565  
WGUS83 KLOT 091828  
FLSLOT  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE CHICAGO IL  
128 PM CDT SUN AUG 9 2026  
 
ILC031-043-092130-  
/O.NEW.KLOT.FA.Y.0083.260809T1828Z-260809T2130Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
COOK IL-DUPAGE IL-  
128 PM CDT SUN AUG 9 2026  
   
..FLOOD ADVISORY IN EFFECT UNTIL 430 PM CDT THIS AFTERNOON  
 
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS EXPECTED.  
 
* WHERE...NORTHEASTERN COOK COUNTY IN NORTHEASTERN ILLINOIS...  
CENTRAL DUPAGE COUNTY IN NORTHEASTERN ILLINOIS...  
 
* WHEN...UNTIL 430 PM 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 126 PM CDT, DOPPLER RADAR INDICATED HEAVY RAIN DUE TO  
THUNDERSTORMS. RADAR AND OBSERVATIONS INDICATE THESE STORMS ARE  
PRODUCING A QUICK 1 TO 2 INCHES OF RAIN IN LESS THAN 45 MINUTES.  
THIS WILL LIKELY RESULT IN MINOR FLOODING SHORTLY AFTER  
THUNDERSTORMS ARRIVE.  
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...  
CHICAGO, CICERO, EVANSTON, SKOKIE, BERWYN, WHEATON, OAK PARK,  
DOWNERS GROVE, ELMHURST, LOMBARD, OHARE AIRPORT, CAROL STREAM,  
PARK RIDGE, ADDISON, GLENDALE 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.  
 
 
 
LAT...LON 4207 8767 4206 8766 4203 8766 4201 8765  
4199 8765 4197 8763 4195 8763 4193 8762  
4192 8762 4191 8761 4191 8760 4190 8759  
4188 8759 4188 8761 4187 8760 4185 8760  
4183 8759 4180 8826 4189 8826  
 
 
 
CARLAW  
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