Advisory
Flash Flood Watch
Flash Flood Watch 
Flash Flood Watch extended until 0800hrs tomorrow, 7/25. Be prepared to take action in the event that flooding develops.
... Flash Flood Watch now in effect through Wednesday morning...
The Flash Flood Watch is now in effect 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, Carbon, Delaware,
eastern Chester, eastern Montgomery, Lehigh, lower Bucks,
Monroe, Northampton, Philadelphia, upper Bucks, western
Chester, and western Montgomery.
* Through Wednesday morning
* showers and some thunderstorms are expected to become more
numerous today and continue tonight. A tropical airmass will
support areas of very heavy rain, especially where showers and
thunderstorms move over the same area. Rainfall amounts over 1
inch in an hour will be possible, and any training of heavy
showers will lead to even higher amounts.
* 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