Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 206, NWS Philadelphia/Mount Holly

July 6, 2019Camden County, Gloucester County, Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 6, 2019, 4:39 PM EDT for Camden County, Gloucester County, Salem County, New Jersey. It was in force for 32 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
Jul 6, 2019, 4:39 PM EDT (20:39 UTC)
Expired
Jul 6, 2019, 5:11 PM EDT
In force
32 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Camden County, NJ, Gloucester County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 75 km from the middle of the area, began a volume at 20:40 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.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 8.7 hours before the alert went out and 196 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 12:00Z on 2019-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 858 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 12:00Z on 2019-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.1939Sfc1 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
858 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
755 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

370 
WUUS51 KPHI 062039
SVRPHI
NJC007-015-033-062130-
/O.NEW.KPHI.SV.W.0206.190706T2039Z-190706T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
439 PM EDT Sat Jul 6 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northeastern Salem County in southern New Jersey...
  West central Camden County in southern New Jersey...
  Central Gloucester County in southern New Jersey...

* Until 530 PM EDT.

* At 438 PM EDT, a severe thunderstorm was located over Mullica Hill,
  or 14 miles east of Wilmington, moving southeast at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Glassboro, Pitman, Clayton, Woodstown, Swedesboro, Elmer,
  Franklinville, Olivet, Mullica Hill, Gibbstown, Turnersville,
  Williamstown, Wenonah and Oak Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 thunderstorm is capable of producing all types of severe 
weather including extremely large hail, destructive straight line 
winds and tornadoes. Move quickly to a safe shelter such as an 
interior room, a bathroom, closet or basement.

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

&&

LAT...LON 3968 7538 3983 7528 3975 7495 3951 7514
TIME...MOT...LOC 2038Z 293DEG 14KT 3971 7527 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

MPS
2 follow-up statements
500 
WWUS51 KPHI 062059
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
459 PM EDT Sat Jul 6 2019

NJC007-062108-
/O.CAN.KPHI.SV.W.0206.000000T0000Z-190706T2130Z/
Camden NJ-
459 PM EDT Sat Jul 6 2019

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL CAMDEN COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3967 7536 3979 7523 3969 7500 3951 7514
TIME...MOT...LOC 2058Z 308DEG 9KT 3968 7524 

$$

NJC015-033-062130-
/O.CON.KPHI.SV.W.0206.000000T0000Z-190706T2130Z/
Salem NJ-Gloucester NJ-
459 PM EDT Sat Jul 6 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR EAST CENTRAL SALEM AND CENTRAL GLOUCESTER COUNTIES...

At 458 PM EDT, a severe thunderstorm was located near Mullica Hill,
or 15 miles east of Wilmington, moving southeast at 10 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Glassboro, Pitman, Clayton, Woodstown, Elmer, Franklinville, Olivet,
Mullica Hill and Williamstown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter, such as an interior room,
a bathroom or closet or basement.

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

&&

LAT...LON 3967 7536 3979 7523 3969 7500 3951 7514
TIME...MOT...LOC 2058Z 308DEG 9KT 3968 7524 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

MPS
013 
WWUS51 KPHI 062111
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
511 PM EDT Sat Jul 6 2019

NJC015-033-062121-
/O.CAN.KPHI.SV.W.0206.000000T0000Z-190706T2130Z/
Salem NJ-Gloucester NJ-
511 PM EDT Sat Jul 6 2019

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SALEM AND CENTRAL
GLOUCESTER COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However, heavy rain is 
still possible with this thunderstorm.

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

LAT...LON 3967 7536 3979 7523 3969 7500 3951 7514
TIME...MOT...LOC 2107Z 293DEG 14KT 3966 7518 

$$

MPS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 1:28 PM EDTAreal Flood AdvisoryPHIOcean3 hr
Jul 6, 1:46 PM EDTFlash Flood WarningPHIOcean4 hr
Jul 6, 1:52 PM EDTSpecial Marine WarningPHI53 min
Jul 6, 2:05 PM EDTSpecial Weather StatementPHIBurlington25 min
Jul 6, 2:06 PM EDTSpecial Weather StatementPHIMonmouth24 min
Jul 6, 2:07 PM EDTSpecial Marine WarningPHI53 min
Jul 6, 2:10 PM EDTSpecial Weather StatementPHIOcean35 min
Jul 6, 2:13 PM EDTSpecial Weather StatementPHICumberland47 min
Jul 6, 2:17 PM EDTAreal Flood AdvisoryPHIBurlington, Camden2 hr
Jul 6, 2:22 PM EDTSpecial Marine WarningPHI53 min
Jul 6, 2:25 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Ocean28 min
Jul 6, 2:26 PM EDTSevere Thunderstorm WarningPHIMonmouth34 min
Jul 6, 2:28 PM EDTSevere Thunderstorm WarningPHIAtlantic, Ocean47 min
Jul 6, 2:29 PM EDTSpecial Marine WarningPHI61 min
Jul 6, 2:40 PM EDTSpecial Marine WarningPHI31 min
Jul 6, 2:58 PM EDTSpecial Marine WarningPHI62 min
Jul 6, 3:04 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cape May, Ocean26 min
Jul 6, 3:22 PM EDTSevere Thunderstorm WarningPHIAtlantic, Ocean37 min
Jul 6, 3:43 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren47 min
Jul 6, 3:55 PM EDTTornado WarningPHICamden, Gloucester, Salem50 min
Jul 6, 4:08 PM EDTTornado WarningPHIHunterdon25 min
Jul 6, 4:28 PM EDTSevere Thunderstorm WarningPHIHunterdon, Somerset21 min
Jul 6, 4:41 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren49 min
Jul 6, 4:45 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Gloucester4 hr
Jul 6, 4:49 PM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset, Sussex, Warren4 hr
Jul 6, 4:54 PM EDTAreal Flood AdvisoryPHIBurlington, Hunterdon, Mercer, Somerset, Warren4 hr
Jul 6, 5:04 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem17 min
Jul 6, 5:25 PM EDTSevere Thunderstorm WarningPHIMercer50 min
Jul 6, 5:32 PM EDTFlash Flood WarningPHIWarren4 hr
Jul 6, 5:44 PM EDTAreal Flood AdvisoryPHISussex4 hr
Jul 6, 5:49 PM EDTAreal Flood AdvisoryPHISalem4 hr
Jul 6, 6:13 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer15 min
Jul 6, 6:22 PM EDTSevere Thunderstorm WarningPHISussex, Warren38 min
Jul 6, 6:42 PM EDTSevere Thunderstorm WarningPHIGloucester30 min
Jul 6, 6:53 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Sussex, Warren67 min
Jul 6, 7:33 PM EDTSevere Thunderstorm WarningPHIAtlantic, Camden, Cumberland, Gloucester, Salem42 min
Jul 6, 7:45 PM EDTSpecial Weather StatementPHIHunterdon, Somerset45 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2019Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.