Alert archive / New Jersey / Areal Flood Warnings in 2008

Areal Flood Warning 21, NWS Philadelphia/Mount Holly

December 13, 2008Burlington County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood warning at Dec 13, 2008, 3:42 AM EST for Burlington County, Ocean County, New Jersey. It was in force for 6 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
Dec 13, 2008, 3:42 AM EST (08:42 UTC)
Expired
Dec 13, 2008, 9:45 AM EST
In force
6 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Burlington County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 22 km from the middle of the area, began a volume at 08:41 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

Brookhaven, NY (KOKX), launched 00:00Z, 8.7 hours before the alert went out and 165 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 2008-12-13Temperature 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, Brookhaven, NY at 00:00Z on 2008-12-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -72 square meters per square second.1939587897117136156Sfc1 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
928 m above ground
0-6 km bulk shear
101 kt
0-1 km storm-relative helicity
-72 m²/s²
0-3 km storm-relative helicity
-31 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.

000 
WGUS41 KPHI 130842
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
342 AM EST SAT DEC 13 2008

NJC005-029-131445-
/O.NEW.KPHI.FA.W.0021.081213T0842Z-081213T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
342 AM EST SAT DEC 13 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLOOD WARNING FOR...
  EXTREME EAST CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  OCEAN COUNTY IN SOUTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF TOMS RIVER...

* UNTIL 945 AM EST

* AT 339 AM EST MINOR FLOODING WAS STILL BEING REPORTED ALONG THE 
NORTH BRANCH OF THE METEDECONK RIVER IN OCEAN COUNTY.  THEREFORE THE 
AREAL FLOOD WARNING HAS BEEN EXTENDED.  

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.

THE SQUANKUM RIVER IN MONMOUTH COUNTY HAS FALLEN BELOW FLOOD STAGE 
AND THE FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 3988 7409 3992 7409 3976 7418 3973 7412
      3968 7412 3960 7422 3964 7424 3963 7424
      3957 7424 3958 7424 3959 7429 3957 7432
      3954 7429 3953 7436 4004 7445 4016 7438
      4016 7428 4011 7427 4009 7422 4008 7403

$$
1 follow-up statement
000 
WGUS81 KPHI 131440
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
940 AM EST SAT DEC 13 2008

NJC005-029-131445-
/O.EXP.KPHI.FA.W.0021.000000T0000Z-081213T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OCEAN NJ-BURLINGTON NJ-
940 AM EST SAT DEC 13 2008

...THE FLOOD WARNING HAS EXPIRED...

AT 830 AM EST, THE NORTH BRANCH OF THE METEDECONK RIVER IN OCEAN 
COUNTY FELL BELOW FLOOD STAGE. NO FURTHER FLOODING IS EXPECTED. 

LAT...LON 3988 7409 3992 7409 3976 7418 3973 7412
      3968 7412 3960 7422 3964 7424 3963 7424
      3957 7424 3958 7424 3959 7429 3957 7432
      3954 7429 3953 7436 4004 7445 4016 7438
      4016 7428 4011 7427 4009 7422 4008 7403

$$

MPD

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 12, 7:42 PM ESTAreal Flood WarningPHIBurlington, Monmouth, Ocean8 hr

Nearby

Areal Flood Warnings in New Jersey, 2008Every areal flood warning in 2008

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.