Headline:
Flash Flood Warning issued August 5 at 4:57PM EDT until August 5 at 6:30PM EDT by NWS Mount Holly NJ
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
August 5, 2026 - 1:57pm
Expires:
August 5, 2026 - 3:30pm
Description:
FFWPHI
The National Weather Service in Mount Holly has extended the
* Flash Flood Warning for...
Eastern Delaware County in southeastern Pennsylvania...
South Central Montgomery County in southeastern Pennsylvania...
Western Philadelphia County in southeastern Pennsylvania...
* Until 630 PM EDT.
* At 457 PM EDT, Doppler radar and automated rain gauges indicated
that heavy rain was falling across the warned area. Up to 2 inches
of rain have fallen. Additional rainfall amounts up to 0.5 inches
are possible in the warned area. Flash flooding has already been
occurring.
HAZARD...Flash flooding caused by heavy rain.
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, Chester, Yeadon, Conshohocken, Folcroft, Swarthmore,
Narberth, National Park, East Lansdowne, Morris Park, Drexel Hill
and Roxborough.
This includes the following highways...
Interstate 476 in Pennsylvania between mile markers 0 and 13.
Interstate 76 in Pennsylvania between mile markers 333 and 350.
Interstate 95 in Pennsylvania between mile markers 5 and 18.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
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