Headline:
Flash Flood Warning issued June 22 at 8:34PM EDT until June 22 at 10:00PM EDT by NWS Mount Holly NJ
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
June 22, 2026 - 5:34pm
Expires:
June 22, 2026 - 7:00pm
Description:
FFWPHI
The National Weather Service in Mount Holly has extended the
* Flash Flood Warning for...
Northeastern Delaware County in southeastern Pennsylvania...
Southeastern Montgomery County in southeastern Pennsylvania...
Northwestern Philadelphia County in southeastern Pennsylvania...
* Until 1000 PM EDT.
* At 834 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
* Some locations that may experience flash flooding include...
Philadelphia, Conshohocken, Jenkintown, Narberth, Chestnut Hill,
Germantown, Plymouth Meeting, Bryn Mawr, Trout Lake, Radnor
Township, King Of Prussia and West Conshohocken.
This includes the following highways...
Interstate 476 in Pennsylvania between mile markers 10 and 19.
Interstate 76 in Pennsylvania between mile markers 328 and 339.
Pennsylvania Turnpike between mile markers 329 and 330...and
between mile markers 332 and 334.
Instruction:
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
Area Description:
Delaware, PA; Montgomery, PA; Philadelphia, PA
Forcast Office:
NWS Mount Holly NJ
Sender:
w-nws.webmaster@noaa.gov