Headline:
Flash Flood Warning issued August 5 at 9:04PM EDT until August 6 at 1:15AM EDT by NWS Mount Holly NJ
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
August 5, 2026 - 6:04pm
Expires:
August 5, 2026 - 10:15pm
Description:
FFWPHI
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Central Bucks County in southeastern Pennsylvania...
Northeastern Chester County in southeastern Pennsylvania...
North Central Delaware County in southeastern Pennsylvania...
Central Montgomery County in southeastern Pennsylvania...
* Until 115 AM EDT.
* At 904 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
0.5 and 1 inch of rain has fallen across parts of the warned area.
The expected rainfall rate is 1 to 2.5 inches in 1 hour. Flash
flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
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, Norristown, Phoenixville, Lansdale, West Norriton,
East Norriton, Perkasie, Doylestown, Conshohocken, Hatboro,
Souderton and Ambler.
This includes the following highways...
Interstate 476 in Pennsylvania between mile markers 12 and 19.
Interstate 76 in Pennsylvania between mile markers 327 and 334.
Northeast Extension between mile markers 21 and 36.
Pennsylvania Turnpike between mile markers 317 and 344.
Instruction:
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Area Description:
Bucks, PA; Chester, PA; Delaware, PA; Montgomery, PA
Forcast Office:
NWS Mount Holly NJ
Sender:
w-nws.webmaster@noaa.gov