961  
WGUS83 KLOT 041640 RRA  
FLSLOT  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE CHICAGO IL  
1140 AM CDT SAT JUL 4 2026  
 
ILC043-050000-  
/O.EXT.KLOT.FA.Y.0061.000000T0000Z-260705T0000Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
DUPAGE IL-  
1140 AM CDT SAT JUL 4 2026  
   
..FLOOD ADVISORY NOW IN EFFECT UNTIL 7 PM CDT THIS EVENING
 
 
* WHAT...FLOODING CAUSED BY MULTIPLE ROUNDS OF THUNDERSTORMS  
CONTINUES.  
 
* WHERE...A PORTION OF NORTHEAST ILLINOIS, INCLUDING THE FOLLOWING  
COUNTY, DUPAGE.  
 
* WHEN...UNTIL 700 PM CDT SATURDAY.  
 
* IMPACTS...FLOODING IS EXPECTED TO CONTINUE ALONG THE EAST BRANCH  
OF THE DUPAGE RIVER NEAR MORTON ARBORETUM. WATER WILL CONTINUE TO  
IMPACT A PORTION OF ROUTE 53 AND SURROUNDING ROADS AND TRAILS.  
 
* ADDITIONAL DETAILS...  
- AT 1140 AM CDT, FLOODING WAS OCCURRING IN THE WARNED AREA. IN  
THE PAST 48 HOURS, BETWEEN 3 AND 5 INCHES OF RAIN HAS FALLEN.  
- THE WORST FLOODING IS OCCURRING NEAR THE DUPAGE RIVER IN  
DOWNERS GROVE AND LISLE, PARTICULARLY NEAR THE MORTON  
ARBORETUM.  
- THE MAIN IMPACTED AREA IN THE FLOOD ADVISORY IS ALONG ROUTE  
53 NEAR THE MORTON ARBORETUM.  
- THIS INCLUDES THE FOLLOWING RIVERS AND STREAMS...  
THE EAST BRANCH DUPAGE RIVER NEAR LOMBARD, MORTON ARBORETUM,  
AND LISLE.  
SALT CREEK NEAR ELMHURST, OAK BROOK, AND WESTERN SPRINGS.  
- 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.  
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE  
DANGERS OF FLOODING.  
 

 
 
LAT...LON 4176 8806 4176 8810 4180 8809 4183 8806  
4183 8803 4181 8805 4179 8807  
 

 
 
BORCHARDT  
 
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