Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 208, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 4, 2012, 6:10 PM EDT for Burlington County, Camden County, Gloucester County, New Jersey; Bucks County, Philadelphia County, Pennsylvania. It was in force for 65 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
- Sep 4, 2012, 6:10 PM EDT (22:10 UTC)
- Expired
- Sep 4, 2012, 7:15 PM EDT
- In force
- 65 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Bucks County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 46 km from the middle of the area, began a volume at 22:12 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 |
|---|---|---|---|
| Sep 4, 6:31 PM EDT | TORNADO | Mount Ephraim, NJ | KINGS HIGHWAY AND JEFFERSON AVENUE. NUMEROUS TREES DOWN AND SOME ROOF DAMAGE AND WIRES PULLED FROM HOMES. CONFIRMED EF-0 TORNADO WITH WINDS OF 70 MPH. PLEASE REFER TO PNS FOR MORE. |
| Sep 4, 6:43 PM EDT | TSTM WND DMG | Mount Ephraim, NJ | NUMEROUS TREES DOWN IN THIS AREA. NUMEROUS FUNNEL CLOUD REPORTS BLACKHORSE PIKE AND KINGS HIGHWAY. |
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, 10.2 hours before the alert went out and 115 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
- 869 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 600 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
085 WUUS51 KPHI 042210 SVRPHI NJC005-007-015-PAC017-101-042315- /O.NEW.KPHI.SV.W.0208.120904T2210Z-120904T2315Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 610 PM EDT TUE SEP 4 2012 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA... SOUTHERN PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA... NORTHWESTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY... NORTHWESTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY... THIS INCLUDES THE CITIES OF...GLOUCESTER CITY...CAMDEN... NORTH CENTRAL GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY... * UNTIL 715 PM EDT * AT 608 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 NATIONAL PARK...OR NEAR GLOUCESTER CITY...AND MOVING NORTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WESTVILLE AROUND 615 PM EDT... GLOUCESTER CITY AND BELLMAWR AROUND 620 PM EDT... CAMDEN...MAGNOLIA AND BEN FRANKLIN BRIDGE AROUND 625 PM EDT... CHERRY HILL AROUND 635 PM EDT... SPRINGDALE AROUND 640 PM EDT... GREENTREE AND PALMYRA AROUND 645 PM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... DOPPLER RADAR HAS INDICATED SOME ROTATION WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. 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 4016 7486 3996 7466 3980 7513 3992 7524 TIME...MOT...LOC 2210Z 235DEG 16KT 3987 7515 $$ HEAVENER
1 follow-up statement
025
WWUS51 KPHI 042249
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
649 PM EDT TUE SEP 4 2012
NJC015-042259-
/O.CAN.KPHI.SV.W.0208.000000T0000Z-120904T2315Z/
GLOUCESTER NJ-
649 PM EDT TUE SEP 4 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL GLOUCESTER
COUNTY IS CANCELLED...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3990 7491 3990 7501 3998 7514 4016 7486
3996 7466
TIME...MOT...LOC 2249Z 235DEG 16KT 3997 7496
$$
NJC005-007-PAC017-101-042315-
/O.CON.KPHI.SV.W.0208.000000T0000Z-120904T2315Z/
CAMDEN NJ-BUCKS PA-PHILADELPHIA PA-BURLINGTON NJ-
649 PM EDT TUE SEP 4 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR NORTHWESTERN BURLINGTON...NORTHEASTERN PHILADELPHIA...
SOUTHEASTERN BUCKS AND NORTHWESTERN CAMDEN COUNTIES...
AT 646 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 MOORESTOWN-LENOLA...OR 7 MILES EAST OF CAMDEN...MOVING
NORTHEAST AT 20 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
RIVERSIDE AND DELANCO BY 700 PM EDT...
WILLINGBORO...EDGEWATER PARK AND BEVERLY BY 705 PM EDT...
LUMBERTON BY 710 PM EDT...
