* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southeast Ohio, including the following county, Washington and West Virginia, including the following counties, Barbour, Boone, Braxton, Cabell, Calhoun, Clay, Doddridge, Gilmer, Harrison, Jackson WV, Kanawha, Lewis, Lincoln, Logan, Mason, McDowell, Mingo, Northwest Fayette, Northwest Nicholas, Northwest Pocahontas, Northwest Raleigh, Northwest Randolph, Northwest Webster, Pleasants, Putnam, Ritchie, Roane, Southeast Fayette, Southeast Nicholas, Southeast Pocahontas, Southeast Raleigh, Southeast Randolph, Southeast Webster, Taylor, Tyler, Upshur, Wayne, Wirt, Wood and Wyoming. * WHEN...Through Wednesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Slow moving heavy showers and thunderstorms will periodically move through the area through Wednesday. Areas which have previously received heavy rain will be most vulnerable to additional flooding. - http://www.weather.gov/safety/flood