Alert archive / New Jersey / Flash Flood Warnings in 2013

Flash Flood Warning 17, NWS Philadelphia/Mount Holly

June 24, 20135 counties in New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 24, 2013, 3:42 PM EDT for 5 counties in New Jersey. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 24, 2013, 3:42 PM EDT (19:42 UTC)
Expired
Jun 24, 2013, 6:45 PM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Burlington County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 28 km from the middle of the area, began a volume at 19:42 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.

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.7 hours before the alert went out and 146 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, Phillips Aaf/Abe, MD at 12:00Z on 2013-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 705 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, Phillips Aaf/Abe, MD at 12:00Z on 2013-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
705 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
1279 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
55 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.

319 
WGUS51 KPHI 241942
FFWPHI
NJC005-021-023-025-029-242245-
/O.NEW.KPHI.FF.W.0017.130624T1942Z-130624T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
342 PM EDT MON JUN 24 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN MERCER COUNTY...
  SOUTH CENTRAL MIDDLESEX COUNTY...
  NORTH CENTRAL BURLINGTON COUNTY...
  SOUTHWESTERN MONMOUTH COUNTY...
  NORTHWESTERN OCEAN COUNTY...

* UNTIL 645 PM EDT...

* AT 334 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  UP TO 3 INCHES OF RAIN IN PORTIONS OF CENTRAL NEW JERSEY NEAR THE  
  BORDERS OF BURLINGTON...MERCER...MONMOUTH...AND OCEAN COUNTIES.    
  WITH ADDITIONAL RAIN ON THE WAY...A FLASH FLOOD WARNING HAS BEEN   
  ISSUED.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RURAL AREAS
  OF NORTH CENTRAL BURLINGTON...NORTHWESTERN OCEAN...SOUTH CENTRAL
  MIDDLESEX...SOUTHEASTERN MERCER AND SOUTHWESTERN MONMOUTH COUNTIES.

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 IN THE WARNED AREA SHOULD 
TAKE IMMEDIATE PRECAUTIONS. NEVER ATTEMPT TO CROSS SWIFTLY 
FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR IN AN 
AUTOMOBILE. TURN AROUND DON'T DROWN!

&&

LAT...LON 3995 7458 4012 7479 4013 7476 4013 7474
      4016 7472 4019 7476 4020 7476 4040 7439
      4019 7419

$$

FORECASTER:JJM
1 follow-up statement
480 
WGUS71 KPHI 242136
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
536 PM EDT MON JUN 24 2013

NJC005-021-023-025-029-242146-
/O.CAN.KPHI.FF.W.0017.000000T0000Z-130624T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MERCER NJ-MIDDLESEX NJ-BURLINGTON NJ-MONMOUTH NJ-OCEAN NJ-
536 PM EDT MON JUN 24 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHWESTERN
OCEAN...SOUTHWESTERN MONMOUTH...NORTH CENTRAL BURLINGTON...SOUTH
CENTRAL MIDDLESEX AND SOUTHEASTERN MERCER COUNTIES...

THE WATERS FROM THE EARLIER HEAVY RAINS ARE RECEDING AND FLOOD WATERS
NO LONGER POSE A THREAT TO LIFE OR PROPERTY. THEREFORE...THE FLASH
FLOOD WARNING HAS BEEN CANCELLED.

WATER IS RECEDING...BUT A FEW MINOR FLOODING PROBLEMS MAY 
CONTINUE FOR AN HOUR OR TWO.

LAT...LON 3995 7458 4012 7479 4013 7476 4013 7474
      4016 7472 4019 7476 4020 7476 4040 7439
      4019 7419

$$

FORECASTER: JJM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 2:32 PM EDTSpecial Weather StatementPHIBurlington, Camden, Gloucester, Ocean58 min
Jun 24, 3:23 PM EDTSpecial Weather StatementPHIBurlington, Camden, Gloucester, Monmouth52 min
Jun 24, 3:25 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 2 more3 hr
Jun 24, 3:40 PM EDTSpecial Weather StatementPHIHunterdon, Warren50 min
Jun 24, 4:03 PM EDTSpecial Marine WarningPHI117 min
Jun 24, 4:16 PM EDTSpecial Weather StatementPHIOcean59 min
Jun 24, 4:28 PM EDTSevere Thunderstorm WarningPHIOcean62 min
Jun 24, 5:18 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren42 min
Jun 24, 5:59 PM EDTSpecial Weather StatementPHIHunterdon31 min
Jun 24, 6:29 PM EDTSpecial Weather StatementPHISussex31 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.