357
WGUS73 KLOT 122229
FFSLOT
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
529 PM CDT TUE AUG 12 2025
ILC031-043-197-130100-
/O.CON.KLOT.FF.W.0012.000000T0000Z-250813T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COOK IL-DUPAGE IL-WILL IL-
529 PM CDT TUE AUG 12 2025
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
FOR CENTRAL COOK, SOUTHEASTERN DUPAGE AND NORTHERN WILL COUNTIES...
AT 529 PM CDT, DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THUNDERSTORMS PRODUCING HEAVY RAINFALL WITH RATES UP TO 2-3 INCHES
PER HOUR NEAR THE DOWNERS GROVE, DARIEN, AND WOODRIDGE AREAS. UP TO
3 INCHES OF RAINFALL HAS FALLEN THUS FAR. THIS AREA OF HEAVY
RAINFALL IS MOVING SLOWLY EASTWARD TOWARD THE CENTRAL CHICAGO
METROPOLITAN AREA. FLOODING IS EXPECTED TO BEGIN SHORTLY AFTER THE
ONSET OF HEAVY RAINFALL.
HAZARD...FLASH FLOODING.
SOURCE...RADAR AND AUTOMATED GAUGES.
IMPACT...RAPID-ONSET FLOODING OF CREEKS, STREAMS, DRAINAGE
DITCHES, STREETS, UNDERPASSES, LOW-LYING AREAS, AND
OTHER POOR DRAINAGE AREAS.
SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CHICAGO, NAPERVILLE, CICERO, BOLINGBROOK, OAK LAWN, BERWYN, OAK
PARK, DOWNERS GROVE, ELMHURST, LOMBARD, ROMEOVILLE, WOODRIDGE,
MIDWAY AIRPORT, AUSTIN, SOUTH LAWNDALE, CHICAGO LAWN, ENGLEWOOD,
BRIDGEPORT, WEST TOWN AND CHICAGO LOOP.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS RAPID-ONSET FLOODING IS IMMINENT OR MAY
ALREADY BE OCCURRING. PERSONS ALONG CREEKS, DRAINAGE DITCHES, AND
OTHER WATERWAYS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE
AND PROPERTY.
LAT...LON 4187 8792 4192 8761 4185 8759 4184 8759
4183 8759 4183 8758 4180 8757 4164 8790
4169 8814 4178 8815
FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...2-3 INCHES IN 1 HOUR
WSL
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