Alert archive / New Jersey / Flash Flood Warnings in 2011

Flash Flood Warning 66, NWS Philadelphia/Mount Holly

September 28, 2011Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Sep 28, 2011, 6:29 AM EDT for Sussex County, Warren County, New Jersey. It was in force for 7 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
Sep 28, 2011, 6:29 AM EDT (10:29 UTC)
Expired
Sep 28, 2011, 1:30 PM EDT
In force
7 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Sussex County, NJ, Warren County, NJ

The radar

The Philadelphia radar (KDIX), 130 km from the middle of the area, began a volume at 10:32 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
Sep 28, 8:15 AM EDTFLASH FLOODBranchville, NJQUICK RISES IN CREEKS AND STREAMS NEAR BRANCHVILLE.
Sep 28, 10:45 AM EDTFLOODNewton, NJSOME ROAD CLOSURES IN NEWTON DUE TO FLOODING.

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 00:00Z, 10.5 hours before the alert went out and 164 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 00:00Z on 2011-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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, Brookhaven, NY at 00:00Z on 2011-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
10 J/kg
Mixed-layer CIN
-134 J/kg
Mixed-layer LCL
500 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

532 
WGUS51 KPHI 281029
FFWPHI
NJC037-041-281430-
/O.NEW.KPHI.FF.W.0066.110928T1029Z-110928T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
629 AM EDT WED SEP 28 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SUSSEX COUNTY...
  NORTHERN WARREN COUNTY...

* UNTIL 1030 AM EDT...

* AT 624 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY HEAVY RAIN FROM A SERIES OF THUNDERSTORMS OVER NORTHERN WARREN 
AND SUSSEX COUNTIES.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEWTON.

ADDITIONAL RAINFALL AMOUNTS OF UP TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT FLOODING...HAIL OR WIND DAMAGE TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...1-877-633-6772.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. TURN AROUND...DON'T DROWN! NEVER TRY
TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE
RISING WATER MOVE UP TO HIGHER GROUND.

&&

LAT...LON 4123 7443 4103 7455 4096 7464 4091 7466
      4091 7476 4089 7479 4090 7508 4094 7512
      4099 7513 4107 7497 4111 7498 4115 7491
      4127 7484 4134 7475 4135 7468

$$

HEAVENER
2 follow-up statements
212 
WGUS71 KPHI 281102
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
702 AM EDT WED SEP 28 2011

NJC037-041-281430-
/O.CON.KPHI.FF.W.0066.000000T0000Z-110928T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-WARREN NJ-
702 AM EDT WED SEP 28 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 AM EDT FOR
NORTHERN WARREN AND SUSSEX COUNTIES...

AT 654 AM EDT...DOPPLER RADAR ESTIMATES CONTINUE TO INDICATE VERY 
HEAVY SHOWERS WITH ISOLATED EMBEDDED THUNDERSTORMS PRODUCING FLASH 
FLOODING OVER NORTHERN WARREN AND SUSSEX COUNTIES.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEWTON.

THE AREA FROM ALLAMUCHY TO HACKETTSTOWN TO CRANDON LAKES AND NEAR 
FLATBROOKVILLE...BRANCHVILLE...HAINESVILLE AND MONTAGUE ARE ALL 
THREATENED WITH PARTICULARLY DANGEROUS SHORT TERM FLOODING.     

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE BETWEEN 7 
AM AND 830 AM IN THE WARNED AREA WITH STORM TOTALS OF 3 TO 4 INCHES 
POSSIBLE. 

EXTENSIVE FLOODING WAS OCCURRING FURTHER SOUTH IN PARTS OF HUNTERDON 
COUNTY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS...INCLUDING COUNTRY ROADS...AND  
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

PLEASE REPORT FLOODING...HAIL OR WIND DAMAGE BY CALLING YOUR LOCAL
LAW ENFORCEMENT OFFICIALS OR BY CALLING THE NATIONAL WEATHER SERVICE
TOLL FREE AT...1-877-633-6772.

&&

LAT...LON 4123 7443 4103 7455 4096 7464 4091 7466
      4091 7476 4089 7479 4090 7508 4094 7512
      4099 7513 4107 7497 4111 7498 4115 7491
      4127 7484 4134 7475 4135 7468

$$

FORECASTER: DRAG
686 
WGUS51 KPHI 281423
FFWPHI
NJC037-041-281730-
/O.EXT.KPHI.FF.W.0066.000000T0000Z-110928T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1023 AM EDT WED SEP 28 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  SUSSEX COUNTY...
  NORTHERN WARREN COUNTY...

* UNTIL 130 PM EDT...

* AT 1012 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT TWO TO FOUR INCHES OF RAIN HAD FALLEN ACROSS PORTIONS OF THE 
WARNED AREA. ALTHOUGH THE RAIN HAS LIGHTENED UP, RUNOFF WILL 
CONTINUE. THE WARNING HAS BEEN EXTENDED UNTIL 130 PM. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEWTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT FLOODING...HAIL OR WIND DAMAGE TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...1-877-633-6772.

&&

LAT...LON 4123 7443 4103 7455 4096 7464 4091 7466
      4091 7476 4089 7479 4090 7508 4094 7512
      4099 7513 4107 7497 4111 7498 4115 7491
      4127 7484 4134 7475 4135 7468

$$

KRUZDLO

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 27, 11:53 PM EDTCoastal Flood StatementPHIBurlington, Camden, Gloucester, Salem4 hr
Sep 28, 1:54 AM EDTSpecial Weather StatementPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Morris and 4 more51 min
Sep 28, 3:56 AM EDTFlash Flood WatchPHIHunterdon, Morris, Somerset, Sussex, Warren39 hr
Sep 28, 4:09 AM EDTSpecial Weather StatementPHIHunterdon, Morris, Somerset, Warren51 min
Sep 28, 4:10 AM EDTCoastal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more7 hr
Sep 28, 4:49 AM EDTAreal Flood WarningPHIHunterdon, Morris, Warren7 hr
Sep 28, 5:45 AM EDTRiver Flood WarningPHIHunterdon, Somerset22 hr
Sep 28, 9:17 AM EDTSpecial Weather StatementPHISussex58 min
Sep 28, 10:02 AM EDTCoastal Flood StatementPHIBurlington, Camden, Gloucester, Salem8 hr
Sep 28, 12:00 PM EDTAreal Flood WarningPHIHunterdon, Morris, Somerset, Warren6 hr
Sep 28, 3:29 PM EDTCoastal Flood StatementPHIAtlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean9 hr
Sep 28, 5:58 PM EDTAreal Flood WarningPHIHunterdon, Morris, Somerset, Sussex, Warren26 hr

Nearby

Flash Flood Warnings in New Jersey, 2011Every flash flood warning in 2011

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.