* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...The extreme southern Texas Panhandle, South Plains, and Rolling Plains. * WHEN...From 4 PM CDT this afternoon through Friday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Widespread rain showers are expected to develop Thursday afternoon and persist through much of Friday. Showers may be heavy at times, especially late Thursday into early Friday morning, and may result in flash flooding. - http://www.weather.gov/safety/flood