* WHAT...Flash flooding caused by excessive rainfall continues to be possible.
* WHERE...A portion of central Pennsylvania, including the following counties, Lancaster, Lebanon and Schuylkill.
* WHEN...Until 2 AM EDT Friday.
* 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. Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS... - Heavy thunderstorm downpours with rainfall rates of 1 to 2 inches per hour could produce scattered areas of flash flooding late this afternoon into the first half of tonight. - http://www.weather.gov/safety/flood