Alert archive / New Jersey / Tornado Warnings in 2020

Tornado Warning 4, NWS Philadelphia/Mount Holly

June 3, 2020Burlington County, Camden County, Gloucester County, New Jersey; Delaware County, Montgomery County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this tornado warning at Jun 3, 2020, 7:21 PM EDT for Burlington County, Camden County, Gloucester County, New Jersey; Delaware County, Montgomery County, Philadelphia County, Pennsylvania. It was in force for 24 min. 15 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
Jun 3, 2020, 7:21 PM EDT (23:21 UTC)
Expired
Jun 3, 2020, 7:45 PM EDT
In force
24 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

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), 64 km from the middle of the area, began a volume at 23:22 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

TimeReportWhereRemark
Jun 3, 7:23 PM EDTTSTM WND DMGCollingdale, PASEVERAL REPORTS OF TREES AND WIRES DOWN IN THE AREA. TIME ESTIMATED.
Jun 3, 7:27 PM EDTTSTM WND GST 601 W Philadelphia Intl, PA
Jun 3, 7:28 PM EDTTSTM WND DMG1 Ssw Darby, PADOWNED TREE AND WIRES ON LAUREL ROAD. TIME ESTIMATED.
Jun 3, 7:30 PM EDTTSTM WND DMGDarby, PADOWNED TREE AND WIRES NEAR ALFRED AVENUE. TIME ESTIMATED.
Jun 3, 7:30 PM EDTTSTM WND DMGSharon Hill, PADOWNED TREES AND WIRES IN THE AREA. TIME ESTIMATED.
Jun 3, 7:32 PM EDTTSTM WND GST 68Philadelphia Internatio, PA
Jun 3, 7:35 PM EDTTSTM WND DMGGlendora, NJDOWNED TREES AND POWER LINES IN THE AREA. ESTIMATED GUSTS UP TO 70 MPH.
Jun 3, 7:38 PM EDTTSTM WND DMGBlackwood, NJSEVERAL REPORTS OF TREES AND POWER LINES DOWN. TIME ESTIMATED.
Jun 3, 7:40 PM EDTTSTM WND DMG1 Wnw Stratford, NJNUMEROUS TREES AND LIMBS DOWN IN THE AREA. TIME ESTIMATED.
Jun 3, 7:40 PM EDTTSTM WND DMGBlackwood, NJDOWNED TREE LIMBS AND FENCING AT A RESIDENCE. TIME ESTIMATED.
Jun 3, 7:41 PM EDTTSTM WND DMGLawnside, NJDOWNED TREES ON NEW JERSEY TURNPIKE NEAR EXIT 3. TIME ESTIMATED FROM RADAR.
Jun 3, 7:45 PM EDTTSTM WND DMGMagnolia, NJSEVERAL DOWNED TREES AND LIMBS IN THE AREA.
Jun 3, 7:46 PM EDTTSTM WND DMG1 Wsw Somerdale, NJCORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1 WSW SOMERDALE. DEBRIS DOWN ON THE RAILROAD TRACKS ALONG ATLANTIC AVE.
Jun 3, 7:47 PM EDTTSTM WND DMG1 Ssw Somerdale, NJCORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1 SSW SOMERDALE. LARGE TREE DOWN WITH MULTIPLE PARKED CARS UNDERNEATH.
Jun 3, 7:55 PM EDTTSTM WND DMGCherry Hill, NJLARGE TREE SNAPPED FROM ITS BASE.

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.

IssuedProductOfficeLasted
Jun 3, 3:52 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 11.4 hours before the alert went out and 220 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2020-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2020-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 273 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2031 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
273 m²/s²
0-3 km storm-relative helicity
269 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

412 
WFUS51 KPHI 032321
TORPHI
NJC005-007-015-PAC045-091-101-032345-
/O.NEW.KPHI.TO.W.0004.200603T2321Z-200603T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
721 PM EDT Wed Jun 3 2020

The National Weather Service in Mount Holly NJ has issued a

* Tornado 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...
  Southeastern Montgomery County in southeastern Pennsylvania...
  Southwestern Philadelphia County in southeastern Pennsylvania...
  East central Delaware County in southeastern Pennsylvania...

* Until 745 PM EDT.
    
* At 721 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Morris Park, or near Philadelphia, moving
  southeast at 40 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Philadelphia, Camden, Gloucester City, Cherry Hill, Evesham, Mount
  Laurel, Deptford, Voorhees, West Deptford, Lindenwold, Bellmawr,
  Yeadon, Woodbury, Berlin, Palmyra, Folcroft, Swarthmore, Paulsboro,
  Magnolia and Westville.

