Illinois Severe Flash Flood Warning | Effective 07/27/2026 00:24

Headline: 
Flash Flood Warning issued July 27 at 2:24AM CDT until July 27 at 5:00AM CDT by NWS Lincoln IL
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 27, 2026 - 12:24am
Expires: 
July 27, 2026 - 3:00am
Description: 
FFWILX The National Weather Service in Lincoln has issued a * Flash Flood Warning for... Eastern Effingham County in south central Illinois... * Until 500 AM CDT. * At 222 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 2.5 inches of rain have fallen, with the heaviest amounts over Effingham. The expected rainfall rate is 1 to 2 inches in 1 hour. 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... Effingham, Teutopolis, Watson, Dieterich, Heartville and Effingham County Airport. This includes the following highways... Interstate 70 between mile markers 89 and 101. Interstate 57 between mile markers 150 and 167.
Instruction: 
Be especially cautious at night when it is harder to recognize the dangers of flooding. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
Area Description: 
Effingham, IL
Forcast Office: 
NWS Lincoln IL