Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 92, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 13, 2013, 7:57 AM EDT for Gloucester County, Salem County, New Jersey; New Castle County, Delaware. It was in force for 48 min. 4 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 13, 2013, 7:57 AM EDT (11:57 UTC)
- Expired
- Aug 13, 2013, 8:45 AM EDT
- In force
- 48 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties New Castle County, DE, Gloucester County, NJ, Salem County, NJ
The radar
The Philadelphia radar (KDIX), 87 km from the middle of the area, began a volume at 11:56 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 13, 8:05 AM EDT | TSTM WND DMG | Mannington Twp, NJ | DOWNED TREE ON NJ 45 |
| Aug 13, 8:30 AM EDT | TSTM WND DMG | Franklinville, NJ | TREES DOWN |
| Aug 13, 8:30 AM EDT | TSTM WND GST 65 | Glassboro, NJ | |
| Aug 13, 8:45 AM EDT | TSTM WND DMG | Clayton, NJ | 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
Wallops Is Stn, VA (KWAL), launched 00:00Z, 12.0 hours before the alert went out and 190 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
- 644 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 993 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
233
WUUS51 KPHI 131157
SVRPHI
DEC003-NJC015-033-131245-
/O.NEW.KPHI.SV.W.0092.130813T1157Z-130813T1245Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
757 AM EDT TUE AUG 13 2013
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
CENTRAL NEW CASTLE COUNTY IN NORTHERN DELAWARE...
NORTHERN SALEM COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 845 AM EDT
* AT 756 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THE STORM WAS NEAR DELAWARE CITY...MOVING EAST
AT 35 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
SALEM AND CARNEYS POINT AROUND 805 AM EDT...
WOODSTOWN AND ALLOWAY AROUND 815 AM EDT...
WOODSTOWN AROUND 820 AM EDT...
MULLICA HILL AROUND 825 AM EDT...
ELMER AROUND 830 AM EDT...
GLASSBORO AND PITMAN AROUND 835 AM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE WINDS OF MORE THAN 57 MPH...OR HAIL ONE
INCH OR LARGER.
&&
LAT...LON 3970 7560 3971 7552 3970 7551 3972 7550
3978 7505 3975 7502 3955 7501 3955 7504
3957 7506 3955 7507 3956 7552 3959 7555
3956 7557 3957 7565
TIME...MOT...LOC 1157Z 266DEG 32KT 3962 7556
$$
FORECASTER: DRAG2 follow-up statements
535
WWUS51 KPHI 131212
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
812 AM EDT TUE AUG 13 2013
DEC003-131221-
/O.CAN.KPHI.SV.W.0092.000000T0000Z-130813T1245Z/
NEW CASTLE DE-
812 AM EDT TUE AUG 13 2013
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL NEW CASTLE COUNTY IS
CANCELLED...
THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS MOVED OUT
OF THE AREA...THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.
LAT...LON 3973 7541 3978 7505 3975 7502 3955 7501
3955 7504 3957 7506 3955 7507 3956 7547
TIME...MOT...LOC 1211Z 266DEG 32KT 3973 7534 3963 7539
3957 7543
$$
NJC015-033-131245-
/O.CON.KPHI.SV.W.0092.000000T0000Z-130813T1245Z/
GLOUCESTER NJ-SALEM NJ-
812 AM EDT TUE AUG 13 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM EDT
FOR NORTHERN SALEM AND SOUTHERN GLOUCESTER COUNTIES...
AT 809 AM 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 WOODSTOWN TO ALLOWAY...MOVING EAST AT 35 MPH.
AT 809 AM THE STRONGEST WIND APPEARED TO BE NEAR SALEM.
SEVERE THUNDERSTORMS WILL BE NEAR...
MULLICA HILL AND ALLOWAY AROUND 820 AM EDT...
PITMAN AROUND 830 AM EDT...
TURNERSVILLE AND GLASSBORO AROUND 835 AM EDT...
MALAGA AND FRANKLINVILLE AROUND 840 AM EDT...
NEWFIELD AROUND 845 AM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE FOR DAMAGING WINDS...
LARGE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING...AWAY
FROM WINDOWS OR EVEN BELOW GROUND LEVEL.
&&
LAT...LON 3973 7541 3978 7505 3975 7502 3955 7501
3955 7504 3957 7506 3955 7507 3956 7547
TIME...MOT...LOC 1211Z 266DEG 32KT 3973 7534 3963 7539
3957 7543
$$
FORECASTER: DRAG246
WWUS51 KPHI 131226
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
826 AM EDT TUE AUG 13 2013
NJC015-033-131245-
/O.CON.KPHI.SV.W.0092.000000T0000Z-130813T1245Z/
GLOUCESTER NJ-SALEM NJ-
826 AM EDT TUE AUG 13 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM EDT
FOR CENTRAL SALEM AND CENTRAL GLOUCESTER COUNTIES...
