Alert archive / New Jersey / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 65, NWS Philadelphia/Mount Holly

August 3, 2018Atlantic County, Cape May County, Cumberland County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 3, 2018, 12:52 PM EDT for Atlantic County, Cape May County, Cumberland County, New Jersey. It was in force for 21 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: Aug 3, 2018, 12:52 PM EDT (16:52 UTC)
Expired: Aug 3, 2018, 1:13 PM EDT
In force: 21 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ

The radar

The Dover AFB radar (KDOX), 76 km from the middle of the area, began a volume at 16:55 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, 4.9 hours before the alert went out and 164 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: 1395 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 591 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 5 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

037 
WUUS51 KPHI 031652
SVRPHI
NJC001-009-011-031730-
/O.NEW.KPHI.SV.W.0065.180803T1652Z-180803T1730Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1252 PM EDT FRI AUG 3 2018

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Atlantic County in southern New Jersey...
  Southeastern Cumberland County in southern New Jersey...
  Northwestern Cape May County in southern New Jersey...

* Until 130 PM EDT.

* At 1251 PM EDT, a severe thunderstorm was located over Belleplain
  Forest, or 10 miles southeast of Millville, moving northeast at 40
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Vineland, Millville, Cumberland, Hammonton, Egg Harbor City, Laurel
  Lake, Weymouth, Woodbine, Estell Manor, Port Republic, Corbin City,
  Leesburg, Elwood-Magnolia, Dorothy, Bricksboro, Eldora,
  Mauricetown, Belleplain Forest, Pomona and Mays Landing.

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 3915 7488 3927 7506 3932 7503 3933 7502
      3968 7478 3950 7445
TIME...MOT...LOC 1651Z 215DEG 33KT 3929 7492 

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

po

1 follow-up statement

948 
WWUS51 KPHI 031713
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
113 PM EDT FRI AUG 3 2018

NJC001-009-011-031721-
/O.CAN.KPHI.SV.W.0065.000000T0000Z-180803T1730Z/
Atlantic NJ-Cumberland NJ-Cape May NJ-
113 PM EDT FRI AUG 3 2018

...THE SEVERE THUNDERSTORM WARNING FOR ATLANTIC...SOUTHEASTERN
CUMBERLAND AND NORTHWESTERN CAPE MAY 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, other scattered 
thunderstorms with heavy rain are still possible for the next 
few hours. Go indoors if threatening weather approaches. 

LAT...LON 3915 7488 3927 7506 3932 7503 3933 7502
      3968 7478 3950 7445
TIME...MOT...LOC 1709Z 215DEG 33KT 3945 7478 

$$

po

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 9:35 PM EDT	Special Weather Statement	PHI	Somerset	25 min
Aug 2, 10:05 PM EDT	Special Weather Statement	PHI	Morris, Somerset	55 min
Aug 3, 11:47 AM EDT	Special Marine Warning	PHI		88 min
Aug 3, 12:17 PM EDT	Special Weather Statement	PHI	Cape May	43 min
Aug 3, 12:37 PM EDT	Special Weather Statement	PHI	Camden, Gloucester	38 min
Aug 3, 1:01 PM EDT	Special Weather Statement	PHI	Hunterdon	44 min
Aug 3, 1:14 PM EDT	Special Weather Statement	PHI	Mercer	46 min
Aug 3, 1:27 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	48 min
Aug 3, 1:42 PM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Sussex, Warren	63 min
Aug 3, 2:00 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Somerset	30 min
Aug 3, 2:37 PM EDT	Special Weather Statement	PHI	Morris, Sussex	38 min
Aug 3, 2:54 PM EDT	Special Marine Warning	PHI		20 min
Aug 3, 3:33 PM EDT	Special Weather Statement	PHI	Camden, Gloucester, Salem	57 min
Aug 3, 4:31 PM EDT	Special Weather Statement	PHI	Salem	59 min
Aug 3, 4:45 PM EDT	Special Weather Statement	PHI	Warren	60 min
Aug 3, 5:25 PM EDT	Special Weather Statement	PHI	Monmouth, Ocean	50 min
Aug 3, 5:27 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Gloucester	63 min
Aug 3, 6:52 PM EDT	Special Weather Statement	PHI	Sussex, Warren	113 min
Aug 3, 7:56 PM EDT	Areal Flood Advisory	PHI	Sussex, Warren	4 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2018 Every severe thunderstorm warning in 2018

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.