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Home Return to list Flash Flood Warning 0103 Issued by the Mount Holly / Philadelphia Forecast Office
Action: New Issued At: 2026-08-05 20:04:35
063
WGUS51 KPHI 060104
FFWPHI
PAC017-029-045-091-060515-
/O.NEW.KPHI.FF.W.0103.260806T0104Z-260806T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
904 PM EDT Wed Aug 5 2026
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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...dont 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.
&&
LAT...LON 4035 7537 4041 7530 4023 7498 4009 7522
4009 7523 4008 7524 4004 7530 3995 7553
4013 7561 4019 7555
FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1-2.5 INCHES IN 1 HOUR
$$
Gorse
Action: Continued Issued At: 2026-08-05 20:30:36
750
WGUS71 KPHI 060130
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
930 PM EDT Wed Aug 5 2026
PAC017-029-045-091-060515-
/O.CON.KPHI.FF.W.0103.000000T0000Z-260806T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bucks PA-Chester PA-Delaware PA-Montgomery PA-
930 PM EDT Wed Aug 5 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM EDT THURSDAY
FOR CENTRAL BUCKS, NORTHEASTERN CHESTER, NORTH CENTRAL DELAWARE AND
CENTRAL MONTGOMERY COUNTIES...
At 930 PM EDT, the public reported thunderstorms producing heavy
rain across portions of the warned area. Roadway flooding has been
reported in the Phoenixville area. This heavy rain in a short period
of time is also moving across central Montgomery County. Between 0.5
and 1 inch of rain has fallen in portions of the warned area. The
expected rainfall rate is 1 to 2.5 inches in 1 hour. Flash flooding
is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Public reported.
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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...dont 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.
&&
LAT...LON 4035 7537 4041 7530 4023 7498 4009 7522
4009 7523 4008 7524 4004 7530 3995 7553
4013 7561 4019 7555
FLASH FLOOD...OBSERVED
EXPECTED RAINFALL RATE...1-2.5 INCHES IN 1 HOUR
$$
Gorse
Action: Continued Issued At: 2026-08-05 23:20:13
598
WGUS71 KPHI 060419
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
1219 AM EDT Thu Aug 6 2026
PAC017-029-045-091-060515-
/O.CON.KPHI.FF.W.0103.000000T0000Z-260806T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bucks PA-Chester PA-Delaware PA-Montgomery PA-
1219 AM EDT Thu Aug 6 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM EDT EARLY THIS
MORNING FOR CENTRAL BUCKS, NORTHEASTERN CHESTER, NORTH CENTRAL
DELAWARE AND CENTRAL MONTGOMERY COUNTIES...
At 1219 AM EDT, the public reported thunderstorms produced heavy
rain earlier tonight across portions of the warned area. Rain is
tapering off, and additional amounts of up to 0.5 inches are
possible in the warned area. Roadway flooding has been reported in
the Phoenixville area. Flash flooding is occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Public reported.
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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...dont 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.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 4035 7537 4041 7530 4023 7498 4009 7522
4009 7523 4008 7524 4004 7530 3995 7553
4013 7561 4019 7555
FLASH FLOOD...OBSERVED
$$
MPS
Action: Expired Issued At: 2026-08-06 00:06:15
620
WGUS71 KPHI 060505
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
105 AM EDT Thu Aug 6 2026
PAC017-029-045-091-060515-
/O.EXP.KPHI.FF.W.0103.000000T0000Z-260806T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bucks PA-Chester PA-Delaware PA-Montgomery PA-
105 AM EDT Thu Aug 6 2026
...FLASH FLOOD WARNING WILL EXPIRE AT 115 AM EDT EARLY THIS MORNING
FOR CENTRAL BUCKS, NORTHEASTERN CHESTER, NORTH CENTRAL DELAWARE AND
CENTRAL MONTGOMERY COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
&&
LAT...LON 4035 7537 4041 7530 4023 7498 4009 7522
4009 7523 4008 7524 4004 7530 3995 7553
4013 7561 4019 7555
$$
MPS
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