Flood Watch

05/16/2018 10:10 PM through 05/17/2018 8:00 AM

Update to NWS-IDP-PROD-2833106-2615704

Flood Watch issued May 16 at 10:10PM EDT expiring May 19 at 6:00AM EDT by NWS Mount Holly NJ


The Flood Watch continues for

* Delaware and portions of northeast Maryland, New Jersey, and
eastern Pennsylvania.

* From Thursday evening through late Friday night.

* Periods of light to moderate rain will continue Friday. Heavier
precipitation is expected to move into the area Thursday night.
Periods of moderate to heavy rain are then expected to persist
into at least Friday, possibly into the weekend. General
rainfall amounts of 2 to 4 inches are expected over the next 72
hours with the highest totals occurring along and south of the
Interstate 78 corridor. Locally higher amounts over 5 inches are
possible in slow-moving thunderstorms.

* A variety of flooding types are possible. Low-lying and poor
drainage flooding will be the most common type of flooding to
develop. Flash flooding will also be possible if thunderstorms
repeatedly move over the same locations, especially in urban
areas where rainfall runoff is maximized and where small creeks
and streams respond quickly. Flash flooding occurs quicker than
other types flooding due to the torrential rain thunderstorms
can produce in a short amount of time. Several days of excessive
runoff will eventually lead to a risk of flooding in larger
streams and rivers though the extent of the flooding will depend
on where the heaviest rain falls.


A Flood Watch means there is a potential for flooding based on
current forecasts.

If you live across the Passaic, Raritan, and Rancocas basins in
New Jersey or the Neshaminy, Schuylkill, and Brandywine basins
across Pennsylvania and Delaware, keep an eye on later river
forecasts. These forecasts, as well as all of our hydrologic
forecasts, can be accessed via our Advanced Hydrologic Prediction
Service website. Those living in areas prone to flooding should
be prepared to take action should flooding develop.

Target Area

Northwestern Burlington; Somerset; Upper Bucks; Coastal Ocean; Mercer; Lehigh; Inland Sussex; Cecil; Western Montgomery; Berks; Gloucester; Northampton; Hunterdon; Queen Anne's; Warren; Kent; Cumberland; Delaware; Middlesex; Cape May; Eastern Monmouth; Western Chester; New Castle; Atlantic; Southeastern Burlington; Lower Bucks; Eastern Montgomery; Delaware Beaches; Caroline; Camden; Coastal Atlantic; Philadelphia; Atlantic Coastal Cape May; Kent; Talbot; Salem; Eastern Chester; Ocean; Western Monmouth

Sender: NWS Mount Holly NJ
Sent: 10:10 PM on 05-16-2018
Sender Email: w-nws.webmaster@noaa.gov