The National Weather Service has issued a Flash Food Watch in anticipation of Topical Storm Elsa hitting the region. Areas that may see flooding include urban and poor-drainage areas and near vulnerable small creeks and streams.
The Flash Flood Watch is now in effect for portions of Berks, Carbon, Lehigh, Monroe, and Northampton Counties through Friday morning.
Heavy rainfall will develop over portions of eastern Pennsylvania and northwestern New Jersey ahead of Tropical Storm Elsa through this afternoon. The area will see 1 to 2 inches of rain with locally higher amounts at that time. Another 1 to 2 inches of rain is expected with Tropical Storm Elsa tonight into early Friday morning.
Heavy rain in a short period of time may cause streams and creeks to rise quickly out of their banks and there is the potential for flash flooding in areas of poor drainage.