AT 822 AM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM MULLICA HILL TO WOODSTOWN TO
ALLOWAY...MOVING EAST AT 35 MPH. AT 822 AM THE STRONGEST PART OF
THE LINE WAS NEAR WOODSTOWN.
SEVERE THUNDERSTORMS WILL BE NEAR...
TURNERSVILLE AND GLASSBORO AROUND 835 AM EDT...
FRANKLINVILLE AND CLAYTON AROUND 840 AM EDT...
MALAGA AND NEWFIELD AROUND 845 AM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE FOR DAMAGING WINDS...
LARGE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING...AWAY
FROM WINDOWS OR EVEN BELOW GROUND LEVEL.
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
&&
LAT...LON 3955 7504 3957 7506 3955 7507 3956 7538
3975 7530 3978 7505 3974 7502 3955 7501
TIME...MOT...LOC 1226Z 267DEG 29KT 3976 7517 3965 7525
3957 7529
$$
FORECASTER: DRAGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 2:45 AM EDT | Flash Flood Watch | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 6 more | 9 hr |
| Aug 13, 6:23 AM EDT | Severe Thunderstorm Warning | PHI | Salem | 67 min |
| Aug 13, 7:05 AM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 40 min |
| Aug 13, 7:11 AM EDT | Special Marine Warning | PHI | 19 min | |
| Aug 13, 7:16 AM EDT | Special Weather Statement | PHI | Camden, Gloucester, Salem | 59 min |
| Aug 13, 7:22 AM EDT | Areal Flood Advisory | PHI | Camden, Gloucester, Salem | 7 hr |
| Aug 13, 7:33 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Warren | 7 hr |
| Aug 13, 7:51 AM EDT | Special Marine Warning | PHI | 24 min | |
| Aug 13, 7:54 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 8 hr |
| Aug 13, 7:54 AM EDT | Special Weather Statement | PHI | Camden | 66 min |
| Aug 13, 8:20 AM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer | 8 hr |
| Aug 13, 8:36 AM EDT | Special Weather Statement | PHI | Mercer | 39 min |
| Aug 13, 8:44 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Salem | 61 min |
| Aug 13, 8:59 AM EDT | Flash Flood Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 7 hr |
| Aug 13, 9:07 AM EDT | Special Weather Statement | PHI | Cumberland, Salem | 38 min |
| Aug 13, 9:11 AM EDT | Special Weather Statement | PHI | Burlington | 49 min |
| Aug 13, 9:22 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 38 min |
| Aug 13, 9:26 AM EDT | Special Weather Statement | PHI | Atlantic | 34 min |
| Aug 13, 9:34 AM EDT | Special Marine Warning | PHI | 56 min | |
| Aug 13, 9:42 AM EDT | Flash Flood Warning | PHI | Atlantic, Burlington, Cape May, Cumberland, Hunterdon, Middlesex and 4 more | 5 hr |
| Aug 13, 9:43 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Ocean | 47 min |
| Aug 13, 9:49 AM EDT | Special Weather Statement | PHI | Atlantic, Cumberland | 56 min |
| Aug 13, 10:01 AM EDT | Special Weather Statement | PHI | Monmouth | 29 min |
| Aug 13, 10:04 AM EDT | Special Weather Statement | PHI | Ocean | 41 min |
| Aug 13, 10:12 AM EDT | Tornado Warning | PHI | Ocean | 33 min |
| Aug 13, 10:32 AM EDT | Severe Thunderstorm Warning | PHI | Ocean | 28 min |
| Aug 13, 10:39 AM EDT | Special Marine Warning | PHI | 66 min | |
| Aug 13, 10:51 AM EDT | Special Weather Statement | PHI | Atlantic | 54 min |
| Aug 13, 11:51 AM EDT | Special Marine Warning | PHI | 84 min | |
| Aug 13, 1:10 PM EDT | Special Marine Warning | PHI | 65 min | |
| Aug 13, 2:18 PM EDT | Areal Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 9 hr |
| Aug 13, 3:30 PM EDT | Small Craft Advisory | PHI | 24 hr | |
| Aug 13, 6:32 AM EDT | Tornado Warning | PHI | New Castle | 43 min |
| Aug 13, 6:51 AM EDT | Areal Flood Advisory | PHI | New Castle | 7 hr |
| Aug 13, 7:31 AM EDT | Special Weather Statement | PHI | New Castle | 44 min |
| Aug 13, 8:37 AM EDT | River Flood Warning | PHI | New Castle | 4 hr |
| Aug 13, 11:19 AM EDT | Special Weather Statement | PHI | Kent | 56 min |
| Aug 13, 1:50 PM EDT | River Flood Warning | PHI | New Castle | 119 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2013Severe Thunderstorm Warnings in Delaware, 2013Every severe thunderstorm warning in 2013
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.