Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 155, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 3, 2012, 5:12 PM EDT for Camden County, Gloucester County, New Jersey; Delaware County, Philadelphia County, Pennsylvania. It was in force for 63 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
- Aug 3, 2012, 5:12 PM EDT (21:12 UTC)
- Expired
- Aug 3, 2012, 6:15 PM EDT
- In force
- 63 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Camden County, NJ, Gloucester County, NJ, Delaware County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 80 km from the middle of the area, began a volume at 21:14 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 |
|---|---|---|---|
| Aug 3, 5:15 PM EDT | TSTM WND DMG | Linwood, PA | NUMEROUS TREES AND WIRES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.2 hours before the alert went out and 75 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
- 1112 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 961 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
614
WUUS51 KPHI 032112
SVRPHI
NJC007-015-PAC045-101-032215-
/O.NEW.KPHI.SV.W.0155.120803T2112Z-120803T2215Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
512 PM EDT FRI AUG 3 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA...
SOUTHWESTERN PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA...
WEST CENTRAL CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
NORTHWESTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 615 PM EDT
* AT 509 PM 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
CHELSEA...OR 9 MILES NORTHEAST OF WILMINGTON...AND MOVING EAST AT
20 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CHESTER AND NETHER PROVIDENCE TOWNSHIP AROUND 520 PM EDT...
SWARTHMORE AROUND 525 PM EDT...
FOLCROFT AND SWEDESBORO AROUND 535 PM EDT...
GIBBSTOWN AND PHILADELPHIA INTERNATIONAL AIRPORT AROUND 540 PM
EDT...
PAULSBORO AROUND 545 PM EDT...
MULLICA HILL AROUND 550 PM 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.
&&
LAT...LON 3967 7516 3976 7541 3978 7540 3978 7543
3979 7541 3984 7551 3992 7544 3990 7503
TIME...MOT...LOC 2112Z 280DEG 15KT 3984 7542
$$
HEAVENER2 follow-up statements
169
WWUS51 KPHI 032159
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
559 PM EDT FRI AUG 3 2012
NJC007-PAC101-032209-
/O.CAN.KPHI.SV.W.0155.000000T0000Z-120803T2215Z/
CAMDEN NJ-PHILADELPHIA PA-
559 PM EDT FRI AUG 3 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN PHILADELPHIA AND
WEST CENTRAL CAMDEN COUNTIES IS CANCELLED...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3967 7516 3976 7540 3978 7540 3979 7541
3981 7543 3982 7544 3989 7537 3985 7509
3984 7508 3981 7508
TIME...MOT...LOC 2159Z 280DEG 15KT 3981 7517
$$
NJC015-PAC045-032215-
/O.CON.KPHI.SV.W.0155.000000T0000Z-120803T2215Z/
DELAWARE PA-GLOUCESTER NJ-
559 PM EDT FRI AUG 3 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR NORTHWESTERN GLOUCESTER AND SOUTHEASTERN DELAWARE COUNTIES...
AT 556 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR OAK VALLEY...OR 10 MILES SOUTHWEST OF CAMDEN...MOVING
EAST AT 15 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
WENONAH BY 605 PM EDT...
PITMAN BY 610 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
LAT...LON 3967 7516 3976 7540 3978 7540 3979 7541
3981 7543 3982 7544 3989 7537 3985 7509
3984 7508 3981 7508
TIME...MOT...LOC 2159Z 280DEG 15KT 3981 7517
$$
HEAVENER409
WWUS51 KPHI 032206
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
606 PM EDT FRI AUG 3 2012
NJC015-PAC045-032217-
/O.EXP.KPHI.SV.W.0155.000000T0000Z-120803T2215Z/
DELAWARE PA-GLOUCESTER NJ-
606 PM EDT FRI AUG 3 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GLOUCESTER AND
SOUTHEASTERN DELAWARE COUNTIES WILL EXPIRE AT 615 PM EDT...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3967 7516 3976 7540 3978 7540 3979 7541
3981 7543 3982 7544 3989 7537 3985 7509
3984 7508 3981 7508
TIME...MOT...LOC 2207Z 280DEG 15KT 3980 7513
$$
HEAVENERThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 3:38 PM EDT | Special Weather Statement | PHI | Burlington | 67 min |
| Aug 3, 4:17 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 58 min |
| Aug 3, 4:21 PM EDT | Special Marine Warning | PHI | 84 min | |
| Aug 3, 4:35 PM EDT | Special Weather Statement | PHI | Monmouth | 55 min |
| Aug 3, 4:45 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 60 min |
| Aug 3, 5:35 PM EDT | Special Weather Statement | PHI | Mercer | 55 min |
| Aug 3, 5:42 PM EDT | Special Weather Statement | PHI | Mercer | 63 min |
| Aug 3, 5:46 PM EDT | Areal Flood Advisory | PHI | Gloucester | 101 min |
| Aug 3, 5:55 PM EDT | Special Weather Statement | PHI | Burlington | 65 min |
| Aug 3, 6:20 PM EDT | Areal Flood Advisory | PHI | Burlington, Mercer | 2 hr |
| Aug 3, 6:23 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 43 min |
| Aug 3, 2:39 PM EDT | Special Weather Statement | PHI | Chester | 66 min |
| Aug 3, 4:15 PM EDT | Special Weather Statement | PHI | Delaware | 60 min |
| Aug 3, 7:33 PM EDT | Special Weather Statement | PHI | Bucks | 57 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2012Severe Thunderstorm Warnings in Pennsylvania, 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.