Alert archive / New Jersey / Flash Flood Warnings in 2013

Flash Flood Warning 61, NWS Philadelphia/Mount Holly

August 22, 2013Hunterdon County, Morris County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 22, 2013, 10:10 AM EDT for Hunterdon County, Morris County, Somerset County, New Jersey. It was in force for 5 hr. 3 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
Aug 22, 2013, 10:10 AM EDT (14:10 UTC)
Expired
Aug 22, 2013, 3:00 PM EDT
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 93 km from the middle of the area, began a volume at 14:10 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
Aug 22, 11:02 AM EDTFLOODOldwick, NJCAR IN FLOOD WATER ON MCCAN MILL ROAD..PEOPLE TRAPPED IN...RESCUE UNITS ARE RESPONDING.
Aug 22, 11:02 AM EDTFLASH FLOODOldwick, NJCAR IN FLOOD WATER ON MCCAN MILL ROAD..PEOPLE TRAPPED IN...RESCUE UNITS ARE RESPONDING.
Aug 22, 2:00 PM EDTFLASH FLOODSw Bedminster, NJLAMINGTON RIVER FLOODED AT BURNT MILLS ROAD. THE ROAD IS NOW CLOSED.

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, 2.2 hours before the alert went out and 155 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 2013-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1014 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 12:00Z on 2013-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
1014 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
632 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
70 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.

962 
WGUS51 KPHI 221410
FFWPHI
NJC019-027-035-221700-
/O.NEW.KPHI.FF.W.0061.130822T1410Z-130822T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1010 AM EDT THU AUG 22 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN HUNTERDON COUNTY...
  SOUTHWESTERN MORRIS COUNTY...
  NORTH CENTRAL SOMERSET COUNTY...

* UNTIL 100 PM EDT...

* AT 1000 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
  INDICATED VERY HEAVY RAIN FROM THUNDERSTORMS OVER NORTH CENTRAL 
  SOMERSET...NORTHEASTERN HUNTERDON AND SOUTHWESTERN MORRIS 
  COUNTIES. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RURAL AREAS
  OF NORTH CENTRAL SOMERSET...NORTHEASTERN HUNTERDON AND SOUTHWESTERN
  MORRIS COUNTIES.

TWO INCHES OR MORE OR RAIN HAS LIKELY FALLEN OVER THIS AREA DURING 
THE PAST HOUR AND THREE INCHES OR MORE OVER THE PAST TWO HOURS. 
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

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 SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. 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 4080 7487 4084 7447 4068 7445 4066 7487

$$

FORECASTER:
3 follow-up statements
318 
WGUS71 KPHI 221518
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1118 AM EDT THU AUG 22 2013

NJC019-027-035-221700-
/O.CON.KPHI.FF.W.0061.000000T0000Z-130822T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUNTERDON NJ-MORRIS NJ-SOMERSET NJ-
1118 AM EDT THU AUG 22 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 PM EDT FOR
NORTHWESTERN SOMERSET...SOUTHWESTERN MORRIS AND NORTHEASTERN
HUNTERDON COUNTIES...

AT 1109 AM EDT...DOPPLER RADAR ESTIMATES CONTINUE TO INDICATE A
THUNDERSTORM PRODUCING FLASH FLOODING OVER NORTHEASTERN HUNTERDON...
NORTHWESTERN SOMERSET AND SOUTHWESTERN MORRIS COUNTIES.

RADAR INDICES FOUR INCHES OR MORE OF RAIN HAS FALLEN ACROSS FAR 
NORTHERN SOMERSET COUNTY AND EXTREME NORTHEAST HUNTERDON COUNTY... 
WITH TWO INCHES OR MORE IN THE LAST HOUR. THIS AREA INCLUDES THE 
TOWNSHIPS OF TEWKSBURY, NORTHERN BEDMINSTER, PEAPACK-GLADSTONE, 
NORTHERN FAR HILLS AND WESTERN BERNARDSVILLE. A CAR FLOOD/RESCUE 
SITUATION WAS REPORTED IN OLDWICK IN HUNTERDON COUNTY.

LAT...LON 4080 7487 4084 7447 4068 7445 4066 7487

$$

FORECASTER: AMC
391 
WGUS71 KPHI 221647
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1247 PM EDT THU AUG 22 2013

NJC019-027-035-221700-
/O.CON.KPHI.FF.W.0061.000000T0000Z-130822T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUNTERDON NJ-MORRIS NJ-SOMERSET NJ-
1247 PM EDT THU AUG 22 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 PM EDT FOR
NORTHWESTERN SOMERSET...SOUTH CENTRAL MORRIS AND NORTHEASTERN
HUNTERDON COUNTIES...