This includes the following highways...
 Atlantic City Expressway between mile markers 42 and 44.
 Interstate 295 in New Jersey between mile markers 21 and 40.
 Interstate 95 in Pennsylvania between mile markers 10 and 27.
 New Jersey Turnpike between exits 3 and 4.
 Interstate 476 in Pennsylvania between mile markers 4 and 7.
 Interstate 676 in New Jersey between mile markers 0 and 4.
 Interstate 676 in Pennsylvania between mile markers 0 and 1.
 Interstate 76 in New Jersey between mile markers 0 and 3.
 Interstate 76 in Pennsylvania between mile markers 336 and 351.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3992 7538 4006 7525 3994 7482 3972 7497
TIME...MOT...LOC 2321Z 294DEG 33KT 3998 7524 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Fitzsimmons
1 follow-up statement
023 
WWUS51 KPHI 032342
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
742 PM EDT Wed Jun 3 2020

NJC005-007-015-PAC045-091-101-032349-
/O.EXP.KPHI.TO.W.0004.000000T0000Z-200603T2345Z/
Camden NJ-Gloucester NJ-Burlington NJ-Montgomery PA-Philadelphia PA-
Delaware PA-
742 PM EDT Wed Jun 3 2020

...THE TORNADO WARNING FOR NORTHWESTERN CAMDEN...NORTH CENTRAL
GLOUCESTER...WEST CENTRAL BURLINGTON...SOUTHEASTERN MONTGOMERY...
SOUTHWESTERN PHILADELPHIA AND EAST CENTRAL DELAWARE COUNTIES WILL
EXPIRE AT 745 PM EDT...
    
The tornado threat has diminished and the Tornado Warning will be 
allowed to expire at 745 PM. However, large hail and damaging winds 
remain likely and a Severe Thunderstorm Warning remains in effect 
for the area.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
southern New Jersey...and southeastern Pennsylvania.

Remember, a Severe Thunderstorm Warning still remains in effect for
much of the Greater Philadelphia area. 

LAT...LON 3992 7538 4006 7525 3994 7482 3972 7497
TIME...MOT...LOC 2339Z 294DEG 33KT 3991 7505 

$$

Fitzsimmons

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 3, 12:24 AM EDTSpecial Weather StatementPHIWarren51 min
Jun 3, 1:08 AM EDTSpecial Weather StatementPHISomerset37 min
Jun 3, 1:44 AM EDTAreal Flood AdvisoryPHIHunterdon, Middlesex, Morris, Somerset, Warren3 hr
Jun 3, 9:48 AM EDTSmall Craft AdvisoryPHI8 hr
Jun 3, 11:04 AM EDTSevere Thunderstorm WarningPHIHunterdon, Warren41 min
Jun 3, 11:38 AM EDTSevere Thunderstorm WarningPHIHunterdon37 min
Jun 3, 11:59 AM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 1 more46 min
Jun 3, 12:06 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem39 min
Jun 3, 12:35 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Mercer, Middlesex, Monmouth, Ocean and 1 more55 min
Jun 3, 12:38 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more69 min
Jun 3, 12:43 PM EDTSpecial Marine WarningPHI43 min
Jun 3, 1:01 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean28 min
Jun 3, 1:14 PM EDTSpecial Marine WarningPHI61 min
Jun 3, 1:14 PM EDTSpecial Weather StatementPHICape May, Cumberland61 min
Jun 3, 1:20 PM EDTSpecial Marine WarningPHI55 min
Jun 3, 2:11 PM EDTSpecial Marine WarningPHI34 min
Jun 3, 7:02 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Cumberland, Gloucester, Salem58 min
Jun 3, 7:11 PM EDTSevere Thunderstorm WarningPHISussex, Warren64 min
Jun 3, 7:53 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex36 min
Jun 3, 7:55 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Ocean and 1 more33 min
Jun 3, 11:29 AM EDTSevere Thunderstorm WarningPHIBerks, Chester, Montgomery46 min
Jun 3, 5:46 PM EDTSevere Thunderstorm WarningPHIBerks44 min
Jun 3, 6:26 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Montgomery64 min

Nearby

Tornado Warnings in New Jersey, 2020Tornado Warnings in Pennsylvania, 2020Every tornado warning in 2020Tornadoes in 2020

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.