New event. Flash Flood Watch from 9/1/2021 8:00 AM to 9/2/2021 8:00 PM EDT for Southern PA. More information.
Interactive NWS Alert
Radar valid at 800 pm EDT, Sep 2nd 2021
Western Chester-Eastern Chester-Western Montgomery-
Eastern Montgomery-Upper Bucks-Lower Bucks-
Including the cities of Newton, Washington, Morristown,
Flemington, Somerville, New Brunswick, Trenton, Jim Thorpe,
Stroudsburg, Reading, Allentown, Bethlehem, Easton, Media,
Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square,
Collegeville, Pottstown, Norristown, Lansdale, Chalfont,
Perkasie, Morrisville, and Doylestown
500 AM EDT Mon Aug 30 2021
...FLASH FLOOD WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
The National Weather Service in Mount Holly has issued a
* Flash Flood Watch for portions of New Jersey and Pennsylvania,
including the following areas, in New Jersey, Hunterdon,
Mercer, Middlesex, Morris, Somerset, Sussex, and Warren. In
Pennsylvania, Berks, Carbon, Delaware, Eastern Chester,
Eastern Montgomery, Lehigh, Lower Bucks, Monroe, Northampton,
Philadelphia, Upper Bucks, Western Chester, and Western
* From Wednesday morning through Thursday evening.
* The remnants of Hurricane Ida will pass through the region
Wednesday through Wednesday night, finally departing on
Thursday. Periods of heavy rain and scattered thunderstorms
associated with this low will result in widespread 3 to 5 inches
of rain, with locally higher amounts likely exceeding 6 inches
from late Tuesday night through Thursday morning. Combined with
wet antecedent conditions, this will lead to flash flooding.
* Flooding of creeks, streams, urban areas, and poor drainage
areas is possible. Water is likely to cover the roads,
especially in low lying areas. Moderate to major flooding is
possible along the main stem rivers, and roads and structures
near these rivers may be flooded.
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.
iNWS is an experimental service intended for NWS core partners,
including emergency managers, community leaders and other government