Back to Home
Flash Flood Warning — DuPage County, IL, Will County, IL
Flash Flood Warning
Issued
3:24 PM CDT · Sat, Jul 4 2026
Expires
8:15 PM CDT · Sat, Jul 4 2026
Issuing Office
NWS KLOT

Affected Areas

DuPage County, IL Will County, IL

Official Bulletin

804
WGUS53 KLOT 042024
FFWLOT
ILC043-197-050115-
/O.NEW.KLOT.FF.W.0029.260704T2024Z-260705T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Chicago IL
324 PM CDT Sat Jul 4 2026

The National Weather Service in Chicago has issued a

* Flash Flood Warning for...
  Southern DuPage County in northeastern Illinois...
  Northwestern Will County in northeastern Illinois...

* Until 815 PM CDT.

* At 324 PM CDT, Doppler radar indicated thunderstorms producing
  rainfall rates of up to 3 inches per hour. Flash flooding is
  expected to begin shortly after the onset of rainfall.

  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, Bolingbrook, Orland Park, Wheaton,
  Downers Grove, Lombard, Romeoville, Plainfield, Woodridge, Glen
  Ellyn, West Chicago, Batavia, Lockport, New Lenox, Homer Glen,
  Hinsdale, Lemont and Burr Ridge.

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 4184 8792 4172 8792 4169 8797 4169 8803
      4165 8803 4164 8803 4164 8791 4155 8791
      4155 8826 4188 8826

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...3 INCHES IN 1 HOUR

$$

RC