WESTAMPTON...BURLINGTON AND CROYDON BY 715 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS IN THE MOUNT
EPHRAIM AREA. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY 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 3990 7491 3990 7501 3998 7514 4016 7486
3996 7466
TIME...MOT...LOC 2249Z 235DEG 16KT 3997 7496
$$
HEAVENERThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 9:28 PM EDT | Areal Flood Advisory | PHI | Burlington, Ocean | 3 hr |
| Sep 4, 12:05 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Monmouth, Ocean | 4 hr |
| Sep 4, 1:25 AM EDT | Areal Flood Advisory | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean, Somerset | 4 hr |
| Sep 4, 1:34 AM EDT | Flash Flood Warning | PHI | Burlington, Ocean | 6 hr |
| Sep 4, 1:55 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Gloucester | 4 hr |
| Sep 4, 3:41 AM EDT | Areal Flood Advisory | PHI | Burlington, Camden | 2 hr |
| Sep 4, 3:48 AM EDT | Areal Flood Advisory | PHI | Ocean | 3 hr |
| Sep 4, 4:44 AM EDT | Areal Flood Advisory | PHI | Ocean | 2 hr |
| Sep 4, 4:55 AM EDT | Small Craft Advisory | PHI | 47 hr | |
| Sep 4, 6:47 AM EDT | Areal Flood Warning | PHI | Burlington, Ocean | 3 hr |
| Sep 4, 12:08 PM EDT | Areal Flood Warning | PHI | Atlantic, Burlington, Camden, Mercer, Middlesex, Monmouth and 2 more | 4 hr |
| Sep 4, 12:15 PM EDT | Areal Flood Warning | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 106 min |
| Sep 4, 12:39 PM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 56 hr |
| Sep 4, 1:13 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 62 min |
| Sep 4, 1:36 PM EDT | Flash Flood Warning | PHI | Monmouth, Ocean | 4 hr |
| Sep 4, 1:47 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Mercer | 3 hr |
| Sep 4, 1:58 PM EDT | Special Weather Statement | PHI | Burlington | 62 min |
| Sep 4, 2:11 PM EDT | Special Weather Statement | PHI | Monmouth | 34 min |
| Sep 4, 2:22 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Somerset, Warren | 4 hr |
| Sep 4, 2:59 PM EDT | Special Weather Statement | PHI | Hunterdon, Morris, Somerset, Warren | 61 min |
| Sep 4, 3:13 PM EDT | Tornado Warning | PHI | Burlington, Ocean | 32 min |
| Sep 4, 3:40 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Middlesex, Morris, Somerset, Sussex, Warren | 4 hr |
| Sep 4, 4:13 PM EDT | Areal Flood Advisory | PHI | Burlington, Monmouth, Ocean | 54 min |
| Sep 4, 4:37 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Salem | 3 hr |
| Sep 4, 6:02 PM EDT | Areal Flood Warning | PHI | Burlington | 16 hr |
| Sep 4, 6:30 PM EDT | Tornado Warning | PHI | Burlington, Camden | 30 min |
| Sep 4, 7:01 PM EDT | Areal Flood Warning | PHI | Burlington, Camden, Gloucester | 55 min |
| Sep 4, 7:06 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Sussex, Warren | 114 min |
| Sep 4, 7:15 PM EDT | Special Weather Statement | PHI | Mercer | 60 min |
| Sep 4, 7:33 PM EDT | Flash Flood Warning | PHI | Warren | 6 hr |
| Sep 4, 12:13 AM EDT | Areal Flood Advisory | PHI | Chester | 111 min |
| Sep 4, 4:00 AM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 84 min |
| Sep 4, 3:11 PM EDT | River Flood Warning | PHI | Delaware | 50 min |
| Sep 4, 3:32 PM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 4 hr |
| Sep 4, 5:22 PM EDT | Special Weather Statement | PHI | Philadelphia | 53 min |
| Sep 4, 6:34 PM EDT | Special Weather Statement | PHI | Lehigh | 56 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.