Alert archive / New Jersey / Flash Flood Warnings in 2016

Flash Flood Warning 23, NWS Philadelphia/Mount Holly

July 25, 20164 counties in New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 25, 2016, 6:17 PM EDT for 4 counties in New Jersey. It was in force for 4 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
Jul 25, 2016, 6:17 PM EDT (22:17 UTC)
Expired
Jul 25, 2016, 10:15 PM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 46 km from the middle of the area, began a volume at 22:21 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

Brookhaven, NY (KOKX), launched 12:00Z, 10.3 hours before the alert went out and 137 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 2016-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 136 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2016-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
136 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1205 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

161 
WGUS51 KPHI 252217
FFWPHI
NJC021-023-025-035-260215-
/O.NEW.KPHI.FF.W.0023.160725T2217Z-160726T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
617 PM EDT MON JUL 25 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MERCER COUNTY IN CENTRAL NEW JERSEY...
  MONMOUTH COUNTY IN CENTRAL NEW JERSEY...
  SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...

* UNTIL 1015 PM EDT
    
* AT 616 PM 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 IS OCCURRING OR EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  TRENTON...NEW BRUNSWICK...PERTH AMBOY...LONG BRANCH...
  ASBURY PARK...SOMERVILLE...SOMERSET...EDISON...MIDDLETOWN...
  OLD BRIDGE...HOWELL...EAST BRUNSWICK...BRIDGEWATER...
  SOUTH BRUNSWICK...SAYREVILLE...NORTH BRUNSWICK...MARLBORO...
  MANALAPAN...EWING AND CARTERET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4009 7402 4014 7411 4011 7424 4017 7426
      4013 7448 4019 7470 4015 7472 4025 7484
      4042 7480 4043 7475 4070 7472 4063 7442
      4060 7446 4060 7420 4047 7427 4042 7401
      4044 7400 4048 7402 4048 7401 4047 7399

$$

AMC
1 follow-up statement
732 
WGUS71 KPHI 252357
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
757 PM EDT MON JUL 25 2016

NJC021-023-025-035-260215-
/O.CON.KPHI.FF.W.0023.000000T0000Z-160726T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MERCER NJ-MONMOUTH NJ-SOMERSET NJ-MIDDLESEX NJ-
757 PM EDT MON JUL 25 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT FOR
MERCER...MONMOUTH...SOMERSET AND MIDDLESEX COUNTIES...

AT 747 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS HAVE MOSTLY
MOVED AWAY FROM THE AREA. HOWEVER RADAR ESTIMATES UP TO TWO INCHES
OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING HAS BEEN REPORTED AND
MAY CONTINUE THROUGH THE EVENING FOR SOME AREAS.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
TRENTON...NEW BRUNSWICK...PERTH AMBOY...LONG BRANCH...ASBURY PARK...
SOMERVILLE...SOMERSET...EDISON...MIDDLETOWN...OLD BRIDGE...HOWELL...
EAST BRUNSWICK...BRIDGEWATER...SOUTH BRUNSWICK...SAYREVILLE...
NORTH BRUNSWICK...MARLBORO...MANALAPAN...EWING AND CARTERET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE INTO FLOODED ROADWAYS...THE WATER MAY BE DEEPER THAN
YOU THINK.

&&

LAT...LON 4009 7402 4014 7411 4011 7424 4017 7426
      4013 7448 4019 7470 4015 7472 4025 7484
      4042 7480 4043 7475 4070 7472 4063 7442
      4060 7446 4060 7420 4047 7427 4042 7401
      4044 7400 4048 7402 4048 7401 4047 7399

$$

AMC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 4:46 AM EDTSpecial Weather StatementPHIBurlington, Camden, Mercer59 min
Jul 25, 4:54 AM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester51 min
Jul 25, 5:27 AM EDTSpecial Weather StatementPHIBurlington, Ocean63 min
Jul 25, 6:17 AM EDTSpecial Marine WarningPHI88 min
Jul 25, 7:11 AM EDTSpecial Marine WarningPHI64 min
Jul 25, 7:59 AM EDTSpecial Weather StatementPHIOcean61 min
Jul 25, 8:04 AM EDTSpecial Marine WarningPHI56 min
Jul 25, 9:00 AM EDTSpecial Marine WarningPHI60 min
Jul 25, 3:52 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Warren53 min
Jul 25, 4:34 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Sussex, Warren56 min
Jul 25, 4:37 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Somerset38 min
Jul 25, 5:04 PM EDTSevere Thunderstorm WarningPHISussex41 min
Jul 25, 5:15 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Somerset45 min
Jul 25, 5:39 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren46 min
Jul 25, 5:57 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren48 min
Jul 25, 5:58 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth47 min
Jul 25, 6:01 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden44 min
Jul 25, 6:04 PM EDTSpecial Marine WarningPHI56 min
Jul 25, 6:39 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Monmouth, Somerset40 min
Jul 25, 6:43 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Ocean62 min
Jul 25, 6:54 PM EDTSpecial Marine WarningPHI66 min
Jul 25, 6:55 PM EDTAreal Flood AdvisoryPHIBurlington2 hr
Jul 25, 7:12 PM EDTSpecial Weather StatementPHIBurlington, Camden, Ocean63 min
Jul 25, 7:17 PM EDTFlash Flood WarningPHIBurlington, Camden4 hr
Jul 25, 7:53 PM EDTSpecial Weather StatementPHIAtlantic37 min
Jul 25, 7:58 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean44 min

Nearby

Flash Flood Warnings in New Jersey, 2016Every flash flood warning in 2016

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.