Alert archive / New Jersey / Flash Flood Warnings in 2013

Flash Flood Warning 65, NWS Philadelphia/Mount Holly

September 2, 2013Burlington County, Camden County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Sep 2, 2013, 10:35 AM EDT for Burlington County, Camden County, New Jersey. It was in force for 5 hr. 4 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
Sep 2, 2013, 10:35 AM EDT (14:35 UTC)
Expired
Sep 2, 2013, 3:31 PM EDT
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Burlington County, NJ, Camden County, NJ

The radar

The Philadelphia radar (KDIX), 41 km from the middle of the area, began a volume at 14:35 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
Sep 2, 11:15 AM EDTFLOODSomerdale, NJSIGNIFICANT STREET FLOODING WITH SEVERAL CARS STUCK IN FLOOD WATERS.
Sep 2, 11:15 AM EDTFLASH FLOODSomerdale, NJSIGNIFICANT STREET FLOODING WITH SEVERAL CARS STUCK IN FLOOD WATERS.
Sep 2, 11:30 AM EDTFLASH FLOODVoorhees, NJKIRKWOOD CREEK ROSE QUICKLY AND FLOODED SOME NEARBY PROPERTIES AND ROADWAYS.
Sep 2, 11:30 AM EDTFLASH FLOODVoorhees, NJSIGNIFICANT FLOODING IN VOORHEES WITH SOME VEHICLES TRAPPED.

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, 2.6 hours before the alert went out and 206 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 2013-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 791 joules per kilogram.LCLLFCEL10008507005003002001001 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 2013-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 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
791 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
538 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

719 
WGUS51 KPHI 021435
FFWPHI
NJC005-007-021730-
/O.NEW.KPHI.FF.W.0065.130902T1435Z-130902T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1035 AM EDT MON SEP 2 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL CAMDEN COUNTY...
  CENTRAL BURLINGTON COUNTY...

* UNTIL 130 PM EDT...

* AT 1030 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM ALONG THE BURLINGTON AND
  CENTRAL CAMDEN COUNTY BORDER.
 
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN
THE WARNED AREA. IN ADDITION MAINLY PRIOR TO NOON DAMAGING WINDS 
ARE ALSO POSSIBLE WITH THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. NEVER ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR IN AN
AUTOMOBILE. TURN AROUND DON'T DROWN!

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. TURN AROUND...DON'T DROWN! NEVER TRY
TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE
RISING WATER MOVE UP TO HIGHER GROUND.

&&

LAT...LON 3969 7463 3971 7471 3973 7473 3972 7477
      3977 7503 3979 7508 3983 7508 3984 7507
      3999 7490 4004 7467

$$

TFG
3 follow-up statements
598 
WGUS71 KPHI 021708
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
108 PM EDT MON SEP 2 2013

NJC005-021716-
/O.CAN.KPHI.FF.W.0065.000000T0000Z-130902T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BURLINGTON NJ-
108 PM EDT MON SEP 2 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL BURLINGTON
COUNTY...

THE EARLIER HEAVY RAIN HAS WEAKENED. THEREFORE...THE FLASH FLOOD 
WARNING HAS BEEN CANCELLED.

LAT...LON 3972 7477 3977 7503 3979 7508 3983 7508
      3992 7498 3989 7493 3980 7491 3978 7489
      3979 7485 3979 7481 3973 7474

$$

NJC007-021730-
/O.CON.KPHI.FF.W.0065.000000T0000Z-130902T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN NJ-
108 PM EDT MON SEP 2 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 PM EDT FOR
CENTRAL CAMDEN COUNTY...

AT 105 PM EDT...DOPPLER RADAR INDICATES THAT THE EARLIER HEAVY RAIN 
HAS DIMINISHED, HOWEVER SOME ADDITIONAL SHOWERS AND EMBEDDED THUNDER 
ARE STILL EXPECTED. IN ADDITION, FLOODING HAS BEEN REPORTED IN 
PORTIONS OF 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 DRAINAGE AREAS AND LOW LYING SPOTS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. FIND AN ALTERNATE ROUTE.

