Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 80, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 15, 2009, 6:37 PM EDT for Camden County, Gloucester County, New Jersey; Delaware County, Philadelphia County, Pennsylvania. It was in force for 53 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 15, 2009, 6:37 PM EDT (22:37 UTC)
- Expired
- Jun 15, 2009, 7:30 PM EDT
- In force
- 53 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), 66 km from the middle of the area, began a volume at 22:38 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 15, 6:50 PM EDT | TSTM WND DMG | Woodbury, NJ | TREE LIMBS DOWN. |
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, 10.6 hours before the alert went out and 88 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
- 196 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 943 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 152237 SVRPHI NJC007-015-PAC045-101-152330- /O.NEW.KPHI.SV.W.0080.090615T2237Z-090615T2330Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 637 PM EDT MON JUN 15 2009 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME SOUTHEASTERN DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA... SOUTHWESTERN PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA... WEST CENTRAL CAMDEN COUNTY IN SOUTHERN NEW JERSEY... CENTRAL GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY... * UNTIL 730 PM EDT * AT 635 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED NEAR GLOUCESTER CITY...OR NEAR CAMDEN...AND MOVING SOUTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WOODBURY AROUND 645 PM EDT... WOODBURY AROUND 650 PM EDT... 7 MILES NORTHEAST OF MULLICA HILL AROUND 700 PM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS A LONG HISTORY OF PRODUCING LARGE HAIL AND STRONG WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT 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 3972 7505 3967 7528 3986 7529 3990 7511 TIME...MOT...LOC 2236Z 332DEG 17KT 3989 7517 $$ GORSE/DEFINO
1 follow-up statement
000 WWUS51 KPHI 152313 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 713 PM EDT MON JUN 15 2009 PAC045-101-152321- /O.CAN.KPHI.SV.W.0080.000000T0000Z-090615T2330Z/ DELAWARE PA-PHILADELPHIA PA- 713 PM EDT MON JUN 15 2009 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN PHILADELPHIA AND EXTREME SOUTHEASTERN DELAWARE COUNTIES IS CANCELLED... THE SEVERE THUNDERSTORM HAS EXITED THE AREA, THEREFORE THE WARNING HAS BEEN CANCELLED. HOWEVER, A SMALL CLUSTER OF SHOWERS AND STORMS WILL AFFECTS PARTS OF THE AREA AND A SPECIAL WEATHER STATEMENT HAS BEEN ISSUED. LAT...LON 3981 7511 3972 7505 3967 7528 3981 7529 TIME...MOT...LOC 2311Z 336DEG 17KT 3975 7514 $$ NJC007-015-152330- /O.CON.KPHI.SV.W.0080.000000T0000Z-090615T2330Z/ CAMDEN NJ-GLOUCESTER NJ- 713 PM EDT MON JUN 15 2009 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR CENTRAL GLOUCESTER AND WEST CENTRAL CAMDEN COUNTIES... AT 711 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED NEAR PITMAN...OR 13 MILES SOUTH OF CAMDEN...MOVING SOUTHEAST AT 20 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT 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. THIS STORM HAS HAD A HISTORY OF PRODUCING LARGE HAIL AND GUSTY WINDS ACROSS EASTERN PENNSYLVANIA. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS && LAT...LON 3981 7511 3972 7505 3967 7528 3981 7529 TIME...MOT...LOC 2311Z 336DEG 17KT 3975 7514 $$ GORSE/DEFINO
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 7:05 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 55 min |
| Jun 15, 7:48 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 28 min |
| Jun 15, 2:33 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 57 min |
| Jun 15, 3:16 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Northampton | 59 min |
| Jun 15, 4:15 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery | 60 min |
| Jun 15, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 62 min |
| Jun 15, 5:55 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Montgomery, Philadelphia | 65 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2009Severe Thunderstorm Warnings in Pennsylvania, 2009Every severe thunderstorm warning in 2009
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.