Iowa Flood Watch | Effective 05/18/2026 20:36

Headline: 
Flood Watch issued May 18 at 10:36PM CDT until May 19 at 7:00AM CDT by NWS Des Moines IA
Event: 
Flood Watch
Urgency: 
Future
Effective: 
May 18, 2026 - 8:36pm
Expires: 
May 19, 2026 - 5:00am
Description: 
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of south central and southwest Iowa, including the following counties, Clarke, Decatur, Ringgold, Union, Wayne, Adams, and Taylor. * WHEN...Until 7 AM CDT Tuesday. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Soil moisture is relatively high due to recent heavy rainfall. Additional rainfall tonight may lead to flash flooding. flooding.
Instruction: 
For the latest stream observations and forecasts refer to weather.gov/desmoines/water.
Area Description: 
Adams; Union; Clarke; Taylor; Ringgold; Decatur; Wayne
Forcast Office: 
NWS Des Moines IA
Sender: 
w-nws.webmaster@noaa.gov