Alert archive / New Jersey / Areal Flood Warnings in 2012

Areal Flood Warning 6, NWS Philadelphia/Mount Holly

May 25, 2012Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood warning at May 25, 2012, 3:55 PM EDT for Burlington County, New Jersey. It was in force for 3 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
May 25, 2012, 3:55 PM EDT (19:55 UTC)
Expired
May 25, 2012, 7:05 PM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

County Burlington County, NJ

The radar

The Philadelphia radar (KDIX), 19 km from the middle of the area, began a volume at 19:58 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, 7.9 hours before the alert went out and 135 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 2012-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 504 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, Phillips Aaf/Abe, MD at 12:00Z on 2012-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
504 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
528 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
45 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.

626 
WGUS41 KPHI 251955
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
355 PM EDT FRI MAY 25 2012

NJC005-252245-
/O.NEW.KPHI.FA.W.0006.120525T1955Z-120525T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BURLINGTON NJ-
355 PM EDT FRI MAY 25 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLOOD WARNING FOR SMALL STREAMS IN...
  CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 645 PM EDT

* AT 352 PM EDT DOPPLER RADAR CONTINUED TO SHOW SLOW MOVING 
  THUNDERSTORMS IN THE WOODLAND TOWNSHIP AREA NEAR NEW JERSEY
  STATE ROUTE 72. DOPPLER RADAR STORM TOTAL ESTIMATES HAVE REACHED
  BETWEEN TWO AND THREE INCHES IN THE TOWNSHIP WITH AN ADDITIONAL
  INCH OF RAIN POSSIBLE.

* SMALLER STREAMS MIGHT FLOOD, BUT THE GREATEST IMPACT MIGHT BE ON
  STATE ROUTE 72 TOWARD THE SHORE IF STORMS BACK BUILD OVER THE 
  ROADWAY.     
 
A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON 
SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON ROADS AND 
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

DRIVING INTO FLOOD WATERS COULD PUT YOUR LIFE AT RISK AND COST YOU
THOUSANDS OF DOLLARS IN VEHICLE REPAIRS. FLOOD WATERS MAY BE DEEPER
THAN YOU THINK. TURN AROUND AND FIND AN ALTERNATE ROUTE.

&&

LAT...LON 3979 7469 3992 7474 3996 7449 3984 7443

$$
 
TFG
2 follow-up statements
785 
WGUS41 KPHI 252218
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
618 PM EDT FRI MAY 25 2012

NJC005-260145-
/O.EXT.KPHI.FA.W.0006.000000T0000Z-120526T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BURLINGTON NJ-
618 PM EDT FRI MAY 25 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLOOD WARNING FOR SMALL STREAMS IN...
  CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 945 PM EDT

* AT 616 PM EDT ANOTHER AREA OF SHOWERS AND ISOLATED THUNDERSTORMS
  WITH HEAVY RAIN IS MOVING INTO THE WOODLAND TOWNSHIP AREA. UP TO   
  AN ADDITIONAL INCH OF RAIN MAY FALL AND RENEW FLOODING OF 
  SMALLER STREAMS IN THE AREA. IN ADDITION, POOR DRAINAGE FLOODING 
MIGHT
  OCCUR ON NEW JERSEY STATE ROUTE 72.  

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON COUNTRY ROADS AND
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

DRIVING INTO FLOOD WATERS COULD PUT YOUR LIFE AT RISK AND COST YOU
THOUSANDS OF DOLLARS IN VEHICLE REPAIRS. FLOOD WATERS MAY BE DEEPER
THAN YOU THINK. TURN AROUND AND FIND AN ALTERNATE ROUTE.

&&

LAT...LON 3979 7469 3992 7474 3996 7449 3984 7443

$$

TFG
417 
WGUS81 KPHI 252305
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
705 PM EDT FRI MAY 25 2012

NJC005-252314-
/O.CAN.KPHI.FA.W.0006.000000T0000Z-120526T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BURLINGTON NJ-
705 PM EDT FRI MAY 25 2012

...THE FLOOD WARNING HAS BEEN CANCELLED FOR SMALL STREAMS IN CENTRAL
BURLINGTON COUNTY...

THE SECOND AREA OF SHOWERS AND THUNDERSTORMS COLLAPSED AS IT WAS 
ENTERING THE WARNING AREA. THERE ARE CURRENTLY NO REPORTS OF ONGOING
FLOODING IN THE WARNED AREA AND NO ADDITIONAL TORRENTIAL RAIN IS 
EXPECTED. THUS THE FLOOD WARNING HAS BEEN CANCELLED.
 
LAT...LON 3979 7469 3992 7474 3996 7449 3984 7443

$$
 
TFG

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 1:45 PM EDTSpecial Weather StatementPHIBurlington, Ocean90 min
May 25, 2:14 PM EDTAreal Flood AdvisoryPHIBurlington2 hr
May 25, 3:07 PM EDTSpecial Weather StatementPHIBurlington, Middlesex, Monmouth53 min
May 25, 5:15 PM EDTSpecial Weather StatementPHIBurlington90 min

Nearby

Areal Flood Warnings in New Jersey, 2012Every areal flood warning in 2012

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.