* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northeast Kansas, including the following areas, Atchison KS and Doniphan and Missouri, including the following areas, Buchanan, Caldwell and Clinton. * WHEN...Through Tuesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Periods of heavy rainfall are likely Monday morning and again late Monday night into early Tuesday morning. - http://www.weather.gov/safety/flood