...FLOOD WATCH REMAINS IN EFFECT FROM 1 AM CDT TUESDAY THROUGH TUESDAY EVENING...

* WHAT...Flash flooding caused by excessive rainfall continues to be possible.

* WHERE...Portions of central, north central, northeast, northwest, south central, 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, Cerro Gordo, Franklin, Hancock, Humboldt, Kossuth, Winnebago, Worth and Wright. In northeast Iowa, Black Hawk and Bremer. In northwest Iowa, Emmet, Palo Alto and Pocahontas. In south central Iowa, Madison, Mahaska, Marion and Warren. In southwest Iowa, Adair and Cass. In west central Iowa, Audubon, Calhoun, Carroll, Crawford, Greene, Guthrie and Sac.

* WHEN...From 1 AM CDT Tuesday through Tuesday evening.

* 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.

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

For the latest river and stream observations and forecasts refer to weather.gov/desmoines/water.