Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 196, NWS Philadelphia/Mount Holly

July 2, 20194 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 2, 2019, 8:57 PM EDT for 4 counties in New Jersey. It was in force for 24 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 2, 2019, 8:57 PM EDT (00:57 UTC)
Expired
Jul 2, 2019, 9:21 PM EDT
In force
24 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

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

The radar

The Philadelphia radar (KDIX), 41 km from the middle of the area, began a volume at 00:58 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, 1.0 hours before the alert went out and 199 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 2019-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 416 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 2019-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 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
416 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1413 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

483 
WUUS51 KPHI 030057
SVRPHI
NJC001-005-007-015-030145-
/O.NEW.KPHI.SV.W.0196.190703T0057Z-190703T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
857 PM EDT Tue Jul 2 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central Atlantic County in southern New Jersey...
  Camden County in southern New Jersey...
  Eastern Gloucester County in southern New Jersey...
  Southern Burlington County in southern New Jersey...

* Until 945 PM EDT.

* At 856 PM EDT, severe thunderstorms were located along a line
  extending from Voorhees to near Newfield, moving east at 40 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...
  Evesham, Voorhees, Medford, Pleasantville, Glassboro, Lindenwold,
  Hammonton, Bellmawr, Pitman, Absecon, Clayton, Berlin, Tabernacle,
  Shamong, Buena, Magnolia, Egg Harbor City, Weymouth, Chesilhurst
  and Newfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3957 7441 3955 7444 3954 7441 3946 7444
      3945 7446 3942 7445 3941 7449 3939 7448
      3957 7507 3963 7516 3990 7506 3990 7477
      3985 7443 3977 7439 3965 7439
TIME...MOT...LOC 0056Z 286DEG 33KT 3985 7492 3959 7498 

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

Fitzsimmons
1 follow-up statement
265 
WWUS51 KPHI 030121
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
921 PM EDT Tue Jul 2 2019

NJC001-005-007-015-030131-
/O.CAN.KPHI.SV.W.0196.000000T0000Z-190703T0145Z/
Atlantic NJ-Camden NJ-Gloucester NJ-Burlington NJ-
921 PM EDT Tue Jul 2 2019

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ATLANTIC...CAMDEN...
EASTERN GLOUCESTER AND SOUTHERN BURLINGTON COUNTIES IS CANCELLED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with these thunderstorms.

LAT...LON 3957 7441 3955 7444 3954 7441 3946 7444
      3945 7446 3942 7445 3941 7449 3939 7448
      3957 7507 3963 7516 3990 7506 3990 7477
      3985 7443 3977 7439 3965 7439
TIME...MOT...LOC 0120Z 286DEG 33KT 3979 7464 3953 7470 

$$

Meola

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 8:04 PM EDTSpecial Marine WarningPHI26 min
Jul 2, 8:10 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Salem50 min
Jul 2, 9:11 PM EDTSpecial Weather StatementPHIOcean34 min
Jul 2, 9:43 PM EDTSpecial Marine WarningPHI62 min
Jul 3, 2:22 PM EDTCoastal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 2 more12 hr
Jul 3, 4:42 PM EDTSpecial Weather StatementPHIAtlantic48 min
Jul 3, 5:42 PM EDTSpecial Weather StatementPHIAtlantic33 min
Jul 3, 5:44 PM EDTSpecial Marine WarningPHI61 min
Jul 3, 6:37 PM EDTSpecial Marine WarningPHI38 min
Jul 3, 7:28 PM EDTSpecial Weather StatementPHIGloucester32 min
Jul 3, 7:30 PM EDTAreal Flood AdvisoryPHICamden, Gloucester2 hr

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.