881
WGUS73 KLOT 122105
FFSLOT
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
405 PM CDT TUE AUG 12 2025
ILC031-197-122300-
/O.CON.KLOT.FF.W.0011.000000T0000Z-250812T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COOK IL-WILL IL-
405 PM CDT TUE AUG 12 2025
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING
FOR SOUTHEASTERN COOK AND CENTRAL WILL COUNTIES...
AT 405 PM CDT, DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
GENERALLY DECREASING RAINFALL RATES OVER THE LAST HALF HOUR ACROSS
THE AREA. MULTIPLE PUBLIC REPORTS OF ROADWAY FLOODING HAVE BEEN
RECEIVED DUE TO EARLIER RAINFALL. ADDITIONAL SLOW-MOVING
THUNDERSTORMS ARE DEVELOPING AND MOVING INTO THE AREA WITH RAINFALL
RATES UP TO 2 INCHES PER HOUR. ADDITIONAL RAINFALL MAY WORSEN
FLOODING OR CAUSE WATER TO STOP RECEDING. UP TO 3.5 INCHES OF RAIN
HAVE FALLEN SO FAR.
HAZARD...FLASH FLOODING.
SOURCE...TRAINED SPOTTERS.
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, HAMMOND, ORLAND PARK, TINLEY PARK, OAK LAWN, CALUMET
CITY, CHICAGO HEIGHTS, ROSELAND, ENGLEWOOD, SOUTH SHORE, LANSING,
OAK FOREST, HARVEY, NEW LENOX, HOMER GLEN, BLUE ISLAND, MUNSTER,
DOLTON, PARK FOREST AND HOMEWOOD.
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 4181 8757 4180 8756 4179 8756 4179 8755
4177 8755 4177 8754 4175 8752 4171 8752
4160 8752 4147 8753 4147 8796 4155 8796
4164 8791
FLASH FLOOD...OBSERVED
EXPECTED RAINFALL RATE...2 INCHES IN 1 HOUR
WSL
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