* WHAT. Flash flooding caused by excessive rainfall is possible. * WHERE. Portions of northeast Kentucky, including the following counties, Boyd, Carter, Greenup and Lawrence KY, southeast Ohio, including the following counties, Athens, Gallia, Jackson OH, Lawrence OH, Meigs and Vinton, and West Virginia, including the following counties, Boone, Cabell, Jackson WV, Kanawha, Lincoln, Logan, Mason, Mingo, Putnam, Roane, Wayne, Wirt and Wood. * WHEN. From 2 PM EDT this afternoon through Thursday morning. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Low-water crossings may be flooded. * ADDITIONAL DETAILS. - http://www.weather.gov/safety/flood