Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 153, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 31, 2014, 6:26 PM EDT for Camden County, Gloucester County, New Jersey; Delaware County, Philadelphia County, Pennsylvania. It was in force for 34 min. 2 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 31, 2014, 6:26 PM EDT (22:26 UTC)
- Expired
- Aug 31, 2014, 7:00 PM EDT
- In force
- 34 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), 74 km from the middle of the area, began a volume at 22:29 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 31, 6:35 PM EDT | TSTM WND DMG | Clarksboro, NJ | SOME TREES AND TREE LIMBS DOWN ALONG BARBARA DRIVE. |
| Aug 31, 6:35 PM EDT | TSTM WND DMG | Clarksboro, NJ | 60 FOOT TREE DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.4 hours before the alert went out and 206 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
- 495 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 785 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
591
WUUS51 KPHI 312226
SVRPHI
NJC007-015-PAC045-101-312300-
/O.NEW.KPHI.SV.W.0153.140831T2226Z-140831T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
626 PM EDT SUN AUG 31 2014
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
SOUTHWESTERN PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA...
SOUTHEASTERN DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA...
NORTHERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 700 PM EDT
* AT 624 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS EXTENDED FROM
PHILADELPHIA INTERNATIONAL ARPT TO TRAINER TO BECKETT...MOVING EAST
AT 35 MPH. THESE STORMS ARE CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
MULLICA HILL AND PAULSBORO AROUND 635 PM EDT...
GLOUCESTER CITY AND WEST DEPTFORD AROUND 640 PM EDT...
BELLMAWR AND WOODBURY HEIGHTS AROUND 645 PM EDT...
TURNERSVILLE AND MAGNOLIA AROUND 655 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...MOVE INDOORS TO A
STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS SAFE TO DO
SO...REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO THE
NATIONAL WEATHER SERVICE.
SEVERE THUNDERSTORMS PRODUCE WINDS OF MORE THAN 57 MPH...OR HAIL ONE
INCH OR LARGER.
&&
LAT...LON 3968 7500 3969 7532 3973 7538 3975 7538
3976 7541 3978 7540 3979 7541 3982 7539
3989 7529 3992 7503 3984 7501
TIME...MOT...LOC 2226Z 262DEG 30KT 3987 7528 3981 7536
3970 7534
$$
FORECASTER: DRAG1 follow-up statement
117
WWUS51 KPHI 312238
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
638 PM EDT SUN AUG 31 2014
PAC045-101-312247-
/O.CAN.KPHI.SV.W.0153.000000T0000Z-140831T2300Z/
PHILADELPHIA PA-DELAWARE PA-
638 PM EDT SUN AUG 31 2014
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DELAWARE AND
SOUTHWESTERN PHILADELPHIA COUNTIES IS CANCELLED...
LAT...LON 3968 7500 3970 7529 3975 7532 3978 7532
3985 7526 3986 7521 3988 7519 3988 7515
3990 7513 3992 7503 3984 7501
TIME...MOT...LOC 2237Z 262DEG 30KT 3988 7518 3980 7525
3971 7522
$$
NJC007-015-312300-
/O.CON.KPHI.SV.W.0153.000000T0000Z-140831T2300Z/
CAMDEN NJ-GLOUCESTER NJ-
638 PM EDT SUN AUG 31 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR CENTRAL GLOUCESTER AND WESTERN CAMDEN COUNTIES...
AT 634 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NATIONAL PARK TO GIBBSTOWN TO MULLICA HILL...OR ALONG
A LINE EXTENDING FROM GLOUCESTER CITY TO 11 MILES SOUTHWEST OF
GLOUCESTER CITY TO 15 MILES SOUTHWEST OF GLOUCESTER CITY...MOVING
EAST AT 35 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
GLOUCESTER CITY...OAKLYN...WENONAH AND OAK VALLEY BY 645 PM EDT...
HADDONFIELD...RUNNEMEDE...HADDON HEIGHTS AND GLENDORA BY 650 PM
EDT...
TAVISTOCK AND STRATFORD BY 655 PM EDT...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...POSSIBLE 1 INCH HAIL...AND DEADLY
CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A
SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
LAT...LON 3968 7500 3970 7529 3975 7532 3978 7532
3985 7526 3986 7521 3988 7519 3988 7515
3990 7513 3992 7503 3984 7501
TIME...MOT...LOC 2237Z 262DEG 30KT 3988 7518 3980 7525
3971 7522
$$
DRAGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 3:17 PM EDT | Special Weather Statement | PHI | Morris | 28 min |
| Aug 31, 3:39 PM EDT | Special Weather Statement | PHI | Morris | 36 min |
| Aug 31, 3:52 PM EDT | Special Weather Statement | PHI | Morris | 8 min |
| Aug 31, 5:52 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Salem | 53 min |
| Aug 31, 6:48 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester | 57 min |
| Aug 31, 6:49 PM EDT | Special Weather Statement | PHI | Monmouth | 26 min |
| Aug 31, 6:53 PM EDT | Special Weather Statement | PHI | Burlington, Camden | 52 min |
| Aug 31, 7:02 PM EDT | Special Weather Statement | PHI | Salem | 28 min |
| Aug 31, 7:20 PM EDT | Special Marine Warning | PHI | 25 min | |
| Aug 31, 7:38 PM EDT | Special Weather Statement | PHI | Salem | 52 min |
| Aug 31, 7:45 PM EDT | Special Weather Statement | PHI | Ocean | 45 min |
| Aug 31, 7:49 PM EDT | Special Marine Warning | PHI | 56 min | |
| Aug 31, 2:37 PM EDT | Special Weather Statement | PHI | Montgomery | 23 min |
| Aug 31, 2:44 PM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 5 hr |
| Aug 31, 2:57 PM EDT | Special Weather Statement | PHI | Montgomery | 33 min |
| Aug 31, 3:04 PM EDT | Special Weather Statement | PHI | Chester | 26 min |
| Aug 31, 4:52 PM EDT | Special Weather Statement | PHI | Chester | 23 min |
| Aug 31, 5:06 PM EDT | Special Weather Statement | PHI | Lehigh | 24 min |
| Aug 31, 5:10 PM EDT | Special Weather Statement | PHI | Chester | 35 min |
| Aug 31, 5:37 PM EDT | Special Weather Statement | PHI | Delaware, Philadelphia | 38 min |
| Aug 31, 5:57 PM EDT | Special Weather Statement | PHI | Delaware | 33 min |
| Aug 31, 6:19 PM EDT | Special Weather Statement | PHI | Delaware | 26 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2014Severe Thunderstorm Warnings in Pennsylvania, 2014Every severe thunderstorm warning in 2014
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.