Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 53, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 19, 2011, 4:06 PM EDT for Philadelphia County, Pennsylvania; Burlington County, Camden County, Gloucester County, New Jersey. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 19, 2011, 4:06 PM EDT (20:06 UTC)
- Expired
- May 19, 2011, 5:00 PM EDT
- In force
- 54 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 55 km from the middle of the area, began a volume at 20:08 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 19, 12:20 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.1 hours before the alert went out and 101 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
- 143 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 819 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
926 WUUS51 KPHI 192006 SVRPHI NJC005-007-015-PAC101-192100- /O.NEW.KPHI.SV.W.0053.110519T2006Z-110519T2100Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 406 PM EDT THU MAY 19 2011 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA... THIS INCLUDES THE CITY OF PHILADELPHIA... WEST CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY... WESTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY... THIS INCLUDES THE CITY OF CAMDEN... NORTH CENTRAL GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY... * UNTIL 500 PM EDT * AT 404 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR TURNERSVILLE...OR 13 MILES SOUTH OF CAMDEN...AND MOVING NORTH AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LINDENWOLD AROUND 425 PM EDT... MAGNOLIA...WESTVILLE AND VOORHEES AROUND 435 PM EDT... BELLMAWR AROUND 440 PM EDT... GLOUCESTER CITY AND SPRINGDALE AROUND 445 PM EDT... CHERRY HILL AND GREENTREE AROUND 450 PM EDT... CAMDEN AROUND 455 PM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...HEAVY RAIN WILL OCCUR WITH THESE STORMS AND CAUSE LOW-LYING AND POOR DRAINAGE FLOODING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT THURSDAY EVENING FOR NEW JERSEY AND EASTERN PENNSYLVANIA. && LAT...LON 4001 7515 4002 7487 3971 7496 3974 7515 TIME...MOT...LOC 2006Z 183DEG 12KT 3976 7506 $$ PO
1 follow-up statement
373 WWUS51 KPHI 192032 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 432 PM EDT THU MAY 19 2011 NJC005-015-PAC101-192039- /O.CAN.KPHI.SV.W.0053.000000T0000Z-110519T2100Z/ GLOUCESTER NJ-PHILADELPHIA PA-BURLINGTON NJ- 432 PM EDT THU MAY 19 2011 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL BURLINGTON... CENTRAL PHILADELPHIA AND NORTH CENTRAL GLOUCESTER COUNTIES IS CANCELLED... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT THURSDAY EVENING FOR NEW JERSEY AND EASTERN PENNSYLVANIA. LAT...LON 3988 7507 3985 7494 3971 7496 3978 7507 TIME...MOT...LOC 2029Z 183DEG 12KT 3976 7499 $$ NJC007-192100- /O.CON.KPHI.SV.W.0053.000000T0000Z-110519T2100Z/ CAMDEN NJ- 432 PM EDT THU MAY 19 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR CENTRAL CAMDEN COUNTY... AT 425 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR SICKLERVILLE...OR 14 MILES SOUTHEAST OF CAMDEN...MOVING NORTH AT 15 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... PINE HILL AND PINE VALLEY BY 435 PM EDT... CLEMENTON AND BLACKWOOD BY 440 PM EDT... LINDENWOLD AND LAUREL SPRINGS BY 445 PM EDT... GIBBSBORO...STRATFORD AND HI-NELLA BY 450 PM EDT... VOORHEES BY 455 PM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT THURSDAY EVENING FOR NEW JERSEY AND EASTERN PENNSYLVANIA. && LAT...LON 3988 7507 3985 7494 3971 7496 3978 7507 TIME...MOT...LOC 2029Z 183DEG 12KT 3976 7499 $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 12:31 PM EDT | Special Weather Statement | PHI | Berks | 89 min |
| May 19, 1:26 PM EDT | Areal Flood Advisory | PHI | Berks | 5 hr |
| May 19, 1:29 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 61 min |
| May 19, 2:22 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 41 min |
| May 19, 2:54 PM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Northampton | 3 hr |
| May 19, 3:00 PM EDT | Special Weather Statement | PHI | Carbon | 60 min |
| May 19, 3:01 PM EDT | Areal Flood Advisory | PHI | Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| May 19, 3:05 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 55 min |
| May 19, 3:12 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 63 min |
| May 19, 3:15 PM EDT | Special Weather Statement | PHI | Chester, Delaware, Montgomery, Philadelphia | 60 min |
| May 19, 3:37 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 53 min |
| May 19, 3:40 PM EDT | Areal Flood Advisory | PHI | Bucks, Lehigh, Monroe, Northampton | 5 hr |
| May 19, 3:52 PM EDT | Coastal Flood Statement | PHI | Delaware, Philadelphia | 8 hr |
| May 19, 4:18 PM EDT | Special Weather Statement | PHI | Monroe | 57 min |
| May 19, 4:20 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Northampton | 55 min |
| May 19, 4:28 PM EDT | Special Weather Statement | PHI | Bucks | 62 min |
| May 19, 4:31 PM EDT | Special Weather Statement | PHI | Bucks | 59 min |
| May 19, 4:39 PM EDT | Flash Flood Warning | PHI | Bucks, Monroe, Northampton | 4 hr |
| May 19, 4:50 PM EDT | Special Weather Statement | PHI | Monroe | 55 min |
| May 19, 5:08 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 50 min |
| May 19, 7:23 PM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 82 min |
| May 19, 7:50 PM EDT | Special Weather Statement | PHI | Philadelphia | 55 min |
| May 18, 8:29 PM EDT | Areal Flood Warning | PHI | Morris | 4 days |
| May 19, 3:35 AM EDT | River Flood Warning | PHI | Essex, Morris, Passaic | 4 days |
| May 19, 10:26 AM EDT | River Flood Warning | PHI | Essex, Passaic | 65 hr |
| May 19, 10:28 AM EDT | River Flood Warning | PHI | Passaic | 11 hr |
| May 19, 2:19 PM EDT | Special Weather Statement | PHI | Camden, Cumberland, Gloucester, Salem | 56 min |
| May 19, 2:34 PM EDT | Special Weather Statement | PHI | Warren | 56 min |
| May 19, 3:23 PM EDT | Special Weather Statement | PHI | Hunterdon | 67 min |
| May 19, 3:34 PM EDT | Small Craft Advisory for Hazardous Seas | PHI | 12 hr | |
| May 19, 4:02 PM EDT | Special Weather Statement | PHI | Camden, Gloucester | 58 min |
| May 19, 5:21 PM EDT | Special Weather Statement | PHI | Burlington | 54 min |
| May 19, 5:43 PM EDT | Special Marine Warning | PHI | 62 min | |
| May 19, 5:58 PM EDT | Special Weather Statement | PHI | Sussex | 47 min |
| May 19, 6:08 PM EDT | Special Weather Statement | PHI | Cumberland, Salem | 52 min |
| May 19, 7:34 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cumberland, Gloucester | 56 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2011Severe Thunderstorm Warnings in Pennsylvania, 2011Every severe thunderstorm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.