Alert archive / New Jersey / Flash Flood Warnings in 2014

Flash Flood Warning 23, NWS Philadelphia/Mount Holly

July 3, 2014Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 3, 2014, 6:42 PM EDT for Sussex County, New Jersey. It was in force for 4 hr. 2 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 3, 2014, 6:42 PM EDT (22:42 UTC)
Expired
Jul 3, 2014, 10:45 PM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

County Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 147 km from the middle of the area, began a volume at 22:42 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.

What was reported inside it

TimeReportWhereRemark
Jul 3, 8:32 PM EDTHEAVY RAIN 3Sussex, NJOVER 3 INCHES SINCE 5PM.
Jul 3, 8:32 PM EDTHEAVY RAIN 3.26Sussex, NJ3.26 INCHES OF RAIN SINCE 5 PM.

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, 10.7 hours before the alert went out and 162 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 2014-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 708 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 2014-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
708 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
889 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

560 
WGUS51 KPHI 032242
FFWPHI
NJC037-040245-
/O.NEW.KPHI.FF.W.0023.140703T2242Z-140704T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
642 PM EDT THU JUL 3 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  THIS INCLUDES THE CITY OF HIGH POINT...

* UNTIL 1045 PM EDT

* AT 632 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS SHOWING 
  THUNDERSTORMS ACROSS THE WARNED AREA. THESE THUNDERSTORMS WERE   
  PRODUCING HEAVY RAIN. ONE TO THREE INCHES PER HOUR CAN BE EXPECTED 
  WITH THE MOST INTENSE STORMS. THIS AMOUNT OF RAIN IN A ONE HOUR    
  TIME FRAME WILL LEAD TO FLOODING. SOME OF THE FLOODING WILL        
  DEVELOP QUICKLY.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MONTAGUE
  AND HIGH POINT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. MOVE TO HIGHER GROUND.

&&

LAT...LON 4124 7444 4123 7444 4114 7492 4115 7492
      4121 7487 4123 7487 4127 7486 4129 7483
      4135 7475 4136 7469

$$

KRUZDLO
1 follow-up statement
545 
WGUS71 KPHI 040100
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
900 PM EDT THU JUL 3 2014

NJC037-040109-
/O.CAN.KPHI.FF.W.0023.000000T0000Z-140704T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-
900 PM EDT THU JUL 3 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHERN SUSSEX
COUNTY...

THE SHOWERS AND THUNDERSTORMS THAT PRODUCED THE HEAVY RAIN EARLIER 
THIS EVENING HAVE MOVED OUT OF THE AREA. JUST SOME LIGHTER RAIN 
REMAINS OVER PORTIONS OF THE COUNTY. THE FLASH FLOOD WARNING HAS 
BEEN CANCELLED. MORE SHOWERS AND THUNDERSTORMS ARE POSSIBLE DURING 
THE OVERNIGHT HOURS.

LAT...LON 4124 7444 4123 7444 4114 7492 4115 7492
      4121 7487 4123 7487 4127 7486 4129 7483
      4135 7475 4136 7469

$$

KRUZDLO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 8:07 PM EDTAreal Flood AdvisoryPHIBurlington, Mercer, Middlesex, Monmouth, Ocean4 hr
Jul 2, 8:08 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Cumberland, Gloucester, Salem52 min
Jul 2, 8:19 PM EDTSpecial Weather StatementPHIMercer, Middlesex, Monmouth56 min
Jul 2, 8:25 PM EDTFlash Flood WarningPHIBurlington, Mercer, Middlesex, Monmouth, Somerset4 hr
Jul 2, 8:33 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean57 min
Jul 2, 8:53 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Ocean, Salem67 min
Jul 2, 8:59 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Monmouth, Ocean4 hr
Jul 2, 9:54 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean44 min
Jul 2, 10:20 PM EDTSpecial Marine WarningPHI55 min
Jul 2, 10:30 PM EDTSpecial Weather StatementPHIAtlantic60 min
Jul 2, 10:38 PM EDTAreal Flood AdvisoryPHIBurlington, Camden112 min
Jul 2, 10:58 PM EDTSpecial Weather StatementPHIBurlington62 min
Jul 2, 11:17 PM EDTFlash Flood WarningPHIBurlington3 hr
Jul 3, 12:19 AM EDTSpecial Marine WarningPHI116 min
Jul 3, 12:23 AM EDTSpecial Marine WarningPHI67 min
Jul 3, 12:26 AM EDTSpecial Marine WarningPHI64 min
Jul 3, 12:41 AM EDTSevere Thunderstorm WarningPHICumberland50 min
Jul 3, 1:00 AM EDTSevere Thunderstorm WarningPHICumberland, Gloucester, Salem45 min
Jul 3, 1:14 AM EDTSpecial Marine WarningPHI61 min
Jul 3, 1:19 AM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more56 min
Jul 3, 1:52 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Ocean4 hr
Jul 3, 1:56 AM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Ocean53 min
Jul 3, 2:08 AM EDTSpecial Marine WarningPHI67 min
Jul 3, 2:34 AM EDTSpecial Weather StatementPHIMonmouth56 min
Jul 3, 5:46 AM EDTSmall Craft AdvisoryPHI54 hr
Jul 3, 1:22 PM EDTSpecial Weather StatementPHIWarren38 min
Jul 3, 1:57 PM EDTTornado WarningPHIWarren24 min
Jul 3, 2:23 PM EDTSpecial Weather StatementPHISussex52 min
Jul 3, 3:27 PM EDTHigh Surf AdvisoryPHIAtlantic, Cape May, Monmouth, Ocean41 hr
Jul 3, 4:26 PM EDTSpecial Weather StatementPHIWarren49 min
Jul 3, 5:00 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex60 min
Jul 3, 5:21 PM EDTSpecial Weather StatementPHISussex54 min
Jul 3, 5:50 PM EDTSevere Thunderstorm WarningPHISussex55 min
Jul 3, 6:17 PM EDTAreal Flood AdvisoryPHISussex4 hr
Jul 3, 6:38 PM EDTSpecial Weather StatementPHIWarren67 min
Jul 3, 6:46 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester44 min
Jul 3, 6:47 PM EDTSevere Thunderstorm WarningPHIHunterdon, Sussex, Warren58 min
Jul 3, 7:02 PM EDTAreal Flood AdvisoryPHISussex, Warren4 hr
Jul 3, 7:05 PM EDTSpecial Weather StatementPHIHunterdon55 min
Jul 3, 7:14 PM EDTSpecial Weather StatementPHISussex61 min
Jul 3, 7:20 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Morris, Somerset55 min
Jul 3, 7:25 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Morris, Somerset, Warren65 min
Jul 3, 7:29 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean61 min
Jul 3, 7:44 PM EDTFlash Flood WarningPHIMercer, Middlesex, Morris, Somerset4 hr

Nearby

Flash Flood Warnings in New Jersey, 2014Every flash flood warning in 2014

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.