Advisory
Flash Flood Watch
Flash Flood Watch 
Flash Flood Watch in effect until 4AM, 7/24. Be prepared to take action in the event that flooding develops.
The National Weather Service in Mount Holly has issued a Flash Flood Watch for portions of Delaware, northeast Maryland, and Pennsylvania, including the following areas, in Delaware, Kent and New Castle. In northeast Maryland, Caroline, Cecil, Kent MD, Queen Annes, and Talbot. In Pennsylvania, Berks, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery.
* Through late tonight
* Showers and thunderstorms will overspread the area throughout the day and into this evening. Rainfall rates over 1 inch per hour will be possible, and training of heavy rain showers will also lead to areas of flash flooding.
* Excessive rainfall within a short period of time can lead to rapidly rising water and flash flooding, particularly in urban areas and along small creeks and streams.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
Please monitor the forecast, especially if you live in a location that is prone to flooding. Be prepared to take action if a flash flood warning is issued for your area.
For additional updates and weather information, visit http://www.weather.gov/phi
For all current NWS Watches, Warnings, or Advisories, visit http://goo.gl/xfexUk
For further information on emergency preparedness, visit http://www.phila.gov/ready
Address/Location
Philadelphia Office of Emergency Management
240 Spring Garden St
Philadelphia, PA 19123
Contact
Emergency: 9-1-1