Event extended (time). Flash Flood Watch from 9/23/2021 8:00 AM to 9/24/2021 2:00 AM EDT for Southern PA. More information.
Interactive NWS Alert
Radar valid at 200 am EDT, Sep 24th 2021
Including the cities of Chalfont, Honey Brook, Jim Thorpe,
Allentown, Collegeville, Pottstown, Bethlehem, Stroudsburg, Oxford,
Perkasie, Reading, and Easton
927 PM EDT Wed Sep 22 2021
...FLASH FLOOD WATCH NOW IN EFFECT FROM 8 AM EDT THURSDAY THROUGH
LATE THURSDAY NIGHT...
The Flash Flood Watch is now in effect for
* Portions of east central Pennsylvania...northeast Pennsylvania...
and southeast Pennsylvania...including the following areas...in
east central Pennsylvania...Berks, Lehigh, and Northampton. In
northeast Pennsylvania...Carbon and Monroe. In southeast
Pennsylvania...Upper Bucks, Western Chester, and Western
* From 8 AM EDT Thursday through late Thursday night.
* Showers and thunderstorms will develop ahead of and with the
passage of a cold front Thursday morning through Thursday evening.
Rain will be heavy at times. Widespread rainfall totals will range
from 1.5 to 3 inches with locally higher amounts up to 5 inches
possible, especially in the southern Poconos.
* Flash flooding of creeks, streams, urban areas, and poor drainage
areas is possible in the areas of heaviest rain.
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