINAGE AREAS IS IMMINENT OR MAY ALREADY BE OCCURRING. PERSONS IN  
THE ADVISORY AREA SHOULD USE CAUTION AND AVOID FLOOD WATERS.  
 
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD  
DEATHS OCCUR IN VEHICLES.  
 
 
 
LAT...LON 4215 8792 4216 8776 4207 8767 4187 8760  
4185 8760 4175 8752 4147 8753 4146 8779  
4147 8791  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IL Page
The Nexlab IN Page
Main Text Page