Alert archive / New Jersey / Flash Flood Warnings in 2019

Flash Flood Warning 23, NWS Philadelphia/Mount Holly

June 19, 2019Philadelphia County, Pennsylvania; 5 counties in New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 19, 2019, 6:49 PM EDT for Philadelphia County, Pennsylvania; 5 counties in New Jersey. It was in force for 4 hr. 10 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 19, 2019, 6:49 PM EDT (22:49 UTC)
Expired
Jun 19, 2019, 10:52 PM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Monmouth County, NJ, Ocean County, NJ, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 40 km from the middle of the area, began a volume at 22:50 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.

What was reported inside it

TimeReportWhereRemark
Jun 19, 7:30 PM EDTFLOOD2 Ssw Fort Dix, NJFLOODING ON JULIUSTOWN ROAD.
Jun 19, 7:30 PM EDTFLOODBrowns Mills, NJSTREET FLOODING OCCURRING.
Jun 19, 7:45 PM EDTFLASH FLOOD2 Ene Vincentown, NJVINCENTOWN-PEMBERTON ROAD CLOSED FROM US ROUTE 206 TO BURRS MILL ROAD DUE TO FLOODING.
Jun 19, 7:55 PM EDTHEAVY RAIN 3.022 Ssw New Egypt, NJ
Jun 19, 8:00 PM EDTFLASH FLOODMedford Twp., NJNJ ROUTE 70 EASTBOUND CLOSED AT NORTH MAIN STREET DUE TO FLOODING.
Jun 19, 8:12 PM EDTFLOOD2 Nw Tabernacle, NJMPING REPORT OF RIVER FLOODING ALONG WITH YARD AND/OR BASEMENT FLOODING.
Jun 19, 8:20 PM EDTHEAVY RAIN 2.41 E Lumberton, NJ
Jun 19, 8:20 PM EDTHEAVY RAIN 2.412 Wsw Medford, NJ
Jun 19, 10:45 PM EDTHEAVY RAIN 5.06Tabernacle, NJDAILY TOTAL.
Jun 19, 10:50 PM EDTHEAVY RAIN 3.58Lake Pine, NJDAILY TOTAL.

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.8 hours before the alert went out and 200 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2019-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2019-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
468 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

098 
WGUS51 KPHI 192249
FFWPHI
NJC005-007-015-025-029-PAC101-200445-
/O.NEW.KPHI.FF.W.0023.190619T2249Z-190620T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
649 PM EDT Wed Jun 19 2019

The National Weather Service in Mount Holly NJ has issued a

* Flash Flood Warning for...
  Northwestern Ocean County in southern New Jersey...
  Northwestern Camden County in southern New Jersey...
  North central Gloucester County in southern New Jersey...
  Central Burlington County in southern New Jersey...
  Southwestern Monmouth County in central New Jersey...
  Southwestern Philadelphia County in southeastern Pennsylvania...

* Until 1245 AM EDT.

* At 648 PM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to one inch of rain has
  already fallen. Flash flooding is expected to begin shortly in the
  areas of heaviest rain.

* Some locations that could experience flooding include...
  Philadelphia, Camden, Gloucester City, Cherry Hill, Evesham, Mount
  Laurel, Deptford, Voorhees, Medford, West Deptford, Lindenwold,
  Lumberton, Bellmawr, Woodbury, Berlin, Tabernacle, Paulsboro,
  Magnolia, Westville and Woodbury Heights.

Additional rainfall amounts in excess of an inch are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other poor drainage areas and low lying spots.

&&

LAT...LON 3988 7432 3978 7518 3985 7525 3987 7521
      3988 7526 3993 7524 3996 7514 3990 7511
      4005 7454 4013 7459 4017 7446

$$

Iovino
3 follow-up statements
751 
WGUS71 KPHI 200002
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
802 PM EDT Wed Jun 19 2019

NJC015-PAC101-200010-
/O.CAN.KPHI.FF.W.0023.000000T0000Z-190620T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gloucester NJ-Philadelphia PA-
802 PM EDT Wed Jun 19 2019

...THE FLASH FLOOD WARNING FOR NORTH CENTRAL GLOUCESTER AND
SOUTHWESTERN PHILADELPHIA COUNTIES IS CANCELLED...

Flooding is no longer expected to pose a threat. Please continue to
heed any remaining road closures.

LAT...LON 3988 7432 3979 7507 3981 7509 3984 7509
      3989 7514 3995 7514 3995 7513 3990 7511
      4005 7454 4013 7459 4017 7446

$$

NJC005-007-025-029-200445-
/O.CON.KPHI.FF.W.0023.000000T0000Z-190620T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ocean NJ-Camden NJ-Burlington NJ-Monmouth NJ-
802 PM EDT Wed Jun 19 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR
NORTHWESTERN OCEAN...NORTHWESTERN CAMDEN...CENTRAL BURLINGTON AND
SOUTHWESTERN MONMOUTH COUNTIES...

