* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...southern Miami County, northern Montgomery County, and western Clark County in Ohio.
* WHEN...Until 515 PM EDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
* ADDITIONAL DETAILS... - At 201 PM EDT, radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 1.5 inches of rain have fallen. Additional rainfall amounts of 0.5 to 1 inch are possible. - Some locations that may experience flooding include... Tipp City, Park Layne, Brandt, Huber Heights, Troy, Vandalia, New Carlisle, West Milton, Brown, Riverside, Union, Donnelsville, Ludlow Falls, Phoneton, Ginghamsburg, and Grayson..