Illinois, Indiana Severe Flash Flood Warning | Effective 07/04/2026 14:19

Headline: 
Flash Flood Warning issued July 4 at 4:19PM CDT until July 4 at 9:15PM CDT by NWS Chicago IL
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 4, 2026 - 2:19pm
Expires: 
July 4, 2026 - 7:15pm
Description: 
FFWLOT The National Weather Service in Chicago has issued a * Flash Flood Warning for... Southeastern Cook County in northeastern Illinois... Eastern Will County in northeastern Illinois... Northwestern Lake IN County in northwestern Indiana... * Until 915 PM CDT. * At 419 PM CDT, Doppler radar indicated thunderstorms producing rainfall rates of up to 2 to 3 inches per hour overspreading the warned area. Flash flooding is expected to begin shortly after the onset of heavy 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... Chicago, Joliet, Hammond, Orland Park, Tinley Park, Oak Lawn, Calumet City, Woodridge, Chicago Heights, Roseland, Chicago Lawn, Englewood, South Shore, Burbank, Lansing, Oak Forest, Harvey, New Lenox, Homer Glen and Blue Island.
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: 
Cook, IL; Will, IL; Lake, IN
Forcast Office: 
NWS Chicago IL