Flash Flood Warning 47, NWS Philadelphia/Mount Holly

Issued

Jul 9, 2023, 5:12 PM EDT (21:12 UTC)

Expired

Jul 9, 2023, 10:15 PM EDT

In force

5 hr

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Flood severity

None

Counties Bucks County, PA, Montgomery County, PA

The Philadelphia radar (KDIX), 86 km from the middle of the area, began a volume at 21:13 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

822 
WGUS51 KPHI 092112
FFWPHI
PAC017-091-100215-
/O.NEW.KPHI.FF.W.0047.230709T2112Z-230710T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
512 PM EDT Sun Jul 9 2023

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Central Bucks County in southeastern Pennsylvania...
  Central Montgomery County in southeastern Pennsylvania...

* Until 1015 PM EDT.

* At 512 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 0.5 and 1 inch of rain 
  has fallen. Additional rainfall amounts of 1 to 3 inches are 
  possible in the warned area. 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...
  Norristown, Lansdale, West Norriton, East Norriton, Quakertown, 
  Perkasie, Doylestown, Souderton, Bedminster, Ambler, Collegeville, 
  and Chalfont.

This includes the following highways...
	Pennsylvania Turnpike between mile markers 331 and 334.
	Interstate 476 in Pennsylvania near mile marker 19.
	Northeast Extension between mile markers 21 and 38.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4013 7550 4016 7549 4034 7543 4041 7534
      4050 7527 4055 7524 4057 7519 4056 7516
      4058 7514 4057 7510 4054 7507 4049 7506
      4044 7507 4036 7506 4022 7516 4009 7528
      4011 7547 4012 7546 4013 7547

FLASH FLOOD...RADAR INDICATED

$$

Hoeflich

911 
WGUS71 KPHI 100205
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
1005 PM EDT Sun Jul 9 2023

PAC017-091-100215-
/O.EXP.KPHI.FF.W.0047.000000T0000Z-230710T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bucks PA-Montgomery PA-
1005 PM EDT Sun Jul 9 2023

...FLASH FLOOD WARNING WILL EXPIRE AT 1015 PM EDT THIS EVENING FOR 
CENTRAL BUCKS AND CENTRAL MONTGOMERY COUNTIES...

Flood waters have receded. The heavy rain has ended. Flooding is no 
longer expected to pose a threat.

A Flood Watch remains in effect until 1200 AM EDT for portions of 
east central Pennsylvania...northeast Pennsylvania...and southeast 
Pennsylvania.

A Flood Watch remains in effect until 1200 AM EDT for portions of 
northern Delaware...northeast Maryland...southern New Jersey...and 
southeast Pennsylvania.

A Flood Watch remains in effect until 600 AM EDT Monday for portions 
of central New Jersey...northern New Jersey...and northwest New 
Jersey.

LAT...LON 4013 7550 4016 7549 4034 7543 4041 7534
      4050 7527 4055 7524 4057 7519 4056 7516
      4058 7514 4057 7510 4054 7507 4049 7506
      4044 7507 4036 7506 4022 7516 4009 7528
      4011 7547 4012 7546 4013 7547

$$

Hoeflich

Flash Flood Warnings in Pennsylvania, 2023Every flash flood warning in 2023

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.