&&

LAT...LON 3972 7477 3977 7503 3979 7508 3983 7508
      3992 7498 3989 7493 3980 7491 3978 7489
      3979 7485 3979 7481 3973 7474

$$

FORECASTER: GORSE
155 
WGUS51 KPHI 021712
FFWPHI
NJC007-022030-
/O.EXT.KPHI.FF.W.0065.000000T0000Z-130902T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
112 PM EDT MON SEP 2 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  CENTRAL CAMDEN COUNTY...

* UNTIL 430 PM EDT...

* AT 110 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS AND SPOTTERS       
  REPORTED ONGOING FLOODING IN PORTIONS OF THE WARNED AREA.

SOME ADDITIONAL SHOWERS AND EMBEDDED THUNDER WILL SLOW THE RECEDING 
OF THE FLOODING IN SOME AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. NEVER ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR IN AN 
AUTOMOBILE. FIND AN ALTERNATE ROUTE.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.

&&

LAT...LON 3972 7477 3977 7503 3979 7508 3983 7508
      3992 7498 3989 7493 3980 7491 3978 7489
      3979 7485 3979 7481 3973 7474

$$

FORECASTER: GORSE
803 
WGUS71 KPHI 021931
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
331 PM EDT MON SEP 2 2013

NJC007-021940-
/O.CAN.KPHI.FF.W.0065.000000T0000Z-130902T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN NJ-
331 PM EDT MON SEP 2 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL CAMDEN
COUNTY...

THE WATERS FROM THE EARLIER HEAVY RAINS ARE GENERALLY RECEDING. 
THEREFORE...THE FLASH FLOOD WARNING HAS BEEN CANCELLED. SOME 
WATERWAYS HOWEVER ARE RUNNING HIGH, AND AN AREAL FLOOD WARNING WILL
BE ISSUED TO ADDRESS THIS.


LAT...LON 3972 7477 3977 7503 3979 7508 3983 7508
      3992 7498 3989 7493 3980 7491 3978 7489
      3979 7485 3979 7481 3973 7474

$$

FORECASTER: GORSE

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 8:02 PM EDTSpecial Weather StatementPHIWarren58 min
Sep 2, 7:09 AM EDTAreal Flood AdvisoryPHIWarren4 hr
Sep 2, 7:16 AM EDTSpecial Weather StatementPHIHunterdon, Morris, Sussex89 min
Sep 2, 7:35 AM EDTAreal Flood AdvisoryPHIHunterdon6 hr
Sep 2, 7:58 AM EDTSpecial Weather StatementPHIHunterdon, Somerset62 min
Sep 2, 8:17 AM EDTAreal Flood AdvisoryPHIMorris, Somerset3 hr
Sep 2, 8:58 AM EDTAreal Flood AdvisoryPHIAtlantic, Cape May, Cumberland3 hr
Sep 2, 9:37 AM EDTAreal Flood AdvisoryPHICamden113 min
Sep 2, 9:52 AM EDTFlash Flood WarningPHIBurlington, Camden, Gloucester4 hr
Sep 2, 10:03 AM EDTAreal Flood AdvisoryPHICamden, Cumberland, Gloucester, Salem4 hr
Sep 2, 10:16 AM EDTSevere Thunderstorm WarningPHIBurlington, Camden74 min
Sep 2, 10:50 AM EDTAreal Flood AdvisoryPHIGloucester, Salem3 hr
Sep 2, 11:31 AM EDTAreal Flood AdvisoryPHIBurlington, Ocean3 hr
Sep 2, 12:28 PM EDTFlash Flood WarningPHIGloucester, Salem3 hr
Sep 2, 12:44 PM EDTFlash Flood WarningPHIHunterdon, Mercer4 hr
Sep 2, 12:47 PM EDTSpecial Weather StatementPHIHunterdon58 min
Sep 2, 2:03 PM EDTAreal Flood AdvisoryPHIMiddlesex, Somerset3 hr
Sep 2, 2:42 PM EDTSpecial Weather StatementPHIAtlantic48 min
Sep 2, 3:35 PM EDTAreal Flood WarningPHICamden9 hr
Sep 2, 3:44 PM EDTAreal Flood WarningPHIGloucester14 hr

Nearby

Flash Flood Warnings in New Jersey, 2013Every flash flood warning in 2013

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.