AT 1241 PM EDT...RADAR INDICATED FOUR OR MORE INCHES OF RAIN HAD 
FALLEN ACROSS FAR NORTHERN SOMERSET COUNTY AND EXTREME NORTHEAST 
HUNTERDON COUNTY. THIS AREA INCLUDED THE TOWNSHIPS OF TEWKSBURY, 
NORTHERN BEDMINSTER, PEAPACK-GLADSTONE, NORTHERN FAR HILLS AND 
WESTERN BERNARDSVILLE. A CAR FLOOD/RESCUE SITUATION WAS REPORTED IN 
OLDWICK IN HUNTERDON COUNTY.

IN ADDITIONA, THE MIDDLE BROOK GAGE AT BURNT MILLS IN SOMERSET 
COUNTY HAD RISEN ABOVE FLOOD STAGE. 

LAT...LON 4076 7474 4079 7456 4068 7449 4066 7487

$$

KRUZDLO
370 
WGUS51 KPHI 221649
FFWPHI
NJC019-027-035-221900-
/O.EXT.KPHI.FF.W.0061.000000T0000Z-130822T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1249 PM EDT THU AUG 22 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN HUNTERDON COUNTY...
  SOUTH CENTRAL MORRIS COUNTY...
  NORTH CENTRAL SOMERSET COUNTY...

* UNTIL 300 PM EDT...

* AT 1241 PM EDT...RADAR INDICATED FOUR OR MORE INCHES OF RAIN HAD   
  FALLEN ACROSS FAR NORTHERN SOMERSET COUNTY AND EXTREME NORTHEAST   
  HUNTERDON COUNTY. THIS AREA INCLUDED THE TOWNSHIPS OF TEWKSBURY,   
  NORTHERN BEDMINSTER, PEAPACK-GLADSTONE, NORTHERN FAR HILLS AND     
  WESTERN BERNARDSVILLE. A CAR FLOOD/RESCUE SITUATION WAS REPORTED   
  IN OLDWICK IN HUNTERDON COUNTY.

  IN ADDITION, THE MIDDLE BROOK GAGE AT BURNT MILLS IN SOMERSET      
  COUNTY HAD RISEN ABOVE FLOOD STAGE. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RURAL AREAS
  OF NORTH CENTRAL SOMERSET...NORTHEASTERN HUNTERDON AND SOUTH
  CENTRAL MORRIS COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DRIVING INTO FLOOD WATERS COULD COST YOU YOUR LIFE...OR AT THE VERY
LEAST...THOUSANDS OF DOLLARS OF VEHICLE DAMAGE. NEARLY HALF OF ALL
FLASH FLOOD FATALITIES ARE AUTO RELATED. TURN AROUND...DON'T DROWN.

&&

LAT...LON 4076 7474 4079 7456 4068 7449 4066 7487

$$

KRUZDLO

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 7:24 AM EDTSpecial Weather StatementPHIMercer, Middlesex, Somerset66 min
Aug 22, 7:48 AM EDTAreal Flood AdvisoryPHIBurlington, Mercer117 min
Aug 22, 8:28 AM EDTSpecial Weather StatementPHIMiddlesex, Somerset62 min
Aug 22, 8:59 AM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset2 hr
Aug 22, 11:27 AM EDTSpecial Weather StatementPHIHunterdon, Somerset2 hr
Aug 22, 12:18 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Somerset4 hr
Aug 22, 12:37 PM EDTAreal Flood AdvisoryPHIMercer, Middlesex, Somerset4 hr
Aug 22, 1:20 PM EDTFlash Flood WarningPHIMercer, Middlesex, Somerset4 hr
Aug 22, 1:28 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Mercer4 hr
Aug 22, 1:39 PM EDTSpecial Weather StatementPHIMonmouth81 min
Aug 22, 1:41 PM EDTAreal Flood AdvisoryPHIMiddlesex, Monmouth4 hr
Aug 22, 2:06 PM EDTAreal Flood AdvisoryPHIBurlington, Mercer, Monmouth, Ocean4 hr
Aug 22, 3:03 PM EDTAreal Flood WarningPHIHunterdon, Somerset8 hr
Aug 22, 3:23 PM EDTSpecial Weather StatementPHICamden, Gloucester97 min
Aug 22, 3:46 PM EDTSpecial Weather StatementPHICamden, Gloucester89 min
Aug 22, 3:47 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Salem4 hr
Aug 22, 4:26 PM EDTSpecial Weather StatementPHIAtlantic94 min
Aug 22, 4:42 PM EDTSpecial Marine WarningPHI93 min
Aug 22, 5:16 PM EDTSpecial Weather StatementPHIWarren89 min
Aug 22, 6:43 PM EDTSpecial Weather StatementPHICape May92 min
Aug 22, 6:53 PM EDTSpecial Marine WarningPHI97 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.