689  
WGUS83 KLOT 091938  
FLSLOT  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE CHICAGO IL  
238 PM CDT SUN AUG 9 2026  
 
ILC031-043-197-092215-  
/O.CON.KLOT.FA.Y.0084.000000T0000Z-260809T2215Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
COOK IL-DUPAGE IL-WILL IL-  
238 PM CDT SUN AUG 9 2026  
 
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 515 PM CDT THIS  
AFTERNOON...  
 
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES.  
 
* WHERE...EAST CENTRAL COOK COUNTY IN NORTHEASTERN ILLINOIS...  
SOUTHERN DUPAGE COUNTY IN NORTHEASTERN ILLINOIS...  
NORTHWESTERN WILL COUNTY IN NORTHEASTERN ILLINOIS...  
 
* WHEN...UNTIL 515 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. SLOW MOVING OR STANDING  
WATER MAY CONTINUE.  
 
* ADDITIONAL DETAILS...  
- AT 235 PM CDT, A NATIONAL WEATHER SERVICE METEOROLOGIST OBSERVED  
SEVERAL INCHES OF FLOWING WATER ACROSS ROADWAYS IN DOWNTOWN  
NAPERVILLE DUE TO HEAVY RAIN FROM ONGOING THUNDERSTORMS. ACROSS  
THE ADVISORY AREA, MINOR FLOODING IS ONGOING OR EXPECTED TO BEGIN  
SHORTLY. BETWEEN 0.5 AND 2 INCHES OF RAIN HAVE FALLEN.  
- ADDITIONAL RAINFALL AMOUNTS OF 0.5 TO 1.5 INCHES ARE EXPECTED  
OVER THE AREA. THIS ADDITIONAL RAIN WILL RESULT IN MINOR  
FLOODING.  
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...  
CHICAGO, AURORA, NAPERVILLE, BOLINGBROOK, OAK LAWN, DOWNERS  
GROVE, WOODRIDGE, MIDWAY AIRPORT, CHICAGO LAWN, ENGLEWOOD,  
BRIDGEPORT, ROSELAND, SOUTH SHORE, BURBANK AND BLUE ISLAND.  
- 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 4180 8826 4183 8759 4181 8758 4180 8757  
4179 8757 4179 8756 4177 8755 4177 8754  
4175 8752 4171 8752 4165 8753 4169 8826  
 

 
 
DOOM  
 
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