* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central, south central, southwest, and west central Michigan, including the following counties, in central Michigan, Gratiot and Montcalm. In south central Michigan, Clinton and Ionia. In southwest Michigan, Allegan, Barry, Kent and Ottawa. In west central Michigan, Muskegon. * WHEN...Through Wednesday morning. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Thunderstorms with heavy rain will bring the possibility of flooding through Wednesday morning. - http://www.weather.gov/safety/flood