Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 44, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 25, 2013, 4:49 PM EDT for Philadelphia County, Pennsylvania; Camden County, New Jersey. It was in force for 26 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
- Jun 25, 2013, 4:49 PM EDT (20:49 UTC)
- Expired
- Jun 25, 2013, 5:15 PM EDT
- In force
- 26 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Camden County, NJ, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 60 km from the middle of the area, began a volume at 20:49 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 25, 4:49 PM EDT | TSTM WND DMG | Philadelphia, PA | SEVERAL TREES DOWN IN SOUTHERN PART OF THE CITY. |
| Jun 25, 4:52 PM EDT | TSTM WND DMG | Camden, NJ | NUMEROUS TREES DOWN IN NORTHWESTERN PART OF CAMDEN COUNTY. |
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, 8.8 hours before the alert went out and 96 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
- 378 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 1107 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
268
WUUS51 KPHI 252049
SVRPHI
NJC007-PAC101-252115-
/O.NEW.KPHI.SV.W.0044.130625T2049Z-130625T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
449 PM EDT TUE JUN 25 2013
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
SOUTHWESTERN PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA...
* UNTIL 515 PM EDT
* AT 445 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THE STORM WAS NEAR MILLBOURNE...MOVING
SOUTHEAST AT 30 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CAMDEN AND BEN FRANKLIN BRIDGE AROUND 455 PM EDT...
GLOUCESTER CITY AND BELLMAWR AROUND 500 PM EDT...
MAGNOLIA AND CHERRY HILL AROUND 510 PM EDT...
VOORHEES AND SPRINGDALE AROUND 515 PM EDT...
LAT...LON 3975 7499 3980 7508 3984 7508 3989 7514
3988 7519 3987 7521 3990 7526 3994 7524
3995 7525 4002 7521 3993 7498 3989 7493
3984 7491
TIME...MOT...LOC 2049Z 297DEG 26KT 3994 7518
$$
FORECASTER: AMC1 follow-up statement
154
WWUS51 KPHI 252101
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
501 PM EDT TUE JUN 25 2013
PAC101-252111-
/O.CAN.KPHI.SV.W.0044.000000T0000Z-130625T2115Z/
PHILADELPHIA PA-
501 PM EDT TUE JUN 25 2013
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN PHILADELPHIA
COUNTY IS CANCELLED...
THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS MOVED OUT
OF THE AREA...THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.
LAT...LON 3975 7499 3980 7508 3984 7508 3989 7514
3996 7508 3989 7493 3986 7492 3983 7492
TIME...MOT...LOC 2101Z 296DEG 29KT 3988 7504
$$
NJC007-252115-
/O.CON.KPHI.SV.W.0044.000000T0000Z-130625T2115Z/
CAMDEN NJ-
501 PM EDT TUE JUN 25 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHWESTERN CAMDEN COUNTY...
AT 459 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR AUDUBON...OR NEAR
GLOUCESTER CITY...MOVING SOUTHEAST AT 35 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
VOORHEES AND GIBBSBORO AROUND 510 PM EDT...
LAT...LON 3975 7499 3980 7508 3984 7508 3989 7514
3996 7508 3989 7493 3986 7492 3983 7492
TIME...MOT...LOC 2101Z 296DEG 29KT 3988 7504
$$
FORECASTER: AMCThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 2:38 PM EDT | Special Weather Statement | PHI | Berks | 67 min |
| Jun 25, 3:26 PM EDT | Heat Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 20 hr |
| Jun 25, 3:45 PM EDT | Special Weather Statement | PHI | Chester | 60 min |
| Jun 25, 4:37 PM EDT | Special Weather Statement | PHI | Delaware | 53 min |
| Jun 24, 8:40 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 35 min |
| Jun 24, 8:56 PM EDT | Special Weather Statement | PHI | Burlington, Ocean | 64 min |
| Jun 24, 9:04 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 56 min |
| Jun 24, 9:15 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Jun 25, 3:30 PM EDT | Special Weather Statement | PHI | Somerset | 60 min |
| Jun 25, 3:36 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Warren | 54 min |
| Jun 25, 4:32 PM EDT | Special Weather Statement | PHI | Middlesex | 58 min |
| Jun 25, 4:58 PM EDT | Special Weather Statement | PHI | Burlington, Ocean | 62 min |
| Jun 25, 5:25 PM EDT | Special Weather Statement | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 65 min |
| Jun 25, 5:48 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic | 57 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2013Severe Thunderstorm Warnings in New Jersey, 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.