780
WGUS73 KLOT 171001
FFSLOT
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
501 AM CDT SUN AUG 17 2025
ILC031-043-089-093-197-171030-
/O.CON.KLOT.FF.W.0016.000000T0000Z-250817T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COOK IL-DUPAGE IL-KANE IL-KENDALL IL-WILL IL-
501 AM CDT SUN AUG 17 2025
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 AM CDT EARLY THIS
MORNING FOR SOUTHEASTERN COOK, WESTERN DUPAGE, KANE, NORTHERN
KENDALL AND WILL COUNTIES...
AT 501 AM CDT, DOPPLER RADAR INDICATED THAT THE TORRENTIAL RAIN
PRODUCING THUNDERSTORMS HAVE DIMINISHED IN COVERAGE. HOWEVER,
POCKETS OF HEAVY RAIN WERE STILL OCCURRING OVER SOUTHEAST KANE
COUNTY AND FAR NORTHEAST KENDALL COUNTY. BETWEEN 3 AND 4 INCHES OF
RAIN HAVE FALLEN. UP TO 0.5 INCHES OF ADDITIONAL RAINFALL MAY OCCUR
IN THE NEXT 30 MINUTES IN PORTIONS OF THE WARNED AREA. FLASH
FLOODING IS LIKELY ALREADY OCCURRING IN MUCH OF THE WARNED AREA.
HAZARD...FLASH FLOODING.
SOURCE...RADAR.
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...
AURORA, JOLIET, NAPERVILLE, ELGIN, BOLINGBROOK, ORLAND PARK,
TINLEY PARK, WHEATON, BARTLETT, CAROL STREAM, ROMEOVILLE,
PLAINFIELD, ST. CHARLES, WOODRIDGE, OSWEGO, CHICAGO HEIGHTS, OAK
FOREST, WEST CHICAGO, BATAVIA AND LOCKPORT.
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.
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
LAT...LON 4207 8859 4211 8859 4194 8818 4177 8808
4170 8795 4147 8753 4132 8753 4131 8753
4130 8753 4130 8787 4152 8825 4172 8860
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...0.5 INCHES IN 30 MINUTES
RC
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