Alert archive / New Jersey / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 191, NWS Philadelphia/Mount Holly

July 21, 2006Cumberland County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 21, 2006, 5:13 PM EDT for Cumberland County, New Jersey. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 21, 2006, 5:13 PM EDT (21:13 UTC)
Expired
Jul 21, 2006, 5:46 PM EDT
In force
33 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

County Cumberland County, NJ

The radar

The Dover AFB radar (KDOX), 72 km from the middle of the area, began a volume at 21:13 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.2 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, Wallops Is Stn, VA at 12:00Z on 2006-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 905 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, Wallops Is Stn, VA at 12:00Z on 2006-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
905 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
1028 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
42 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 
WUUS51 KPHI 212114
SVRPHI
NJC011-212200-
/O.NEW.KPHI.SV.W.0191.060721T2113Z-060721T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
513 PM EDT FRI JUL 21 2006

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY

* UNTIL 600 PM EDT

* AT 510 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  LAUREL LAKE...OR ABOUT 7 MILES SOUTH OF VINELAND...AND MOVING EAST
  AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL EASTERN CUMBERLAND COUNTY AT 530 PM EDT

MILVILLE AIRPORT REPORTED A WIND GUST TO 49 KT...OR 56 MPH WITHIN 
THE PAST FEW MINUTES.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 3942 7508 3932 7510 3927 7489 3944 7487

$$

AMC
1 follow-up statement
000 
WWUS51 KPHI 212146
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
546 PM EDT FRI JUL 21 2006

NJC011-212156-
/O.CAN.KPHI.SV.W.0191.000000T0000Z-060721T2200Z/
CUMBERLAND NJ-
546 PM EDT FRI JUL 21 2006

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CUMBERLAND COUNTY
IS CANCELLED...

THE STORMS THAT PROMTED THE WARNING HAVE WEAKENED AND MOVED EAST OF 
THE AREA.

LAT...LON 3942 7508 3932 7510 3927 7489 3944 7487

$$

AMC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 2:54 PM EDTSevere Thunderstorm WarningPHIBurlington36 min
Jul 21, 2:56 PM EDTFlash Flood WatchPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more37 hr
Jul 21, 3:41 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean26 min
Jul 21, 3:57 PM EDTSevere Thunderstorm WarningPHIMiddlesex33 min
Jul 21, 5:08 PM EDTSpecial Marine WarningPHI52 min
Jul 21, 5:33 PM EDTFlash Flood WarningPHISomerset3 hr
Jul 21, 6:56 PM EDTFlash Flood WarningPHIMiddlesex, Somerset3 hr
Jul 21, 7:07 PM EDTSevere Thunderstorm WarningPHIHunterdon29 min
Jul 21, 7:31 PM EDTFlash Flood WarningPHIHunterdon3 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2006Every severe thunderstorm warning in 2006

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.