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Philadelphia Office of Emergency Management
Saturday May 4th, 2019 :: 03:31 p.m. EDT


Flash Flood Watch

Flash Flood Watch in effect from 8 PM this evening until 4 PM on May 5th. 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 northern Delaware, northeast
  Maryland, New Jersey, and Pennsylvania, including the
  following areas, in northern Delaware, New Castle. In
  northeast Maryland, Cecil and Kent MD. In New Jersey, Camden,
  Gloucester, Hunterdon, Mercer, Middlesex, Northwestern
  Burlington, Salem, Somerset, and Warren. In Pennsylvania,
  Berks, Delaware, Eastern Chester, Eastern Montgomery, Lehigh,
  Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western
  Chester, and Western Montgomery.

* From 8 PM EDT this evening through Sunday afternoon

* Scattered showers and thunderstorms will develop over portions
  of eastern Pennsylvania, Maryland, and Delaware beginning this
  evening with precipitation transitioning to a widespread
  moderate to heavy rain overnight tonight through much of Sunday.
  Total rain amounts by late Sunday are expected to be 1 to 2
  inches with locally higher amounts possible. This will result in
  rises on rivers and streams with the potential for urban, small
  stream, and poor drainage flooding. Flash flooding will also be
  possible in places if the heaviest rain persists in the same
  location for several hours.

* Rain will taper off through the latter portion of Sunday
  afternoon into Sunday evening.


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.

For additional updates and weather information, visit
For all current NWS Watches, Warnings, or Advisories, visit  
For further information on emergency preparedness, visit

Philadelphia Office of Emergency Management
240 Spring Garden St
Philadelphia, PA 19123

Emergency: 9-1-1

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