Alert archive / New Jersey / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 138, NWS Philadelphia/Mount Holly

July 4, 2006Cape May County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 4, 2006, 7:33 PM EDT for Cape May County, New Jersey. It was in force for 52 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 4, 2006, 7:33 PM EDT (23:33 UTC)
Expired
Jul 4, 2006, 8:25 PM EDT
In force
52 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

County Cape May County, NJ

The radar

The Dover AFB radar (KDOX), 64 km from the middle of the area, began a volume at 23:23 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 4, 12:40 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 11.6 hours before the alert went out and 144 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 2006-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1321 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2006-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 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
1321 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1068 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
66 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 042336
SVRPHI
NJC009-050045-
/O.NEW.KPHI.SV.W.0138.060704T2333Z-060705T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
733 PM EDT TUE JUL 4 2006

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CAPE MAY COUNTY IN SOUTHERN NEW JERSEY

* UNTIL 845 PM EDT

* AT 723 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  STRONG THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN        
  EXCESS OF 60 MPH OVER THE DELAWARE BAY. THESE THUNDERSTORMS WERE   
  MOVING EAST AT ABOUT 35 MPH...AND WILL AFFECT CAPE MAY COUNTY      
  DURING THE EVENING HOURS.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WOODBINE...WILDWOOD CREST...WILDWOOD...STONE HARBOR...RIO GRANDE   
  AND CAPE MAY COURT HOUSE.

FREQUENT CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THESE 
THUNDERSTORMS...ALONG WITH STRONG GUSTY WINDS IN EXCESS OF 60 
MPH...AND HEAVY DOWNPOURS RESULTING IN PONDING OF WATER IN AREAS OF 
POOR DRAINAGE.

LAT...LON 3927 7484 3896 7498 3896 7483 3926 7463

$$

JJM
1 follow-up statement
000 
WWUS51 KPHI 050025
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
824 PM EDT TUE JUL 4 2006

NJC009-050034-
/O.CAN.KPHI.SV.W.0138.000000T0000Z-060705T0045Z/
CAPE MAY NJ-
824 PM EDT TUE JUL 4 2006

...THE SEVERE THUNDERSTORM WARNING FOR CAPE MAY COUNTY IS
CANCELLED...

AT 825 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE 
SEVERE THUNDERSTORMS WHICH WERE THREATENING CAPE MAY COUNTY EARLIER 
THIS EVENING HAVE MOVED WELL SOUTH OF THE AREA. SHOWERS MOVING IN 
FROM CUMBERLAND COUNTY ARE NOT EXPECTED TO PRODUCE SEVERE WEATHER. 
THE SEVERE THUNDERSTORM WARNING HAS THEREFORE BEEN CANCELLED.


LAT...LON 3927 7484 3896 7498 3896 7483 3926 7463

$$

JJM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 2:42 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren33 min
Jul 4, 3:27 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem33 min
Jul 4, 3:57 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden48 min
Jul 4, 4:02 PM EDTSpecial Marine WarningPHI28 min
Jul 4, 4:16 PM EDTSevere Thunderstorm WarningPHIMonmouth44 min
Jul 4, 4:22 PM EDTSevere Thunderstorm WarningPHICumberland, Salem53 min
Jul 4, 4:47 PM EDTSpecial Marine WarningPHI118 min
Jul 4, 5:13 PM EDTSpecial Marine WarningPHI62 min
Jul 4, 5:35 PM EDTSpecial Marine WarningPHI115 min
Jul 4, 6:10 PM EDTSpecial Marine WarningPHI2 hr
Jul 4, 6:40 PM EDTSpecial Marine WarningPHI2 hr
Jul 4, 7:08 PM EDTSpecial Marine WarningPHI97 min
Jul 4, 7:41 PM EDTSpecial Marine WarningPHI67 min

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.