Active Weather Alerts
Flash Flood Warning
Issued: 2:07 AM Jul. 21, 2026 – National Weather Service
The National Weather Service in Des Moines has issued a * Flash Flood Warning for... Northeastern Dallas County in central Iowa... Western Polk County in central Iowa... * Until 315 AM CDT Tuesday. * At 907 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. 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... Des Moines, West Des Moines, Ankeny, Urbandale, Johnston, Clive, Altoona, Waukee, Norwalk, Pleasant Hill, Grimes, Perry, Windsor Heights, Carlisle, Polk City, Saylorville, Dallas Center, Granger, Woodward and Saylorville Lake. Expect flash flooding in the Fourmile Creek Basin. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && FLASH FLOOD...RADAR INDICATED
Local Radar