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Home Return to list Flash Flood Warning 0009 Issued by the Mount Holly / Philadelphia Forecast Office
Action: New Issued At: 2026-06-22 17:03:13
866
WGUS51 KPHI 222202
FFWPHI
PAC045-091-101-230100-
/O.NEW.KPHI.FF.W.0009.260622T2202Z-260623T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
602 PM EDT Mon Jun 22 2026
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Northeastern Delaware County in southeastern Pennsylvania...
Southeastern Montgomery County in southeastern Pennsylvania...
Northwestern Philadelphia County in southeastern Pennsylvania...
* Until 900 PM EDT.
* At 602 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 1.5 inches of
rain have fallen. The expected rainfall rate is 1 to 2 inches in 1
hour. Additional rainfall amounts of 0.5 to 1.5 inches are
possible in the warned area. 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...dont drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4011 7530 4014 7514 4003 7508 3999 7537
4005 7539 4006 7537 4007 7536 4007 7537
4007 7538 4006 7539 4007 7540 4008 7540
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
$$
MJL
Action: Time Extended Issued At: 2026-06-22 19:34:17
769
WGUS51 KPHI 230034
FFWPHI
PAC045-091-101-230200-
/O.EXT.KPHI.FF.W.0009.000000T0000Z-260623T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
834 PM EDT Mon Jun 22 2026
The National Weather Service in Mount Holly has extended the
* Flash Flood Warning for...
Northeastern Delaware County in southeastern Pennsylvania...
Southeastern Montgomery County in southeastern Pennsylvania...
Northwestern Philadelphia County in southeastern Pennsylvania...
* Until 1000 PM EDT.
* At 834 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
* Some locations that may experience flash flooding include...
Philadelphia, Conshohocken, Jenkintown, Narberth, Chestnut Hill,
Germantown, Plymouth Meeting, Bryn Mawr, Trout Lake, Radnor
Township, King Of Prussia and West Conshohocken.
This includes the following highways...
Interstate 476 in Pennsylvania between mile markers 10 and 19.
Interstate 76 in Pennsylvania between mile markers 328 and 339.
Pennsylvania Turnpike between mile markers 329 and 330...and
between mile markers 332 and 334.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...dont drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4011 7530 4014 7514 4003 7508 3999 7537
4005 7539 4006 7537 4007 7536 4007 7537
4007 7538 4006 7539 4007 7540 4008 7540
FLASH FLOOD...RADAR INDICATED
$$
MJL
Action: Continued Issued At: 2026-06-22 20:04:33
649
WGUS71 KPHI 230104
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
904 PM EDT Mon Jun 22 2026
PAC045-091-101-230200-
/O.CON.KPHI.FF.W.0009.000000T0000Z-260623T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Delaware PA-Montgomery PA-Philadelphia PA-
904 PM EDT Mon Jun 22 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 10 PM EDT THIS
EVENING FOR NORTHEASTERN DELAWARE, SOUTHEASTERN MONTGOMERY AND
NORTHWESTERN PHILADELPHIA COUNTIES...
At 904 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between 1
and 2.5 inches of rain have fallen. Flooding impacts will continue,
but no additional rainfall is expected. Flash flooding is already
occurring.
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, 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.
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.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4011 7530 4014 7514 4003 7508 3999 7537
4005 7539 4006 7537 4007 7536 4007 7537
4007 7538 4006 7539 4007 7540 4008 7540
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
Guzzo
Action: Expired Issued At: 2026-06-22 20:54:20
036
WGUS71 KPHI 230153
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
953 PM EDT Mon Jun 22 2026
PAC045-091-101-230203-
/O.EXP.KPHI.FF.W.0009.000000T0000Z-260623T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Delaware PA-Montgomery PA-Philadelphia PA-
953 PM EDT Mon Jun 22 2026
...FLASH FLOOD WARNING WILL EXPIRE AT 10 PM EDT THIS EVENING FOR
NORTHEASTERN DELAWARE, SOUTHEASTERN MONTGOMERY AND NORTHWESTERN
PHILADELPHIA COUNTIES...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
A Flood Watch remains in effect until 600 AM EDT Tuesday for
portions of northern Delaware, New Jersey, and southeast
Pennsylvania.
&&
LAT...LON 4011 7530 4014 7514 4003 7508 3999 7537
4005 7539 4006 7537 4007 7536 4007 7537
4007 7538 4006 7539 4007 7540 4008 7540
$$
Guzzo
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