Flash Flood Warning

Locations Affected

Bloomington, IL ∙ Normal, IL ∙ Stanford, IL ∙ Merna, IL ∙ Shirley, IL ∙ Downs, IL ∙ Twin Grove, IL ∙ Ellsworth, IL ∙ Heyworth, IL ∙ McLean, IL

Full Alert Message

BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Lincoln IL 334 AM CDT Sat Aug 15 2026 The National Weather Service in Lincoln has extended the * Flash Flood Warning for... Southwestern McLean County in central Illinois... * Until 800 AM CDT. * At 334 AM CDT, the public reported thunderstorms producing heavy rain across the warned area. Between 2 and 5 inches of rain have fallen. The expected rainfall rate is 1 to 3 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Public reported. 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... Bloomington, Normal, Le Roy, Heyworth, Danvers, Downs, McLean, Stanford, Ellsworth, Central Illinois Regional Airport, Shirley, Holder and Moraine View State Park. This includes the following State Parks... Moraine View State Park. This includes the following highways... Interstate 39 between mile markers 0 and 1. Interstate 74 between mile markers 123 and 155. Interstate 55 between mile markers 142 and 167. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads. && LAT...LON 4028 8926 4047 8927 4051 8927 4053 8927 4055 8927 4057 8927 4051 8864 4028 8865 FLASH FLOOD...OBSERVED EXPECTED RAINFALL RATE...1-3 INCHES IN 1 HOUR

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