Alert archive / New Jersey / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 111, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 18, 2016, 3:41 PM EDT for Burlington County, Camden County, Gloucester County, New Jersey; Delaware County, Montgomery County, Philadelphia County, Pennsylvania. It was in force for 49 min. 5 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
- Jul 18, 2016, 3:41 PM EDT (19:41 UTC)
- Expired
- Jul 18, 2016, 4:30 PM EDT
- In force
- 49 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 19:40 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 |
|---|---|---|---|
| Jul 18, 3:41 PM EDT | TSTM WND DMG | Lower Merion Twp, PA | TREE DAMAGE. TIME ESTIMATED FROM RADAR. |
| Jul 18, 3:43 PM EDT | TSTM WND DMG | Haverford Twp, PA | SEVERAL LARGE TREE LIMBS DOWN ESPECIALLY NEAR THE HIGH SCHOOL. SOME WIRES ALSO PULLED DOWN. TIME ESTIMATED FROM RADAR. |
| Jul 18, 3:43 PM EDT | TSTM WND DMG | Haverford Twp, PA | SEVERAL LARGE TREES DOWN OR SNAPPED AT THE BASE... SOME FALLING ONTO CARS AND OTHER PROPERTY. SOME LARGE LIMBS TORN OFF WHICH PULLED DOWN WIRES ESPECIALLY NEAR THE HIGH SCHOOL. A SILO AT THE SWISS FARMS WAS DESTROYED. TIME ESTIMATED FROM RADAR. |
| Jul 18, 3:45 PM EDT | TSTM WND DMG | Upper Darby, PA | MULTIPLE TREES AND TREE LIMBS DOWN... INCLUDING ONE LARGE TREE DOWN ALONG A MAIN HIGHWAY. TIME ESTIMATED FROM RADAR. |
| Jul 18, 4:30 PM EDT | TSTM WND GST 47 | Blackwood, NJ |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 18, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.7 hours before the alert went out and 216 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
- 200 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 1480 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
689 WUUS51 KPHI 181941 SVRPHI NJC005-007-015-PAC045-091-101-182030- /O.NEW.KPHI.SV.W.0111.160718T1941Z-160718T2030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 341 PM EDT MON JUL 18 2016 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY... NORTH CENTRAL GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY... WEST CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY... EASTERN DELAWARE COUNTY IN SOUTHEASTERN PENNSYLVANIA... SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA... PHILADELPHIA COUNTY IN SOUTHEASTERN PENNSYLVANIA... * UNTIL 430 PM EDT * AT 341 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BROOMALL...OR 10 MILES WEST OF PHILADELPHIA...MOVING EAST AT 20 MPH. HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. SOURCE...RADAR INDICATED. IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. * LOCATIONS IMPACTED INCLUDE... PHILADELPHIA...CAMDEN...GLOUCESTER CITY...CHERRY HILL...DEPTFORD... WEST DEPTFORD...BELLMAWR...YEADON...WOODBURY...PALMYRA... FOLCROFT...SWARTHMORE...PAULSBORO...MAGNOLIA...WESTVILLE... NARBERTH...WOODBURY HEIGHTS...NATIONAL PARK... EAST LANSDOWNE AND BROOKLAWN. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 3991 7541 4005 7530 4003 7491 3974 7508 TIME...MOT...LOC 1941Z 287DEG 17KT 3998 7533 HAIL...0.75IN WIND...60MPH $$ PO
1 follow-up statement
702
WWUS51 KPHI 182020
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
420 PM EDT MON JUL 18 2016
PAC045-091-101-182029-
/O.CAN.KPHI.SV.W.0111.000000T0000Z-160718T2030Z/
DELAWARE PA-MONTGOMERY PA-PHILADELPHIA PA-
420 PM EDT MON JUL 18 2016
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN DELAWARE...
SOUTHEASTERN MONTGOMERY AND PHILADELPHIA COUNTIES IS CANCELLED...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA...THEREFORE THE WARNING HAS BEEN CANCELLED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR
SOUTHERN NEW JERSEY...AND SOUTHEASTERN PENNSYLVANIA.
LAT...LON 3974 7508 3982 7525 3989 7517 3988 7515
3990 7513 3992 7513 4004 7498 4003 7491
TIME...MOT...LOC 2019Z 287DEG 17KT 3993 7510
$$
NJC005-007-015-182030-
/O.CON.KPHI.SV.W.0111.000000T0000Z-160718T2030Z/
CAMDEN NJ-GLOUCESTER NJ-BURLINGTON NJ-
420 PM EDT MON JUL 18 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHWESTERN CAMDEN...NORTH CENTRAL GLOUCESTER AND WEST CENTRAL
BURLINGTON COUNTIES...
AT 419 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED
OVER CAMDEN...MOVING EAST AT 20 MPH.
HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
CAMDEN...GLOUCESTER CITY...CHERRY HILL...DEPTFORD...WEST DEPTFORD...
BELLMAWR...WOODBURY...RIVERSIDE...PALMYRA...PAULSBORO...MAGNOLIA...
WESTVILLE...WOODBURY HEIGHTS...NATIONAL PARK...BROOKLAWN...
AUDUBON PARK...ERLTON-ELLISBURG...GOLDEN TRIANGLE...
CHERRY HILL MALL AND BARCLAY-KINGSTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3974 7508 3982 7525 3989 7517 3988 7515
3990 7513 3992 7513 4004 7498 4003 7491
TIME...MOT...LOC 2019Z 287DEG 17KT 3993 7510
HAIL...0.75IN
WIND...60MPH
$$
POThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 4:04 AM EDT | Small Craft Advisory | PHI | 12 hr | |
| Jul 18, 2:42 PM EDT | Special Weather Statement | PHI | Sussex | 63 min |
| Jul 18, 2:51 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 39 min |
| Jul 18, 3:25 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 50 min |
| Jul 18, 4:04 PM EDT | Special Weather Statement | PHI | Camden, Gloucester, Salem | 56 min |
| Jul 18, 4:07 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset | 38 min |
| Jul 18, 4:14 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 46 min |
| Jul 18, 4:15 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Salem | 2 hr |
| Jul 18, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 38 min |
| Jul 18, 4:47 PM EDT | Special Marine Warning | PHI | 88 min | |
| Jul 18, 4:47 PM EDT | Special Weather Statement | PHI | Burlington, Camden | 43 min |
| Jul 18, 5:00 PM EDT | Special Marine Warning | PHI | 60 min | |
| Jul 18, 5:07 PM EDT | Special Marine Warning | PHI | 83 min | |
| Jul 18, 5:22 PM EDT | Special Weather Statement | PHI | Cumberland, Salem | 53 min |
| Jul 18, 5:49 PM EDT | Special Marine Warning | PHI | 116 min | |
| Jul 18, 5:51 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 24 min |
| Jul 18, 6:05 PM EDT | Special Marine Warning | PHI | 85 min | |
| Jul 18, 6:23 PM EDT | Special Marine Warning | PHI | 97 min | |
| Jul 18, 7:43 PM EDT | Special Weather Statement | PHI | Sussex | 47 min |
| Jul 18, 12:58 PM EDT | Special Weather Statement | PHI | Carbon | 62 min |
| Jul 18, 1:48 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 57 min |
| Jul 18, 1:52 PM EDT | Special Weather Statement | PHI | Chester | 38 min |
| Jul 18, 2:28 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Northampton | 47 min |
| Jul 18, 3:17 PM EDT | Special Weather Statement | PHI | Delaware, Montgomery, Philadelphia | 43 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2016Severe Thunderstorm Warnings in Pennsylvania, 2016Every severe thunderstorm warning in 2016
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.