Alert archive / New Jersey / Tornado Warnings in 2008

Tornado Warning 8, NWS Philadelphia/Mount Holly

August 10, 2008Camden County, Gloucester County, Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this tornado warning at Aug 10, 2008, 1:29 PM EDT for Camden County, Gloucester County, Salem County, New Jersey. It was in force for 28 min. 9 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 10, 2008, 1:29 PM EDT (17:29 UTC)
Expired
Aug 10, 2008, 1:57 PM EDT
In force
28 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Camden County, NJ, Gloucester County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 68 km from the middle of the area, began a volume at 17:29 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.

What was reported inside it

TimeReportWhereRemark
Aug 10, 1:30 PM EDTHAIL 1.253 Nne Elmer, NJ
Aug 10, 1:35 PM EDTHAIL 0.5Turnersville, NJ
Aug 10, 1:37 PM EDTHAIL 0.75Turnersville, NJ
Aug 10, 1:40 PM EDTHAIL 0.54 W Turnersville, NJ
Aug 10, 1:40 PM EDTHAIL 0.5Turnersville, NJ
Aug 10, 1:40 PM EDTHAIL 0.75N Mullica Hill, NJ
Aug 10, 1:45 PM EDTHAIL 14 W Turnersville, NJ
Aug 10, 1:56 PM EDTHAIL 0.5Somerdale, NJ
Aug 10, 1:58 PM EDTHAIL 0.88N Turnersville, NJ

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 10, 10:46 AM EDTSevere Thunderstorm WatchSPC10 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 5.5 hours before the alert went out and 200 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 2008-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2296 joules per kilogram.LCLEL10008507005003002001001 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 2008-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 square meters per square second.193958Sfc1 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
2296 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
709 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS51 KPHI 101729
TORPHI
NJC007-015-033-101830-
/O.NEW.KPHI.TO.W.0008.080810T1729Z-080810T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
129 PM EDT SUN AUG 10 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
  CENTRAL GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
  CENTRAL SALEM COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 230 PM EDT

* AT 125 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MULLICA
  HILL...OR 17 MILES NORTHEAST OF SALEM...MOVING NORTHEAST AT 19 MPH.

* THE TORNADO WILL BE NEAR...
  GLASSBORO AND CLAYTON BY 135 PM...
  TURNERSVILLE AND 7 MILES NORTHWEST OF WILLIAMSTOWN BY 150 PM...
  LINDENWOLD...BERLIN...MAGNOLIA AND 8 MILES NORTHWEST OF CHESILHURST
  BY 210 PM...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
HALF DOLLAR SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM SUNDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.

LAT...LON 3988 7500 3972 7486 3950 7537 3961 7551
TIME...MOT...LOC 1729Z 229DEG 17KT 3970 7517

$$

RNS
1 follow-up statement
000 
WWUS51 KPHI 101757
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
157 PM EDT SUN AUG 10 2008

NJC007-015-033-101806-
/O.CAN.KPHI.TO.W.0008.000000T0000Z-080810T1830Z/
SALEM NJ-CAMDEN NJ-GLOUCESTER NJ-
156 PM EDT SUN AUG 10 2008

...THE TORNADO WARNING FOR CENTRAL GLOUCESTER...CENTRAL CAMDEN AND
CENTRAL SALEM COUNTIES IS CANCELLED...

THE THUNDERSTORM THAT PROMPTED THE WARNING TO BE ISSUED NO LONGER 
APPEARS TONADIC, BUT STILL COULD BE SEVERE AND CONTAIN DAMAGING 
WINDS AND LARGE HAIL. A SEVERE THUNDERSTORM WARNING IS STILL IN 
EFFECT FOR THIS STORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT SUNDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.

LAT...LON 3988 7500 3972 7486 3950 7537 3961 7551
TIME...MOT...LOC 1756Z 229DEG 17KT 3978 7504

$$

RNS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 9:48 AM EDTSpecial Marine WarningPHI57 min
Aug 10, 9:55 AM EDTSevere Thunderstorm WarningPHICape May46 min
Aug 10, 10:11 AM EDTSevere Thunderstorm WarningPHISalem64 min
Aug 10, 10:39 AM EDTSevere Thunderstorm WarningPHIGloucester66 min
Aug 10, 11:17 AM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester58 min
Aug 10, 11:32 AM EDTAreal Flood AdvisoryPHICamden, Gloucester3 hr
Aug 10, 11:46 AM EDTSevere Thunderstorm WarningPHIGloucester, Salem59 min
Aug 10, 11:55 AM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester65 min
Aug 10, 11:56 AM EDTFlash Flood WarningPHICamden, Gloucester4 hr
Aug 10, 12:05 PM EDTSpecial Marine WarningPHI55 min
Aug 10, 12:09 PM EDTTornado WarningPHIGloucester, Salem36 min
Aug 10, 12:40 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem95 min
Aug 10, 12:45 PM EDTSevere Thunderstorm WarningPHICape May60 min
Aug 10, 12:51 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Ocean84 min
Aug 10, 12:56 PM EDTTornado WarningPHIGloucester, Salem34 min
Aug 10, 1:05 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren115 min
Aug 10, 1:22 PM EDTFlash Flood WarningPHIGloucester, Salem3 hr
Aug 10, 1:53 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Salem67 min
Aug 10, 2:10 PM EDTSevere Thunderstorm WarningPHIOcean50 min
Aug 10, 2:23 PM EDTSpecial Marine WarningPHI67 min
Aug 10, 2:36 PM EDTSpecial Marine WarningPHI54 min
Aug 10, 2:50 PM EDTSevere Thunderstorm WarningPHIBurlington55 min
Aug 10, 3:33 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem39 min
Aug 10, 3:44 PM EDTSpecial Marine WarningPHI61 min
Aug 10, 3:46 PM EDTSevere Thunderstorm WarningPHIOcean24 min
Aug 10, 4:10 PM EDTAreal Flood WarningPHIAtlantic, Burlington, Camden, Gloucester, Ocean, Salem3 hr
Aug 10, 6:36 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem69 min
Aug 10, 6:45 PM EDTAreal Flood AdvisoryPHICamden, Gloucester, Salem2 hr
Aug 10, 7:04 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cape May56 min
Aug 10, 7:09 PM EDTSevere Thunderstorm WarningPHICumberland, Salem66 min
Aug 10, 7:15 PM EDTSpecial Marine WarningPHI60 min
Aug 10, 7:42 PM EDTSevere Thunderstorm WarningPHICumberland56 min
Aug 10, 7:45 PM EDTSpecial Marine WarningPHI60 min
Aug 10, 7:53 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester67 min

Nearby

Tornado Warnings in New Jersey, 2008Every tornado warning in 2008Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.