Headline:
Flash Flood Warning issued August 9 at 11:47PM CDT until August 10 at 3:45AM CDT by NWS Chicago IL
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
August 9, 2026 - 9:47pm
Expires:
August 10, 2026 - 1:45am
Description:
FFWLOT
The National Weather Service in Chicago has issued a
* Flash Flood Warning for...
Northeastern Livingston County in central Illinois...
East Central La Salle County in north central Illinois...
Southern Grundy County in northeastern Illinois...
* Until 345 AM CDT.
* At 1147 PM CDT, Doppler radar indicated slow moving thunderstorms
with rain rates of 2 to 3 inches per hour. Up to 2.5 inches has
occurred so far just north of Streator. Flash flooding is ongoing
or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
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...
Streator, Marseilles, Dwight, Seneca, Gardner, Mazon, South
Streator, Braceville, Grand Ridge, South Wilmington, Ransom,
Kangley, Verona, Campus, Reddick, East Brooklyn and Kinsman.
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.
Area Description:
Grundy, IL; La Salle, IL; Livingston, IL
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov