Alert archive / New Jersey / Flood Watches in 2013

Flood Watch 3, NWS Philadelphia/Mount Holly

November 26, 20134 states

NWS Philadelphia/Mount Holly issued this flood watch at Nov 26, 2013, 3:43 PM EST for 4 states. It took effect at Nov 26, 2013, 7:00 PM EST. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Nov 26, 2013, 3:43 PM EST (20:43 UTC)
In effect from
Nov 26, 2013, 7:00 PM EST
Expired
Nov 27, 2013, 10:50 AM EST
In force
16 hr
Issued by
NWS Philadelphia/Mount Holly
Flood severity
None

Counties New Castle County, DE, Cecil County, MD, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Salem County, NJ, Somerset County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 61 km from the middle of the area, began a volume at 20:45 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, 8.7 hours before the alert went out and 109 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 2013-11-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2013-11-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1325 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
247 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.

255 
WGUS61 KPHI 262043
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
343 PM EST TUE NOV 26 2013

...A STRONG NOR'EASTER WILL IMPACT THE REGION LATE TONIGHT THROUGH WEDNESDAY...


DEZ001-NJZ008>010-012-015>019-PAZ070-071-101>106-270930-
/O.NEW.KPHI.FA.A.0003.131127T0000Z-131127T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-
EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...MORRISTOWN...FLEMINGTON...
SOMERVILLE...NEW BRUNSWICK...TRENTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...MEDIA...
PHILADELPHIA...HONEY BROOK...OXFORD...WEST CHESTER...
KENNET SQUARE...COLLEGEVILLE...POTTSTOWN...NORRISTOWN...
LANSDALE...CHALFONT...PERKASIE...MORRISVILLE...DOYLESTOWN
343 PM EST TUE NOV 26 2013

...FLOOD WATCH IN EFFECT FROM 7 PM EST THIS EVENING THROUGH
WEDNESDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A

* FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...NEW JERSEY AND 
  SOUTHEAST PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN 
  NORTHERN DELAWARE...NEW CASTLE. IN NEW JERSEY...CAMDEN... 
  GLOUCESTER...HUNTERDON...MERCER...MIDDLESEX...MORRIS... 
  NORTHWESTERN BURLINGTON...SALEM AND SOMERSET. IN SOUTHEAST 
  PENNSYLVANIA...DELAWARE...EASTERN CHESTER...EASTERN 
  MONTGOMERY...LOWER BUCKS...PHILADELPHIA...UPPER BUCKS... 
  WESTERN CHESTER AND WESTERN MONTGOMERY. 

* FROM 7 PM EST THIS EVENING THROUGH WEDNESDAY AFTERNOON

* HEAVY RAIN WILL OVERSPREAD THE REGION LATE TONIGHT INTO
  WEDNESDAY MORNING WITH THE HIGHEST RAIN AXIS POSITIONING ITSELF
  ACROSS THE PHILADELPHIA METRO AREA NORTHEASTWARD INTO PORTIONS
  OF NORTHERN NEW JERSEY. WIDESPREAD RAINFALL AMOUNTS OF 2 TO 3 INCHES,
  WITH HIGHER ISOLATED AMOUNTS, ARE POSSIBLE THROUGH WEDNESDAY
  MORNING. THIS RAINFALL MAY FALL WITHIN A 12 HOUR TIME PERIOD
  CAUSING POOR DRAINAGE AND NUMEROUS SMALL STREAMS TO FLOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

&&

$$

HEAVENER
2 follow-up statements
287 
WGUS61 KPHI 270739
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
239 AM EST WED NOV 27 2013

MDZ008-271800-
/O.EXA.KPHI.FA.A.0003.000000T0000Z-131127T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CECIL-
INCLUDING THE CITY OF...ELKTON
239 AM EST WED NOV 27 2013

...FLOOD WATCH IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS EXPANDED THE

* FLOOD WATCH TO INCLUDE A PORTION OF NORTHEAST MARYLAND... 
  INCLUDING THE FOLLOWING AREA...CECIL. 

* UNTIL 1 PM EST THIS AFTERNOON

* WIDESPREAD RAINFALL OF 2 TO 3 INCHES...WITH ISOLATED HIGHER
  AMOUNTS...ARE POSSIBLE THROUGH MIDDAY. AS A RESULT...POOR
  DRAINAGE FLOODING IS POSSIBLE ALONG WITH SMALL CREEK AND STREAM
  FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

MONITOR THE LATEST FORECASTS AND BE ALERT FOR POSSIBLE FLOOD
WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

&&

$$

DEZ001-NJZ008>010-012-015>019-PAZ070-071-101>106-271800-
/O.CON.KPHI.FA.A.0003.000000T0000Z-131127T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-
EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...MORRISTOWN...FLEMINGTON...
SOMERVILLE...NEW BRUNSWICK...TRENTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...MEDIA...
PHILADELPHIA...HONEY BROOK...OXFORD...WEST CHESTER...
KENNET SQUARE...COLLEGEVILLE...POTTSTOWN...NORRISTOWN...
LANSDALE...CHALFONT...PERKASIE...MORRISVILLE...DOYLESTOWN
239 AM EST WED NOV 27 2013

...FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

THE FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHERN DELAWARE...NEW JERSEY AND SOUTHEAST 
  PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN NORTHERN 
  DELAWARE...NEW CASTLE. IN NEW JERSEY...CAMDEN...GLOUCESTER... 
  HUNTERDON...MERCER...MIDDLESEX...MORRIS...NORTHWESTERN 
  BURLINGTON...SALEM AND SOMERSET. IN SOUTHEAST PENNSYLVANIA... 
  DELAWARE...EASTERN CHESTER...EASTERN MONTGOMERY...LOWER 
  BUCKS...PHILADELPHIA...UPPER BUCKS...WESTERN CHESTER AND 
  WESTERN MONTGOMERY. 

* UNTIL 1 PM EST THIS AFTERNOON

* WIDESPREAD RAINFALL OF 2 TO 3 INCHES...WITH ISOLATED HIGHER
  AMOUNTS...ARE POSSIBLE THROUGH MIDDAY. AS A RESULT...POOR
  DRAINAGE FLOODING IS POSSIBLE ALONG WITH SMALL CREEK AND STREAM
  FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

MONITOR THE LATEST FORECASTS AND BE ALERT FOR POSSIBLE FLOOD
WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

&&

$$

KRUZDLO
465 
WGUS61 KPHI 271550
FFAPHI

FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1050 AM EST WED NOV 27 2013

DEZ001-MDZ008-NJZ008>010-012-015>019-PAZ070-071-101>106-271700-
/O.CAN.KPHI.FA.A.0003.000000T0000Z-131127T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-CECIL-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-
EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...TRENTON...PENNSVILLE...
GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...
MEDIA...PHILADELPHIA...HONEY BROOK...OXFORD...WEST CHESTER...
KENNET SQUARE...COLLEGEVILLE...POTTSTOWN...NORRISTOWN...
LANSDALE...CHALFONT...PERKASIE...MORRISVILLE...DOYLESTOWN
1050 AM EST WED NOV 27 2013

...FLOOD WATCH IS CANCELLED...

THE POTENTIAL FOR ANY ADDITIONAL FLOODING DUE TO LAST NIGHT'S
HEAVY RAINFALL IS DIMINISHING. AS A RESULT, THE FLOOD WATCH HAS
BEEN CANCELLED.

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 26, 3:55 AM ESTWind AdvisoryPHIAtlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean30 hr
Nov 26, 4:09 AM ESTGale WarningPHI54 hr

Nearby

Flood Watches in New Jersey, 2013Flood Watches in Pennsylvania, 2013Flood Watches in Delaware, 2013Every flood watch 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.