Flash Flood Warning 34, NWS Philadelphia/Mount Holly

Issued

Aug 4, 2020, 8:11 AM EDT (12:11 UTC)

Expired

Aug 4, 2020, 12:15 PM EDT

In force

4 hr

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Flood severity

None

Counties Bucks County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA

The Philadelphia radar (KDIX), 93 km from the middle of the area, began a volume at 12:11 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

781 
WGUS51 KPHI 041211
FFWPHI
PAC017-077-091-095-041615-
/O.NEW.KPHI.FF.W.0034.200804T1211Z-200804T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
811 AM EDT Tue Aug 4 2020

The National Weather Service in Mount Holly NJ has issued a

* Flash Flood Warning for...
  Southeastern Lehigh County in eastern Pennsylvania...
  Central Montgomery County in southeastern Pennsylvania...
  Northwestern Bucks County in southeastern Pennsylvania...
  South central Northampton County in eastern Pennsylvania...

* Until 1215 PM EDT.

* At 811 AM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. Flash flooding is ongoing or expected to begin
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  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 could experience flooding include...
  Allentown, Easton, Bethlehem, Lansdale, East Norriton, Quakertown,
  Perkasie, Souderton, Ambler, Hellertown, Chalfont, Hatfield,
  Dublin, Riegelsville, Glendon, Pleasant Valley, Fricks, Lehigh
  University, Springtown and Old Orchard.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 4057 7519 4056 7518 4009 7520 4021 7545
      4066 7543 4066 7519

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-3 INCHES IN 1 HOUR

$$

Kruzdlo

685 
WGUS71 KPHI 041609
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
1209 PM EDT Tue Aug 4 2020

PAC017-077-091-095-041618-
/O.EXP.KPHI.FF.W.0034.000000T0000Z-200804T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lehigh PA-Montgomery PA-Bucks PA-Northampton PA-
1209 PM EDT Tue Aug 4 2020

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN LEHIGH...CENTRAL
MONTGOMERY...NORTHWESTERN BUCKS AND SOUTH CENTRAL NORTHAMPTON
COUNTIES WILL EXPIRE AT 1215 PM EDT...

This Flash Flood Warning will be allowed to expire. It's been 
replaced and updated with another Flash Flood Warning.

LAT...LON 4057 7519 4056 7518 4009 7520 4021 7545
      4066 7543 4066 7519

$$

Kruzdlo

Flash Flood Warnings in Pennsylvania, 2020Every flash flood warning in 2020

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