Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 365, NWS Philadelphia/Mount Holly

August 19, 2019Burlington County, Camden County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 19, 2019, 4:03 PM EDT for Burlington County, Camden County, New Jersey. It was in force for 42 min. 4 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: Aug 19, 2019, 4:03 PM EDT (20:03 UTC)
Expired: Aug 19, 2019, 4:45 PM EDT
In force: 42 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Burlington County, NJ, Camden County, NJ

The radar

The Philadelphia radar (KDIX), 34 km from the middle of the area, began a volume at 20:04 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
Aug 19, 4:03 PM EDT	TSTM WND DMG	2 W Columbus, NJ	NUMEROUS TREES DOWN IN THE COLUMBUS AREA ESPECIALLY ON JACKSONVILLE ROAD. TIME ESTIMATED FROM RADAR.
Aug 19, 4:12 PM EDT	TSTM WND GST 78	2 W Jobstown, NJ	MEASURED AT THE COLUMBUS NJ WEATHERNET WEATHER STATION.
Aug 19, 4:34 PM EDT	TSTM WND DMG	1 W Medford Lakes, NJ	MPING REPORT OF LARGE TREE LIMBS SNAPPED AND POWER POLES BROKEN. TIME ESTIMATED FROM RADAR.
Aug 19, 4:38 PM EDT	TSTM WND DMG	1 Sse Medford, NJ	TREE BRANCHES AND POWER POLES DOWNED IN THE MEDFORD AREA ACCORDING TO MPING. TIME ESTIMATED FROM RADAR.

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.1 hours before the alert went out and 195 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1215 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 841 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 39 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

474 
WUUS51 KPHI 192003
SVRPHI
NJC005-007-192045-
/O.NEW.KPHI.SV.W.0365.190819T2003Z-190819T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
403 PM EDT Mon Aug 19 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central Camden County in southern New Jersey...
  Central Burlington County in southern New Jersey...

* Until 445 PM EDT.

* At 403 PM EDT, a severe thunderstorm was located over Springdale,
  or 8 miles east of Gloucester City, moving east at 10 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Wind damage to 
           roofs, siding, trees, and power lines is possible.

* Locations impacted include...
  Evesham, Mount Laurel, Voorhees, Medford, Lindenwold, Lumberton,
  Florence, Burlington, Bristol, Mount Holly, Tabernacle, Shamong,
  Pemberton, Ramblewood, Atsion, Echelon, Marlton, Leisuretowne,
  Jacksonville and Springdale.

This includes the following highways...
 Interstate 295 in New Jersey between mile markers 34 and 56.
 New Jersey Turnpike between exits 4 and 7A.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3973 7471 3984 7502 3995 7497 4001 7489
      4010 7485 4014 7469 3999 7467
TIME...MOT...LOC 2003Z 275DEG 9KT 3989 7496 

HAIL...1.00IN
WIND...60MPH
 
$$

Staarmann

1 follow-up statement

273 
WWUS51 KPHI 192037
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
437 PM EDT Mon Aug 19 2019

NJC005-007-192045-
/O.CON.KPHI.SV.W.0365.000000T0000Z-190819T2045Z/
Camden NJ-Burlington NJ-
437 PM EDT Mon Aug 19 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR CENTRAL CAMDEN AND CENTRAL BURLINGTON COUNTIES...

At 437 PM EDT, a severe thunderstorm was located near Medford, or 15
miles east of Gloucester City, moving east at 10 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Wind damage to roofs, 
         siding, trees, and power lines is possible.

Locations impacted include...
Evesham, Mount Laurel, Voorhees, Medford, Lindenwold, Tabernacle,
Shamong, Pemberton, Springdale, Atsion, Greentree, Echelon, Marlton,
Leisuretowne, Marlton Lakes, Ramblewood, Ashland, Barclay-Kingston,
Stratford and Somerdale.

This includes the following highways...
 Interstate 295 in New Jersey between mile markers 34 and 36.
 New Jersey Turnpike near exit 4.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 3973 7471 3984 7502 3993 7498 3994 7483
      3999 7467
TIME...MOT...LOC 2037Z 277DEG 9KT 3987 7484 

HAIL...1.00IN
WIND...60MPH
 
$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 19, 1:00 PM EDT	Special Marine Warning	PHI		2 hr
Aug 19, 1:28 PM EDT	Special Weather Statement	PHI	Ocean	47 min
Aug 19, 1:40 PM EDT	Special Marine Warning	PHI		95 min
Aug 19, 1:46 PM EDT	Special Weather Statement	PHI	Cape May	44 min
Aug 19, 1:53 PM EDT	Special Marine Warning	PHI		97 min
Aug 19, 2:48 PM EDT	Areal Flood Advisory	PHI	Ocean	117 min
Aug 19, 2:54 PM EDT	Special Weather Statement	PHI	Sussex	51 min
Aug 19, 3:04 PM EDT	Special Weather Statement	PHI	Ocean	41 min
Aug 19, 3:52 PM EDT	Special Marine Warning	PHI		53 min
Aug 19, 3:56 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	37 min
Aug 19, 3:58 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth	47 min
Aug 19, 4:05 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	40 min
Aug 19, 4:21 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	39 min
Aug 19, 4:28 PM EDT	Special Marine Warning	PHI		97 min
Aug 19, 4:30 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth, Ocean	45 min
Aug 19, 4:45 PM EDT	Special Marine Warning	PHI		60 min
Aug 19, 4:48 PM EDT	Areal Flood Advisory	PHI	Ocean	3 hr
Aug 19, 4:52 PM EDT	Special Weather Statement	PHI	Atlantic	23 min
Aug 19, 4:54 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	40 min
Aug 19, 5:03 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean	57 min
Aug 19, 5:11 PM EDT	Special Marine Warning	PHI		2 hr
Aug 19, 5:29 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Ocean	4 hr
Aug 19, 5:35 PM EDT	Areal Flood Advisory	PHI	Ocean	115 min
Aug 19, 5:40 PM EDT	Special Marine Warning	PHI		86 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2019 Every severe thunderstorm warning in 2019

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.