Active Weather Alerts
Flood Watch
Issued: 7:09 PM Aug. 13, 2026 – National Weather Service
...FLOOD WATCH NOW IN EFFECT THROUGH SATURDAY MORNING... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central, north central, northeast, northwest, south central, southeast, southwest, and west central Iowa, including the following counties, in central Iowa, Boone, Dallas, Grundy, Hamilton, Hardin, Jasper, Marshall, Polk, Poweshiek, Story, Tama and Webster. In north central Iowa, Butler, Franklin, Humboldt and Wright. In northeast Iowa, Black Hawk and Bremer. In northwest Iowa, Pocahontas. In south central Iowa, Clarke, Lucas, Madison, Mahaska, Marion, Monroe, Union and Warren. In southeast Iowa, Davis and Wapello. In southwest Iowa, Adair, Adams and Cass. In west central Iowa, Audubon, Calhoun, Carroll, Crawford, Greene, Guthrie and Sac. * WHEN...Through Saturday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks, and flooding is also possible in larger rivers as well. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Several rounds of rain have occurred this week with more rain to come from tonight through Saturday morning with the potential to repeat over the same area leading to rain quickly accumulating as well as high rain rates of 1 to 2 inches per hour. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. For the latest stream observations and forecasts refer to weather.gov/desmoines/water. &&
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