Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 66, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 30, 2012, 12:34 AM EDT for Burlington County, Camden County, Gloucester County, New Jersey. It was in force for 56 min. 1 report 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
- Jun 30, 2012, 12:34 AM EDT (04:34 UTC)
- Expired
- Jun 30, 2012, 1:30 AM EDT
- In force
- 56 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ
The radar
The Philadelphia radar (KDIX), 54 km from the middle of the area, began a volume at 04:37 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 30, 1:00 AM EDT | TSTM WND DMG | Atco, NJ | LARGE LIMBS DOWN |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 29, 10:09 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 4.6 hours before the alert went out and 209 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.
- Mixed-layer CAPE
- 2642 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 1881 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
064
WUUS51 KPHI 300434
SVRPHI
NJC005-007-015-300530-
/O.NEW.KPHI.SV.W.0066.120630T0434Z-120630T0530Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1234 AM EDT SAT JUN 30 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
SOUTHERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 130 AM EDT
* AT 1232 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
TURNERSVILLE...OR 10 MILES SOUTH OF CAMDEN...AND MOVING EAST AT 30
MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
LINDENWOLD...VOORHEES...SICKLERVILLE AND 7 MILES NORTH OF
WILLIAMSTOWN AROUND 1240 AM EDT...
BERLIN AROUND 1245 AM EDT...
MARLTON LAKES...ATCO AND CHESILHURST AROUND 1250 AM EDT...
SHAMONG AND ATSION AROUND 105 AM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...LARGE HAIL...AND DEADLY CLOUD TO
GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM EDT
SATURDAY MORNING FOR NORTHERN DELAWARE AND NORTHEASTERN MARYLAND AND
SOUTHERN NEW JERSEY.
&&
LAT...LON 3981 7446 3962 7510 3977 7540 3979 7541
3988 7518
TIME...MOT...LOC 0434Z 270DEG 28KT 3979 7504
$$
AMC1 follow-up statement
055
WWUS51 KPHI 300505
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
105 AM EDT SAT JUN 30 2012
NJC005-007-015-300530-
/O.CON.KPHI.SV.W.0066.000000T0000Z-120630T0530Z/
CAMDEN NJ-GLOUCESTER NJ-BURLINGTON NJ-
105 AM EDT SAT JUN 30 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM EDT
FOR SOUTHERN BURLINGTON...GLOUCESTER AND SOUTHERN CAMDEN COUNTIES...
AT 102 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS
LOCATED NEAR TURNERSVILLE...OR 15 MILES SOUTH OF CAMDEN...MOVING EAST
AT 40 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
SICKLERVILLE...PINE VALLEY...PINE HILL AND BERLIN BY 110 AM EDT...
CHESILHURST...ATCO AND MARLTON LAKES BY 115 AM EDT...
ATSION AND SHAMONG BY 130 AM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM EDT
SATURDAY MORNING FOR NORTHERN DELAWARE AND NORTHEASTERN MARYLAND AND
SOUTHERN NEW JERSEY.
&&
LAT...LON 3981 7446 3962 7510 3977 7540 3979 7541
3988 7518
TIME...MOT...LOC 0505Z 264DEG 34KT 3972 7501
$$
AMCThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 11:53 PM EDT | Special Marine Warning | PHI | 97 min | |
| Jun 30, 12:04 AM EDT | Special Marine Warning | PHI | 116 min | |
| Jun 30, 12:18 AM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 72 min |
| Jun 30, 12:25 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 65 min |
| Jun 30, 12:27 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May | 63 min |
| Jun 30, 1:11 AM EDT | Special Marine Warning | PHI | 64 min | |
| Jun 30, 1:31 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Ocean | 59 min |
| Jun 30, 2:18 AM EDT | Special Marine Warning | PHI | 117 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2012Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.