* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Oklahoma, including the following counties, Atoka, Blaine, Bryan, Caddo, Canadian, Carter, Cleveland, Coal, Comanche, Cotton, Garfield, Garvin, Grady, Hughes, Jackson, Jefferson, Johnston, Kingfisher, Kiowa, Lincoln, Logan, Love, Major, Marshall, McClain, Murray, Noble, Oklahoma, Payne, Pontotoc, Pottawatomie, Seminole, Stephens and Tillman and northern Texas, including the following counties, Archer, Baylor, Clay, Foard, Hardeman, Knox, Wichita and Wilbarger. * WHEN...Through this afternoon. * 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. * ADDITIONAL DETAILS... - Areas of locally heavy rainfall are expected today this afternoon. - http://www.weather.gov/safety/flood