Willow Grove, PA

... Flash Flood Watch remains in effect from Friday afternoon
through Saturday afternoon... 

The Flash Flood Watch 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. In New Jersey, Atlantic, Atlantic coastal Cape May, 
  Camden, Cape May, coastal Atlantic, coastal ocean, Cumberland, 
  eastern Monmouth, Gloucester, Mercer, Middlesex, northwestern 
  Burlington, ocean, Salem, southeastern Burlington, and western 
  Monmouth. In Pennsylvania, Berks, Delaware, eastern Chester, 
  eastern Montgomery, lower Bucks, Philadelphia, upper Bucks, 
  western Chester, and western Montgomery. 

* From Friday afternoon through Saturday afternoon

* showers and thunderstorms with heavy rain will develop 
  starting Friday afternoon and will first move into northeast 
  Maryland, Delaware, southeast Pennsylvania, and southern New 
  Jersey, before lifting north towards central New Jersey. 
  Additional waves of showers and thunderstorms with heavy rain 
  will then continue to impact these same areas Friday night 
  through Saturday afternoon. Rainfall amounts during this time 
  will generally range from 2 to 4 inches, but training of 
  thunderstorms may result in significantly higher amounts. 

* Heavy rain falling in a short period of time will result in 
  rapidly rising water levels along streams and creeks and in 
  areas of poor drainage. Significant roadway flooding may 
  occur. It is also important to note that heavy rain will fall 
  over areas that already received several inches of rain early 
  this week, so it will not take much for flooding to occur. 

Precautionary/preparedness actions... 

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.