Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 71, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 14, 2008, 7:56 PM EDT for Bucks County, Delaware County, Philadelphia County, Pennsylvania; Burlington County, Camden County, Gloucester County, New Jersey. It was in force for 79 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 14, 2008, 7:56 PM EDT (23:56 UTC)
- Expired
- Jun 14, 2008, 9:15 PM EDT
- In force
- 79 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Bucks County, PA, Delaware County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 63 km from the middle of the area, began a volume at 23:56 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 |
|---|---|---|---|
| Jun 14, 8:17 PM EDT | TSTM WND GST 60 | Maple Shade, NJ |
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, 11.9 hours before the alert went out and 212 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
- 6 J/kg
- Mixed-layer CIN
- -223 J/kg
- Mixed-layer LCL
- 1344 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 142356
SVRPHI
NJC005-007-015-PAC017-045-101-150115-
/O.NEW.KPHI.SV.W.0071.080614T2356Z-080615T0115Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
756 PM EDT SAT JUN 14 2008
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
SOUTHEASTERN DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA...
SOUTHERN PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA...
NORTHWESTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
NORTHERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
NORTHERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 915 PM EDT
* AT 751 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
BECKETT...OR ABOUT 10 MILES NORTHEAST OF WILMINGTON...AND MOVING
EAST AT 24 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
FOLCROFT BY 805 PM...
PHILADELPHIA INTERNATIONAL AIRPORT BY 810 PM...
SOUTH PHILADELPHIA BY 815 PM...
WOODBURY BY 820 PM...
BELLMAWR AND GLOUCESTER CITY BY 825 PM...
CAMDEN BY 830 PM...
THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAINFALL WHICH MAY
RESULT IN LOCALIZED AREAS OF FLOODING. DO NOT DRIVE IN AREAS WHERE
WATER IS CROSSING THE ROAD.
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.
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS
LAT...LON 3969 7534 3971 7536 3986 7543 4020 7478
3982 7456
TIME...MOT...LOC 2356Z 249DEG 21KT 3981 7532
$$
TFG1 follow-up statement
000
WWUS51 KPHI 150027
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
826 PM EDT SAT JUN 14 2008
NJC015-PAC045-150036-
/O.CAN.KPHI.SV.W.0071.000000T0000Z-080615T0115Z/
GLOUCESTER NJ-DELAWARE PA-
826 PM EDT SAT JUN 14 2008
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DELAWARE AND
NORTHERN GLOUCESTER COUNTIES IS CANCELLED...
THE SEVERE STORMS HAVE MOVED NORTHEAST OF THE AREA.
LAT...LON 3975 7503 3975 7501 3976 7500 4000 7517
4020 7478 3982 7457
TIME...MOT...LOC 0026Z 249DEG 21KT 3994 7503
$$
NJC005-007-PAC017-101-150115-
/O.CON.KPHI.SV.W.0071.000000T0000Z-080615T0115Z/
CAMDEN NJ-PHILADELPHIA PA-BUCKS PA-BURLINGTON NJ-
826 PM EDT SAT JUN 14 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR NORTHWESTERN BURLINGTON...SOUTHEASTERN BUCKS...NORTHEASTERN
PHILADELPHIA AND NORTHERN CAMDEN COUNTIES...
AT 823 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR MERCHANTVILLE...OR NEAR CAMDEN...MOVING EAST AT 25 MPH.
GUSTS TO 60 MPH WERE JUST REPORTED IN MAPLE SHADE IN BURLINGTON
COUNTY.
THE SEVERE THUNDERSTORM WILL BE NEAR...
MOORESTOWN-LENOLA...RAMBLEWOOD...CINNAMINSON AND MARLTON BY 835 PM
EDT...
RIVERSIDE BY 840 PM EDT...
EDGEWATER PARK BY 845 PM EDT...
WILLINGBORO BY 850 PM EDT...
LUMBERTON BY 855 PM EDT...
MOUNT HOLLY BY 900 PM EDT...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE 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...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.
LAT...LON 3975 7503 3975 7501 3976 7500 4000 7517
4020 7478 3982 7457
TIME...MOT...LOC 0026Z 249DEG 21KT 3994 7503
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 2:23 PM EDT | Flash Flood Warning | PHI | Monroe | 3 hr |
| Jun 14, 3:02 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 58 min |
| Jun 14, 4:26 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe, Northampton | 64 min |
| Jun 14, 4:49 PM EDT | Flash Flood Warning | PHI | Carbon | 5 hr |
| Jun 14, 5:07 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 53 min |
| Jun 14, 5:18 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 57 min |
| Jun 14, 6:15 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 75 min |
| Jun 14, 6:28 PM EDT | Flash Flood Warning | PHI | Chester | 60 min |
| Jun 14, 6:48 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 3 hr |
| Jun 14, 7:05 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 70 min |
| Jun 14, 7:42 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Montgomery | 63 min |
| Jun 14, 6:04 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 56 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2008Severe Thunderstorm Warnings in New Jersey, 2008Every severe thunderstorm warning in 2008
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.