Ohio Severe Flash Flood Warning | Effective 08/11/2026 13:03

Headline: 
Flash Flood Warning issued August 11 at 4:03PM EDT until August 11 at 7:00PM EDT by NWS Wilmington OH
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
August 11, 2026 - 1:03pm
Expires: 
August 11, 2026 - 4:00pm
Description: 
FFWILN The National Weather Service in Wilmington has issued a * Flash Flood Warning for... Western Highland County in south central Ohio... Northwestern Brown County in southwestern Ohio... Northern Clermont County in southwestern Ohio... Clinton County in southwestern Ohio... Warren County in southwestern Ohio... * Until 700 PM EDT. * At 403 PM EDT, 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. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. 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 may experience flash flooding include... Mason, Lebanon, Wilmington, Loveland, Milford, Blanchester, Amelia, Mount Orab, Sabina, Williamsburg, Batavia, Lynchburg, New Vienna, Morrow, Kings Island, Withamsville and Highpoint.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Stay away or be swept away. River banks and culverts can become unstable and unsafe. To report flash flooding, go to our website at weather.gov/iln and submit your report via social media, when you can do so safely.
Area Description: 
Brown, OH; Clermont, OH; Clinton, OH; Highland, OH; Warren, OH
Forcast Office: 
NWS Wilmington OH
Sender: 
w-nws.webmaster@noaa.gov