...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central into southern Iowa, including the following counties, in central Iowa, Boone, Dallas, Grundy, Hamilton, Hardin, Jasper, Marshall, Polk, Poweshiek, Story, Tama and Webster. In northeast Iowa, Black Hawk. In south central Iowa, Clarke, Lucas, Madison, Mahaska, Marion, Monroe and Warren. In southeast Iowa, Davis and Wapello. In southwest Iowa, Adair and Cass. In west central Iowa, Audubon, Calhoun, Carroll, Crawford, Greene, Guthrie and Sac. * WHEN...Through Sunday morning. * 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. Significant ponding may also occur. * ADDITIONAL DETAILS... - Thunderstorms producing heavy to very heavy rainfall are possible tonight. Intense rainfall rates are likely with any storms having the potential to produce 1 to 2 inches of rainfall over a short time period. Total rainfall amounts of 2 to 5 inches may occur in some areas with the potential to exceed 5 inches in a few areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... For the latest waterway observations and forecasts refer to weather.gov/desmoines/water. &&