Flood Watch

* WHAT...Flash flooding caused by excessive rainfall continues to be possible.

* WHERE...A portion of southeast Pennsylvania, including the following areas, Delaware, Eastern Chester, Philadelphia and Western Chester.

* WHEN...Until midnight EDT tonight.

* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS... - Showers and thunderstorms will continue to develop through this evening, capable of producing heavy downpours. Rainfall rates of 1 to 2 inches per hour, possibly as high as 3 inches per hour, are likely and short term training could result in flooding over southeast Pennsylvania. - http://www.weather.gov/safety/flood