* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...All of southern Illinois, southeast Missouri, western Kentucky, and southwest Indiana. * WHEN...Through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Extensive street flooding and flooding of creeks and rivers are possible. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - An additional round of rainfall is expected this afternoon and evening across portions of the area. An additional 0.75-2 inches of rain is possible. Should storms manage to train over areas that are already heavily saturated, flash flooding will be a concern.