WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northern Delaware...New Jersey...and Pennsylvania...including the following areas...in northern Delaware...New Castle. In New Jersey...Mercer and Middlesex. In Pennsylvania...Berks, Carbon, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Monroe, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * WHEN...Until Midnight EDT tonight. * 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. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Scattered showers and thunderstorms with locally heavy rain are expected across the watch area this afternoon and evening. Widespread rainfall amounts near 1 inch with locally higher amounts near 3 inches occurred on Monday, saturating the ground. Rainfall amounts of 1-2 inches with localized amounts near 3 inches will be possible with the showers and thunderstorms today. These totals may result in additional flash flooding.