Flash Flood Warning — Decatur County, Iowa
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Current Status
🌊 Active: Flash Flood Warning
Flash Flood Warning issued August 5 at 7:12AM CDT until August 5 at 1:15PM CDT by NWS Des Moines IA
FFWDMX The National Weather Service in Des Moines has issued a * Flash Flood Warning for... Clarke County in south central Iowa... Northern Decatur County in south central Iowa... Southwestern Lucas County in south central Iowa... Wayne County in south central Iowa... * Until 115 PM CDT Wednesday. * At 712 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across 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... Osceola, Corydon, Lakeside Casino, Murray, Seymour, Allerton, Humeston, Van Wert, Garden Grove, Woodburn, Weldon, Derby, Millerton, Le Roy and Murray Roadside Rest Area.
Effective August 5, 2026 at 8:12 AM ET · Expires August 5, 2026 at 2:15 PM ET
Event Details
Event Type
Flash Flood Warning
Severity
severe
Issued By
NWS Des Moines IA
Expires
August 5, 2026 at 2:15 PM ET
Last Checked
1 minute ago
What To Do
📋 Official NWS Guidance
For the latest stream observations and forecasts refer to weather.gov/desmoines/water. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Also In Effect For
This same Flash Flood Warning also covers:
Other Active Alerts in Iowa
Get Flash Flood Warning Alerts for Decatur County
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Frequently Asked Questions
What does a Flash Flood Warning mean for Decatur County, Iowa?
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Is this Flash Flood Warning currently active?
Yes — this alert is active as of our last check (1 minute ago). It's set to expire August 5, 2026 at 2:15 PM ET.
How do I get notified about Flash Flood Warning alerts for Decatur County?
Download StormCast free on Google Play and set Decatur County, Iowa as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Flash Flood Warning is also in effect for Lucas County, Clarke County, Wayne County.