Event extended (time). Flash Flood Watch from 9/8/2021 6:04 PM to 9/9/2021 4:00 AM EDT for Southern PA. More information.
Interactive NWS Alert
Radar valid at 400 am EDT, Sep 9th 2021
Chester-Eastern Chester-Western Montgomery-Eastern Montgomery-Upper
Including the cities of Jim Thorpe, Flemington, Media, Philadelphia,
Doylestown, Chalfont, Morristown, Honey Brook, Lansdale, Norristown,
Reading, Pottstown, Allentown, Oxford, Kennett Square, Easton, West
Chester, Morrisville, New Brunswick, Trenton, Newton, Washington,
Collegeville, Bethlehem, Stroudsburg, Perkasie, and Somerville
604 PM EDT Wed Sep 8 2021
...FLASH FLOOD WATCH NOW IN EFFECT UNTIL 4 AM EDT THURSDAY...
The Flash Flood Watch is now in effect 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 Montgomery.
* Until 4 AM EDT Thursday.
* Thunderstorms with heavy rain are forecast to move through the
region this evening. Given the very saturated soils from recent
heavy rain events, additional brief heavy rainfall of one to two
inches may quickly lead to flooding of flood prone and other
low-lying areas due to rapid runoff.
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
iNWS is an experimental service intended for NWS core partners,
including emergency managers, community leaders and other government