Alert archive / New Jersey / Tornado Warnings in 2017

Tornado Warning 2, NWS Philadelphia/Mount Holly

June 24, 2017Burlington County, Camden County, Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this tornado warning at Jun 24, 2017, 6:26 AM EDT for Burlington County, Camden County, Gloucester County, New Jersey. It was in force for 34 min. 3 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 24, 2017, 6:26 AM EDT (10:26 UTC)
Expired
Jun 24, 2017, 7:00 AM EDT
In force
34 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ

The radar

The Philadelphia radar (KDIX), 61 km from the middle of the area, began a volume at 10:27 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 24, 6:27 AM EDTTSTM WND DMGDeptford Twp, NJTREES AND WIRES DOWN.
Jun 24, 6:28 AM EDTTSTM WND DMGWenonah, NJTREES AND WIRES DOWN.
Jun 24, 6:41 AM EDTTSTM WND DMGPine Hill, NJTWO LARGE TREES DOWN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 10.4 hours before the alert went out and 207 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, Wallops Is Stn, VA at 00:00Z on 2017-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 760 joules per kilogram.LCLLFCEL10008507005003002001001 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, Wallops Is Stn, VA at 00:00Z on 2017-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 square meters per square second.19395878Sfc1 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
760 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1142 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
217 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.6

Open this sounding in Storm Lab

The text

As transmitted.

885 
WFUS51 KPHI 241026
TORPHI
NJC005-007-015-241100-
/O.NEW.KPHI.TO.W.0002.170624T1026Z-170624T1100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
626 AM EDT SAT JUN 24 2017

The National Weather Service in Mount Holly NJ has issued a

* Tornado Warning for...
  Central Camden County in southern New Jersey...
  North central Gloucester County in southern New Jersey...
  Southwestern Burlington County in southern New Jersey...

* Until 700 AM EDT

* At 626 AM EDT, severe thunderstorms capable of producing both
  tornadoes and extensive straight line wind damage were located over
  Woodbury Heights, or 7 miles southwest of Gloucester City, moving
  east at 45 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. 

* These dangerous storms will be near...
  Glassboro around 630 AM EDT. 
  Magnolia and Turnersville around 635 AM EDT. 
  Lindenwold and Echelon around 640 AM EDT. 
  Voorhees, Berlin and Marlton Lakes around 645 AM EDT. 
  Chesilhurst and Atco around 650 AM EDT. 

Other locations impacted by this tornadic thunderstorm include Laurel
Springs, Oak Valley, Runnemede, Glendora, Blackwood, Stratford, Pine
Valley, Gibbsboro, Clementon and Hi-Nella.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3973 7526 3985 7527 3986 7484 3972 7480
TIME...MOT...LOC 1026Z 269DEG 37KT 3979 7518 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

MPS
1 follow-up statement
738 
WWUS51 KPHI 241054
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
654 AM EDT SAT JUN 24 2017

NJC005-007-015-241104-
/O.EXP.KPHI.TO.W.0002.000000T0000Z-170624T1100Z/
Camden NJ-Gloucester NJ-Burlington NJ-
654 AM EDT SAT JUN 24 2017

...THE TORNADO WARNING FOR CENTRAL CAMDEN...NORTH CENTRAL GLOUCESTER
AND SOUTHWESTERN BURLINGTON COUNTIES WILL EXPIRE AT 700 AM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.  However gusty winds
are still possible with this thunderstorm.

LAT...LON 3973 7526 3985 7527 3986 7484 3972 7480
TIME...MOT...LOC 1054Z 269DEG 37KT 3979 7484 

$$

MPS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 8:54 PM EDTAreal Flood AdvisoryPHIMorris, Warren3 hr
Jun 24, 3:25 AM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset, Warren4 hr
Jun 24, 6:17 AM EDTSpecial Marine WarningPHI28 min
Jun 24, 6:20 AM EDTSpecial Weather StatementPHICumberland, Gloucester, Salem55 min
Jun 24, 6:39 AM EDTTornado WarningPHIMercer, Middlesex, Monmouth36 min
Jun 24, 6:42 AM EDTSpecial Marine WarningPHI63 min
Jun 24, 6:49 AM EDTSpecial Weather StatementPHIMonmouth, Ocean41 min
Jun 24, 6:58 AM EDTSpecial Weather StatementPHIBurlington, Monmouth32 min
Jun 24, 7:00 AM EDTSpecial Weather StatementPHICape May30 min
Jun 24, 7:02 AM EDTSpecial Marine WarningPHI58 min
Jun 24, 7:09 AM EDTAreal Flood AdvisoryPHIBurlington, Mercer, Middlesex, Monmouth, Ocean, Somerset4 hr
Jun 24, 7:19 AM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean56 min
Jun 24, 7:20 AM EDTSpecial Marine WarningPHI55 min
Jun 24, 7:21 AM EDTFlash Flood WarningPHIBurlington, Camden, Mercer, Somerset4 hr
Jun 24, 7:26 AM EDTFlash Flood WarningPHIMiddlesex, Somerset4 hr
Jun 24, 7:39 AM EDTSpecial Marine WarningPHI66 min
Jun 24, 7:54 AM EDTSpecial Marine WarningPHI66 min
Jun 24, 8:11 AM EDTSpecial Marine WarningPHI64 min
Jun 24, 8:16 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Monmouth, Ocean4 hr

Nearby

Tornado Warnings in New Jersey, 2017Every tornado warning in 2017Tornadoes in 2017

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.