Alert archive / New Jersey / Flash Flood Warnings in 2015

Flash Flood Warning 33, NWS Philadelphia/Mount Holly

July 14, 2015Cumberland County, Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 14, 2015, 5:55 AM EDT for Cumberland County, Salem County, New Jersey. It was in force for 4 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
Jul 14, 2015, 5:55 AM EDT (09:55 UTC)
Expired
Jul 14, 2015, 10:00 AM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Cumberland County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 79 km from the middle of the area, began a volume at 09:55 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
Jul 14, 6:05 AM EDTFLASH FLOODUpper Deerfield Twp, NJROUTE 77 FLOODED AND CLOSED.
Jul 14, 7:00 AM EDTHEAVY RAIN 3.34Upper Deerfield Twp, NJBACKYARD POND OVERFLOWING
Jul 14, 8:00 AM EDTHEAVY RAIN 3.41Seabrook Farms, NJ
Jul 14, 9:38 AM EDTHEAVY RAIN 3.92Upper Deerfield Twp, NJ

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

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 9.9 hours before the alert went out and 177 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, Wallops Is Stn, VA at 00:00Z on 2015-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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, Wallops Is Stn, VA at 00:00Z on 2015-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.1939Sfc1 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
5 J/kg
Mixed-layer CIN
-127 J/kg
Mixed-layer LCL
1188 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

450 
WGUS51 KPHI 140955
FFWPHI
NJC011-033-141400-
/O.NEW.KPHI.FF.W.0033.150714T0955Z-150714T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
555 AM EDT TUE JUL 14 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL SALEM COUNTY IN SOUTHERN NEW JERSEY...
  NORTHWESTERN CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 1000 AM EDT
    
* AT 554 AM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  VINELAND...BRIDGETON...ELMER...SHILOH...SEABROOK FARMS...
  ROSENHAYN...OLIVET AND CENTERTON.

ADDITIONAL RAINFALL AMOUNTS OF UP TO TWO INCHES ARE POSSIBLE IN THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 3952 7501 3940 7521 3947 7531 3963 7517

$$

SFJ
3 follow-up statements
577 
WGUS71 KPHI 141041
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
641 AM EDT TUE JUL 14 2015

NJC011-033-141400-
/O.CON.KPHI.FF.W.0033.000000T0000Z-150714T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SALEM NJ-CUMBERLAND NJ-
641 AM EDT TUE JUL 14 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 AM EDT FOR
EAST CENTRAL SALEM AND NORTHWESTERN CUMBERLAND COUNTIES...

AT 639 AM EDT...DOPPLER RADAR INDICATED THE HEAVIEST RAIN HAD LEFT 
THE WARNED AREA. HOWEVER...RUNOFF WILL BE SLOW TO RECEDE. 
THEREFORE...THE FLASH FLOOD WARNING REMAINS IN EFFECT. UP TO THREE 
INCHES OF RAIN HAVE ALREADY FALLEN. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
VINELAND...BRIDGETON...ELMER...SHILOH...SEABROOK FARMS...ROSENHAYN...
OLIVET AND CENTERTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3952 7501 3940 7521 3947 7531 3963 7517

$$

SFJ
611 
WGUS71 KPHI 141131
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
731 AM EDT TUE JUL 14 2015

NJC011-033-141400-
/O.CON.KPHI.FF.W.0033.000000T0000Z-150714T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SALEM NJ-CUMBERLAND NJ-
731 AM EDT TUE JUL 14 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 AM EDT FOR
EAST CENTRAL SALEM AND NORTHWESTERN CUMBERLAND COUNTIES...

AT 727 AM EDT...LOCAL LAW ENFORCEMENT REPORTED DEPARTMENT OF 
TRANSPORTATION RESPONSE TO SOME HIGHWAY FLOODING IN UPPER DEERFIELD 
TOWNSHIP IN THE VICINITY OF ROUTE 77.

WHILE THE STORMS HAVE ENDED FOR THE TIME BEING,  RUNOFF IN PORTIONS 
OF THE WARNING AREA MAY STILL BE DEEP ENOUGH TO CAUSE FLOODING AND 
FORCE DETOURS TO YOUR DESTINATION.   

SOME LOCATIONS THAT MAY BE EXPERIENCING RUNOFF FLOODING INCLUDE... 
VINELAND...BRIDGETON...ELMER...SHILOH...SEABROOK 
FARMS...ROSENHAYN... OLIVET AND CENTERTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH. 

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3952 7501 3940 7521 3947 7531 3963 7517

$$

DRAG
359 
WGUS71 KPHI 141308
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
908 AM EDT TUE JUL 14 2015

NJC011-033-141400-
/O.CON.KPHI.FF.W.0033.000000T0000Z-150714T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SALEM NJ-CUMBERLAND NJ-
908 AM EDT TUE JUL 14 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 AM EDT FOR
EAST CENTRAL SALEM AND NORTHWESTERN CUMBERLAND COUNTIES...

AT 906 AM EDT...DOPPLER RADAR INDICATED NEW HEAVY SHOWERS DEVELOPING 
IN THE WARNED AREA.  SEABROOK FARMS REPORTED 3.41 INCHES OF RAIN 
EARLY TODAY. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
VINELAND...BRIDGETON...ELMER...SHILOH...SEABROOK FARMS...ROSENHAYN...
OLIVET AND CENTERTON.

ADDITIONAL RAINFALL AMOUNTS OF ONE HALF INCH MAY OCCUR BETWEEN 
NOW AND 10 AM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH. 

&&

LAT...LON 3952 7501 3940 7521 3947 7531 3963 7517

$$

DRAG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 4:11 AM EDTSpecial Weather StatementPHISalem34 min
Jul 14, 4:49 AM EDTSpecial Weather StatementPHISalem41 min
Jul 14, 5:21 AM EDTAreal Flood AdvisoryPHICumberland, Salem4 hr
Jul 14, 9:40 AM EDTAreal Flood AdvisoryPHISalem4 hr
Jul 14, 10:07 AM EDTFlash Flood WarningPHICumberland, Salem4 hr
Jul 14, 10:23 AM EDTAreal Flood AdvisoryPHIGloucester4 hr
Jul 14, 10:48 AM EDTAreal Flood AdvisoryPHIAtlantic, Camden4 hr
Jul 14, 10:48 AM EDTSpecial Weather StatementPHICamden27 min
Jul 14, 10:54 AM EDTSpecial Weather StatementPHISalem36 min
Jul 14, 11:17 AM EDTSpecial Weather StatementPHIAtlantic28 min
Jul 14, 11:37 AM EDTSpecial Weather StatementPHIGloucester23 min
Jul 14, 11:39 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Cumberland4 hr
Jul 14, 11:52 AM EDTAreal Flood AdvisoryPHIMercer4 hr
Jul 14, 11:59 AM EDTSpecial Weather StatementPHICumberland31 min
Jul 14, 1:14 PM EDTAreal Flood AdvisoryPHIOcean4 hr
Jul 14, 1:16 PM EDTSpecial Weather StatementPHIOcean44 min
Jul 14, 1:22 PM EDTAreal Flood AdvisoryPHIMiddlesex, Monmouth4 hr
Jul 14, 1:52 PM EDTSpecial Weather StatementPHIOcean23 min
Jul 14, 3:32 PM EDTSmall Craft AdvisoryPHI56 hr
Jul 14, 5:47 PM EDTSpecial Weather StatementPHIMercer43 min
Jul 14, 6:20 PM EDTSpecial Weather StatementPHIBurlington40 min

Nearby

Flash Flood Warnings in New Jersey, 2015Every flash flood warning in 2015

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.