Illinois Severe Flash Flood Warning | Effective 06/21/2026 13:56

Headline: 
Flash Flood Warning issued June 21 at 3:56PM CDT until June 21 at 7:00PM CDT by NWS Lincoln IL
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
June 21, 2026 - 1:56pm
Expires: 
June 21, 2026 - 5:00pm
Description: 
FFWILX The National Weather Service in Lincoln has issued a * Flash Flood Warning for... Northwestern Clay County in south central Illinois... Southern Effingham County in south central Illinois... * Until 700 PM CDT. * At 355 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Watson, Dieterich, Edgewood, Mason, Bible Grove, Heartville, Iola, Hord and Effingham County Airport. This includes Interstate 57 between mile markers 143 and 154. This includes the following streams and drainages... Fulfer Creek, Limestone Creek, Little Panther Creek, Little Muddy Creek, Dieterich Creek, Little Bishop Creek, Second Creek, Little Salt Creek, Sutton Creek, Dismal Creek, Brush Creek, Lucas Creek, Panther Creek, Crabapple Creek, Brockett Creek, Big Muddy Creek, Crooked Creek, Little Wabash River, Georgetown Creek, Island Creek, Salt Creek and Bishop Creek.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Area Description: 
Clay, IL; Effingham, IL
Forcast Office: 
NWS Lincoln IL