POLISCOPE
Back to feed
NewsNBC Chicago – LocalJuly 4, 2026Illinois

Critical Flash Flood Warnings Issued for Chicago Suburbs

The National Weather Service has issued urgent flash flood warnings for parts of Cook, DuPage, Kane, and Will counties due to heavy rainfall. Residents are strongly advised to avoid travel unless evacuating, as dangerous flooding is occurring in multiple suburban areas.

weatheremergency managementpublic safetyflooding
Read the full story at NBC Chicago – Local

Why It Matters

Residents in the affected suburbs face immediate risks of life-threatening flash flooding, road closures, and potential vehicle entrapment due to rainfall rates of 2 to 3 inches per hour.

Key Facts

  • Flash flood warnings are in effect for northwestern Cook, northwestern DuPage, and northeastern Kane counties until 7 p.m.
  • Flash flood warnings are in effect for southern DuPage, northwestern Will, and Lake County (Indiana) until 9:30 p.m.
  • Thunderstorms are producing rainfall at a rate of 2 to 3 inches per hour.
  • Up to 3 inches of rain have already been recorded in northeastern Kane County.
  • Flash flooding was reported in the Elgin area at approximately 4 p.m.
  • Residents are advised to avoid travel unless under an evacuation order or fleeing a flooded area.
  • Expected impacts include rapid flooding of creeks, streams, drainage ditches, low-lying areas, and highways.
  • The National Weather Service advises drivers to 'turn around, don't drown' if they encounter flooded roads.
  • Affected locations include Elgin, Schaumburg, Wheaton, Hoffman Estates, Bartlett, Streamwood, Carol Stream, Hanover Park, Carpentersville, St. Charles, Algonquin, West Chicago, Huntley, Campton Hills, Roselle, Bloomingdale, South Elgin, Winfield, Pingree Grove, and Gilberts.

Who's Mentioned

locationKane County“Area under flash flood warning.”locationDuPage County“Area under flash flood warning.”organizationNBC 5 Storm Team“Media outlet providing weather updates.”locationCook County“Area under flash flood warning.”locationWill County“Area under flash flood warning.”organizationNational Weather Service“Issued the flash flood warnings and provided meteorological data.”locationLake County“Area in Indiana under flash flood warning.”