At 800 PM EDT, Doppler radar indicated showers and thunderstorms 
producing heavy rain across the warned area. Over two inches of rain 
have already fallen. Flash flooding is occurring in parts of the 
area.

Some locations that will experience flooding include...
Camden, Cherry Hill, Evesham, Mount Laurel, Voorhees, Medford, 
Lumberton, Tabernacle, Presidential Lakes Estates, Pemberton
and Wrightstown.

Additional rainfall amounts in excess of an inch are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other poor drainage areas and low lying spots.

&&

LAT...LON 3988 7432 3979 7507 3981 7509 3984 7509
      3989 7514 3995 7514 3995 7513 3990 7511
      4005 7454 4013 7459 4017 7446

$$

Iovino
226 
WGUS71 KPHI 200159
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
959 PM EDT Wed Jun 19 2019

NJC007-200206-
/O.CAN.KPHI.FF.W.0023.000000T0000Z-190620T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Camden NJ-
959 PM EDT Wed Jun 19 2019

...THE FLASH FLOOD WARNING FOR NORTHWESTERN CAMDEN COUNTY IS
CANCELLED...

Flooding is no longer expected to pose a threat. Please continue to
heed any remaining road closures.

LAT...LON 3988 7432 3981 7491 3988 7493 3990 7495
      3991 7495 3992 7498 3993 7498 4005 7454
      4013 7459 4017 7446

$$

NJC005-025-029-200445-
/O.CON.KPHI.FF.W.0023.000000T0000Z-190620T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ocean NJ-Burlington NJ-Monmouth NJ-
959 PM EDT Wed Jun 19 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR
NORTHWESTERN OCEAN...CENTRAL BURLINGTON AND SOUTHWESTERN MONMOUTH
COUNTIES...

At 955 PM EDT, Doppler radar indicated scattered showers and 
thunderstorms producing heavy rain in parts of the warned area. 
Rainfall totals of 2 to 4 inches have already occurred. There 
remains a good deal of residual flooding and standing water.

Some locations that are experiencing flooding include...
Evesham, Mount Laurel, Medford, Lumberton, Tabernacle, Presidential
Lakes Estates, Pemberton, Wrightstown, Ramblewood, Marlton,
Leisuretowne, Presidential Lakes, Woodruff, Cedar Glen Lakes,
Whiting, Cream Ridge, Browns Mills, Greentree, Barclay-Kingston and
Medford Lakes.

Additional rainfall amounts of up to a half inch are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall has caused flooding of small 
creeks and streams, urban areas, highways, streets and underpasses 
as well as other poor drainage areas and low lying spots.

&&

LAT...LON 3988 7432 3981 7491 3988 7493 3990 7495
      3991 7495 3992 7498 3993 7498 4005 7454
      4013 7459 4017 7446

$$

Iovino
465 
WGUS71 KPHI 200252
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
1052 PM EDT Wed Jun 19 2019

NJC005-025-029-200301-
/O.CAN.KPHI.FF.W.0023.000000T0000Z-190620T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ocean NJ-Burlington NJ-Monmouth NJ-
1052 PM EDT Wed Jun 19 2019

...THE FLASH FLOOD WARNING FOR NORTHWESTERN OCEAN...CENTRAL
BURLINGTON AND SOUTHWESTERN MONMOUTH COUNTIES IS CANCELLED...

The heavy rain has ended. Flood waters are receding. Please continue 
to heed any remaining road closures.

LAT...LON 3988 7432 3981 7491 3988 7493 3990 7495
      3991 7495 3992 7498 3993 7498 4005 7454
      4013 7459 4017 7446

$$

Iovino

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 19, 3:17 AM EDTFlash Flood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more43 hr
Jun 19, 4:11 PM EDTAreal Flood AdvisoryPHIBucks, Montgomery94 min
Jun 19, 4:52 PM EDTAreal Flood AdvisoryPHIBucks, Philadelphia94 min
Jun 19, 6:17 PM EDTFlash Flood WarningPHIBucks, Philadelphia5 hr
Jun 19, 6:56 PM EDTAreal Flood AdvisoryPHIBerks21 min
Jun 19, 7:15 PM EDTFlash Flood WarningPHIBerks2 hr
Jun 18, 8:28 PM EDTAreal Flood AdvisoryPHIBurlington, Ocean34 min
Jun 18, 9:33 PM EDTSpecial Marine WarningPHI42 min
Jun 18, 9:50 PM EDTSpecial Weather StatementPHICape May25 min
Jun 18, 10:15 PM EDTSpecial Weather StatementPHICape May30 min
Jun 18, 10:24 PM EDTSpecial Marine WarningPHI66 min
Jun 18, 11:10 PM EDTAreal Flood WarningPHISomerset4 hr
Jun 19, 3:52 PM EDTSmall Craft AdvisoryPHI50 hr
Jun 19, 6:12 PM EDTRiver Flood WarningPHIBurlington4 days

Nearby

Flash Flood Warnings in New Jersey, 2019Flash Flood Warnings in Pennsylvania, 2019Every flash flood warning in 2019

Sources

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.