Alert archive / New Jersey / Flash Flood Warnings in 2015

Flash Flood Warning 34, 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, 10:07 AM EDT for Cumberland County, Salem County, New Jersey. It was in force for 4 hr. 1 report 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, 10:07 AM EDT (14:07 UTC)
Expired: Jul 14, 2015, 2:00 PM 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 14:09 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

Time	Report	Where	Remark
Jul 14, 11:11 AM EDT	FLASH FLOOD	Elmer, NJ	ROUTE 40 FLOODED

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

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 2.1 hours before the alert went out and 82 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 844 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 547 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 79 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

177 
WGUS51 KPHI 141407
FFWPHI
NJC011-033-141800-
/O.NEW.KPHI.FF.W.0034.150714T1407Z-150714T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1007 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 200 PM EDT
    
* AT 958 AM EDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS PORTIONS 
  OF THE WARNED AREA. OVER THREE INCHES OF RAIN HAVE FALLEN IN 
  SEABROOK FARMS AND UPPER DEERFIELD TOWNSHIP. 

  CURRENTLY...THE HEAVIEST WAS FALLING ACROSS SALEM COUNTY NEAR THE  
  ELMER, OLIVET AND CENTERTON AREAS. EARLIER THIS MORNING...LOCAL    
  LAW ENFORCEMENT REPORTED HIGHWAY FLOODING IN UPPER DEERFIELD       
  TOWNSHIP IN THE VICINITY OF ROUTE 77. 
 
  WHILE THE STORMS HAVE ENDED IN SOME LOCATIONS, RUNOFF MAY STILL BE 
  DEEP ENOUGH TO CAUSE FLOODING AND FORCE DETOURS. DO NOT GO AROUND 
  CONES AND BARRELS.
  
* SOME LOCATIONS THAT WILL EXPERIENCE 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. 

&&

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

$$

KRUZDLO

2 follow-up statements

415 
WGUS71 KPHI 141602
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1202 PM EDT TUE JUL 14 2015

NJC011-141607-
/O.CAN.KPHI.FF.W.0034.000000T0000Z-150714T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUMBERLAND NJ-
1202 PM EDT TUE JUL 14 2015

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

MOST OF THE HEAVY RAIN HAS ENDED. LOCAL LAW ENFORCEMENT REPORTED 
THAT ROUTE 77 IN THE VICINITY OF UPPER DEERFIELD TOWNSHIP HAS 
REOPENED.

LAT...LON 3955 7507 3951 7508 3948 7507 3947 7509
      3956 7523 3963 7517 3956 7507

$$

NJC033-141800-
/O.CON.KPHI.FF.W.0034.000000T0000Z-150714T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SALEM NJ-
1202 PM EDT TUE JUL 14 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 PM EDT FOR
EAST CENTRAL SALEM COUNTY...

AT 1157 AM EDT...LOCAL LAW ENFORCEMENT REPORTED THAT ROUTE 40 IN 
ELMER IS FLOODED. OVER THREE INCHES OF RAIN HAVE FALLEN IN THIS 
AREA THIS MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

DRIVING INTO FLOOD WATERS COULD PUT YOUR LIFE AT RISK AND COST YOU
THOUSANDS OF DOLLARS IN VEHICLE REPAIRS. FLOOD WATERS MAY BE DEEPER
THAT YOU THINK. TURN AROUND AND FIND AN ALTERNATE ROUTE.

&&

LAT...LON 3955 7507 3951 7508 3948 7507 3947 7509
      3956 7523 3963 7517 3956 7507

$$

KRUZDLO

885 
WGUS71 KPHI 141751
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
151 PM EDT TUE JUL 14 2015

NJC033-141800-
/O.EXP.KPHI.FF.W.0034.000000T0000Z-150714T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SALEM NJ-
151 PM EDT TUE JUL 14 2015

...THE FLASH FLOOD WARNING FOR EAST CENTRAL SALEM COUNTY WILL EXPIRE
AT 200 PM EDT...

FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A
THREAT TO LIFE OR PROPERTY. 

LAT...LON 3955 7507 3951 7508 3948 7507 3947 7509
      3956 7523 3963 7517 3956 7507

$$

KRUZDLO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 4:11 AM EDT	Special Weather Statement	PHI	Salem	34 min
Jul 14, 4:49 AM EDT	Special Weather Statement	PHI	Salem	41 min
Jul 14, 5:21 AM EDT	Areal Flood Advisory	PHI	Cumberland, Salem	4 hr
Jul 14, 5:55 AM EDT	Flash Flood Warning	PHI	Cumberland, Salem	4 hr
Jul 14, 9:40 AM EDT	Areal Flood Advisory	PHI	Salem	4 hr
Jul 14, 10:23 AM EDT	Areal Flood Advisory	PHI	Gloucester	4 hr
Jul 14, 10:48 AM EDT	Areal Flood Advisory	PHI	Atlantic, Camden	4 hr
Jul 14, 10:48 AM EDT	Special Weather Statement	PHI	Camden	27 min
Jul 14, 10:54 AM EDT	Special Weather Statement	PHI	Salem	36 min
Jul 14, 11:17 AM EDT	Special Weather Statement	PHI	Atlantic	28 min
Jul 14, 11:37 AM EDT	Special Weather Statement	PHI	Gloucester	23 min
Jul 14, 11:39 AM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Cumberland	4 hr
Jul 14, 11:52 AM EDT	Areal Flood Advisory	PHI	Mercer	4 hr
Jul 14, 11:59 AM EDT	Special Weather Statement	PHI	Cumberland	31 min
Jul 14, 1:14 PM EDT	Areal Flood Advisory	PHI	Ocean	4 hr
Jul 14, 1:16 PM EDT	Special Weather Statement	PHI	Ocean	44 min
Jul 14, 1:22 PM EDT	Areal Flood Advisory	PHI	Middlesex, Monmouth	4 hr
Jul 14, 1:52 PM EDT	Special Weather Statement	PHI	Ocean	23 min
Jul 14, 3:32 PM EDT	Small Craft Advisory	PHI		56 hr
Jul 14, 5:47 PM EDT	Special Weather Statement	PHI	Mercer	43 min
Jul 14, 6:20 PM EDT	Special Weather Statement	PHI	Burlington	40 min

Nearby

Flash Flood Warnings in New Jersey, 2015 Every 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.