The NWS Philadelphia said that there is a Flash Flood Watch in effect. It establishes as target area: Berks; Delaware; Eastern Chester; Eastern Montgomery; Lehigh; Lower Bucks; Northampton; Philadelphia; Upper Bucks; Western Chester and Western Montgomery.
The alert say explains that multiple additional rounds of showers and thunderstorms producing locally heavy rain are possible through tonight.
The ground remains saturated in the region due to the recent heavy rains associated with Tropical Storm Isaias, and this will make it easier than usual for flash flooding to occur in areas that receive heavy rainfall over a short duration.
Areas of flash flooding are expected, especially in urban and flood-prone areas. Small streams and creeks will also be susceptible to flooding, especially those that remain elevated from antecedent rainfall.
A Flash Flood Watch means that there is the potential for flash flooding which can be life-threatening. Heavy rain is expected to occur over a short period of time. Rapidly rising flood waters may quickly inundate roadways and areas of poor drainage. Streams and creeks could leave their banks, flooding nearby properties.
Flash Flood Watch remains in effect through late tonight. It continues for Portions of Delaware, northeast Maryland, New Jersey, and Pennsylvania, including the following areas, in Delaware, Delaware Beaches, Inland Sussex, Kent, and New Castle
In northeast Maryland, Caroline, Cecil, Kent MD, Queen Annes, and Talbot.
You can read: Five-year-old girl missing during Isaias storm was found dead
In New Jersey, Atlantic, Atlantic Coastal Cape May, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington, and Western Monmouth.
In Pennsylvania, Berks, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery.
The NWS is asking to monitor the forecast, especially if you live in a location that is prone to flooding. It also recommends to be prepared to take action if a flash flood warning is issued for your area.