Bulletin: The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for…
Northwestern Burlington County in southern New Jersey…
Northwestern Camden County in southern New Jersey…
North Central Gloucester County in southern New Jersey…
Northeastern Delaware County in southeastern Pennsylvania…
Southeastern Montgomery County in southeastern Pennsylvania…
Philadelphia County in southeastern Pennsylvania…

* Until 1045 PM EDT.

* At 751 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. The expected rainfall rate is
1.5 to 2 inches in 1 hour. Flash flooding is ongoing or expected
to begin shortly.

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, Camden, Gloucester City, Norristown, Willingboro,
West Norriton, East Norriton, Yeadon, Riverside, Conshohocken,
Palmyra and Hatboro.

People attending Philadelphia Stadium and Lemon Hill should seek
shelter immediately.

This includes the following highways…
Interstate 476 in Pennsylvania between mile markers 15 and 19.
Interstate 76 in Pennsylvania between mile markers 330 and 351.
Interstate 95 in Pennsylvania between mile markers 12 and 33.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey between mile markers 1 and 4.
Northeast Extension between mile markers 21 and 25.
Interstate 76 in New Jersey between mile markers 2 and 3.
Pennsylvania Turnpike between mile markers 329 and 345.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

Turn around…don’t drown when encountering flooded roads. Most
flood deaths occur in vehicles.

&&

FLASH FLOOD…RADAR INDICATED;
EXPECTED RAINFALL RATE…1.5-2 INCHES IN 1 HOUR

Info:

Type: Flash Flood Warning

start_time_local: 2026-06-28T19:51:00-04:00

end_time_local: 2026-06-28T22:45:00-04:00

county_name: Montgomery County

state: PA

headline: Flash Flood Warning from SUN 7:51 PM EDT until SUN 10:45 PM EDT

county_fips:

category: Met

url:

urgency: Immediate

severity: Severe

certainty: Likely

geographicname: Montgomery County

state_name: Pennsylvania