Illinois Severe Flash Flood Warning | Effective 07/04/2026 13:24

Headline: 
Flash Flood Warning issued July 4 at 3:24PM CDT until July 4 at 8:15PM CDT by NWS Chicago IL
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 4, 2026 - 1:24pm
Expires: 
July 4, 2026 - 6:15pm
Description: 
FFWLOT 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.
Instruction: 
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.
Area Description: 
DuPage, IL; Will, IL
Forcast Office: 
NWS Chicago IL