Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 391, NWS Philadelphia/Mount Holly

September 4, 2019Cumberland County, Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 4, 2019, 8:16 PM EDT for Cumberland County, Salem County, New Jersey. It was in force for 59 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: Sep 4, 2019, 8:16 PM EDT (00:16 UTC)
Expired: Sep 4, 2019, 9:15 PM EDT
In force: 59 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cumberland County, NJ, Salem County, NJ

The radar

The Dover AFB radar (KDOX), 59 km from the middle of the area, began a volume at 00:15 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 00:00Z, 0.3 hours before the alert went out and 157 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: 794 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 1117 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted.

010 
WUUS51 KPHI 050016
SVRPHI
NJC011-033-050115-
/O.NEW.KPHI.SV.W.0391.190905T0016Z-190905T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
816 PM EDT Wed Sep 4 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Cumberland County in southern New Jersey...
  Southern Salem County in southern New Jersey...

* Until 915 PM EDT.

* At 816 PM EDT, a severe thunderstorm was located over Newport
  Meadows, or 9 miles west of Bridgeton, moving east at 20 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Vineland, Millville, Bridgeton, Laurel Lake, Greenwich, Shiloh,
  Newport, Dividing Creek, Hancocks Bridge, Newport Meadows, Fairton,
  Cedarville, Fortesque, South Vineland and Port Norris.

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 3951 7547 3944 7493 3921 7507 3921 7511
      3918 7515 3926 7520 3925 7521 3926 7521
      3930 7525 3929 7529 3933 7532 3935 7539
      3938 7540 3940 7545 3943 7546 3945 7550
TIME...MOT...LOC 0016Z 290DEG 18KT 3942 7541 

HAIL...0.75IN
WIND...60MPH
 
$$

Staarmann

2 follow-up statements

185 
WWUS51 KPHI 050044
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
844 PM EDT Wed Sep 4 2019

NJC011-033-050115-
/O.CON.KPHI.SV.W.0391.000000T0000Z-190905T0115Z/
Cumberland NJ-Salem NJ-
844 PM EDT Wed Sep 4 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR CUMBERLAND AND SOUTHERN SALEM COUNTIES...

At 844 PM EDT, a severe thunderstorm was located over Fairton, or
over Bridgeton, moving east at 20 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Vineland, Millville, Bridgeton, Laurel Lake, Greenwich, Shiloh,
Newport, Dividing Creek, Newport Meadows, Fairton, Cedarville,
Fortesque, South Vineland, Port Norris and Rosenhayn.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3944 7493 3921 7507 3921 7511 3918 7515
      3926 7520 3925 7521 3926 7521 3930 7525
      3929 7529 3933 7532 3935 7539 3938 7540
      3940 7545 3943 7546 3945 7550 3946 7549
      3949 7530
TIME...MOT...LOC 0044Z 287DEG 18KT 3940 7524 

HAIL...0.75IN
WIND...60MPH
 
$$

Staarmann

514 
WWUS51 KPHI 050103
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
903 PM EDT Wed Sep 4 2019

NJC033-050113-
/O.CAN.KPHI.SV.W.0391.000000T0000Z-190905T0115Z/
Salem NJ-
903 PM EDT Wed Sep 4 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN SALEM 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 3922 7506 3918 7515 3921 7517 3924 7517
      3928 7524 3930 7525 3929 7529 3934 7533
      3935 7539 3939 7542 3940 7540 3941 7542
      3944 7494
TIME...MOT...LOC 0103Z 284DEG 20KT 3935 7532 

$$

NJC011-050115-
/O.CON.KPHI.SV.W.0391.000000T0000Z-190905T0115Z/
Cumberland NJ-
903 PM EDT Wed Sep 4 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR CENTRAL CUMBERLAND COUNTY...

At 903 PM EDT, a severe thunderstorm was located over Greenwich, or 7
miles southwest of Bridgeton, moving east at 25 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Vineland, Millville, Bridgeton, Laurel Lake, Greenwich, Newport,
Fairton, Cedarville, Dividing Creek and Port Norris.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3922 7506 3918 7515 3921 7517 3924 7517
      3928 7524 3930 7525 3929 7529 3934 7533
      3935 7539 3939 7542 3940 7540 3941 7542
      3944 7494
TIME...MOT...LOC 0103Z 284DEG 20KT 3935 7532 

HAIL...0.75IN
WIND...60MPH
 
$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 4, 8:03 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester	57 min
Sep 4, 8:04 PM EDT	Special Weather Statement	PHI	Ocean	41 min
Sep 4, 8:10 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	23 min
Sep 4, 8:16 PM EDT	Special Marine Warning	PHI		89 min
Sep 4, 8:19 PM EDT	Special Weather Statement	PHI	Camden, Gloucester	41 min
Sep 4, 8:20 PM EDT	Special Weather Statement	PHI	Ocean	40 min
Sep 4, 8:33 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Gloucester	83 min
Sep 4, 8:40 PM EDT	Special Marine Warning	PHI		95 min
Sep 4, 8:54 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean	81 min
Sep 4, 9:01 PM EDT	Special Marine Warning	PHI		105 min
Sep 4, 9:14 PM EDT	Special Weather Statement	PHI	Cape May, Cumberland	46 min
Sep 4, 9:56 PM EDT	Special Weather Statement	PHI	Cumberland	49 min
Sep 4, 10:12 PM EDT	Special Marine Warning	PHI		63 min
Sep 5, 3:32 AM EDT	Small Craft Advisory	PHI		67 hr
Sep 5, 3:44 AM EDT	Rip Current Statement	PHI	Atlantic, Cape May, Monmouth, Ocean	41 hr
Sep 5, 3:20 PM EDT	Tropical Storm Warning	PHI		29 hr
Sep 5, 3:22 PM EDT	High Surf Advisory	PHI	Atlantic, Cape May, Monmouth, Ocean	42 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.