* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of south central and southwest Michigan, including the following counties, in south central Michigan, Calhoun, Clinton, Eaton, Ingham, Ionia and Jackson. In southwest Michigan, Allegan, Barry, Kalamazoo, Kent, Ottawa and Van Buren. * WHEN...Through late Thursday night. * 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. * ADDITIONAL DETAILS... - Additional rain expected tonight may continue to increase expected floods on area rivers. - http://www.weather.gov/safety/flood