Alert archive / Pennsylvania / Special Weather Statements in 2018

Special Weather Statement, NWS Philadelphia/Mount Holly

June 5, 2018Burlington County, New Jersey; Delaware County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 5, 2018, 7:13 PM EDT for Burlington County, New Jersey; Delaware County, Philadelphia County, Pennsylvania. It was in force for 47 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
Jun 5, 2018, 7:13 PM EDT (23:13 UTC)
Expired
Jun 5, 2018, 8:00 PM EDT
In force
47 min
Issued by
NWS Philadelphia/Mount Holly

Counties Burlington County, NJ, Delaware County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 56 km from the middle of the area, began a volume at 23:14 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

Brookhaven, NY (KOKX), launched 12:00Z, 11.2 hours before the alert went out and 211 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, Brookhaven, NY at 12:00Z on 2018-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Brookhaven, NY at 12:00Z on 2018-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1324 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

714 
WWUS81 KPHI 052313
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
713 PM EDT TUE JUN 5 2018

NJZ018-019-027-PAZ070-071-102>104-106-060000-
Northwestern Burlington-Camden-Southeastern Burlington-Lower
Bucks-Eastern Montgomery-Western Montgomery-Delaware-Eastern
Chester-Philadelphia-
713 PM EDT TUE JUN 5 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL CAMDEN...
BURLINGTON...SOUTHEASTERN MONTGOMERY...SOUTH CENTRAL BUCKS...EAST
CENTRAL CHESTER...PHILADELPHIA AND CENTRAL DELAWARE COUNTIES...

At 713 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Ben Franklin Bridge to West
Norriton. Movement was east at 30 mph.

Winds up to 45 mph, pea size hail and brief heavy downpours are 
possible with these storms.

These storms will be near...
  Camden, Gloucester City, Bellmawr, Westville, National Park, 
  Brooklawn, Audubon Park, Ben Franklin Bridge, Center City and 
  Kensington around 720 PM EDT.
  Golden Triangle around 725 PM EDT.
  Magnolia, Ashland, Erlton-Ellisburg and Cherry Hill Mall around 
  730 PM EDT.
  Cherry Hill, Lindenwold, Springdale, Greentree, Barclay-Kingston, 
  Echelon, Germantown, Ramblewood and Roxborough around 735 PM EDT.
  Mount Laurel, Voorhees, Jenkintown, Abington, Marlton and Willow 
  Grove around 740 PM EDT.
  Evesham, Rockledge, Bryn Athyn and Marlton Lakes around 745 PM 
  EDT.
  Lumberton, Tacony and Wissinoming around 750 PM EDT.
  Philadelphia, Medford, Palmyra, Holmesburg and Northeast 
  Philadelphia around 755 PM EDT.

Occasional cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe 
shelter inside a building or vehicle.

LAT...LON 3976 7449 3973 7459 3985 7509 3989 7514
      3987 7520 3993 7548 4008 7550 4010 7546
      4013 7546 4013 7549 4018 7549 4015 7506
      4009 7457 3991 7449
TIME...MOT...LOC 2313Z 282DEG 25KT 3993 7517 4012 7538 

$$

JRK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 5:27 PM EDTSpecial Marine WarningPHI93 min
Jun 5, 6:47 PM EDTSpecial Weather StatementPHIMiddlesex, Somerset43 min
Jun 5, 6:53 PM EDTSpecial Marine WarningPHI78 min
Jun 5, 7:27 PM EDTSpecial Marine WarningPHI2 hr
Jun 5, 7:28 PM EDTSpecial Weather StatementPHIBurlington, Middlesex, Monmouth, Ocean47 min
Jun 5, 7:36 PM EDTSpecial Marine WarningPHI114 min
Jun 5, 7:41 PM EDTSpecial Weather StatementPHICape May34 min
Jun 5, 5:36 PM EDTSpecial Weather StatementPHIMontgomery24 min
Jun 5, 6:02 PM EDTSpecial Weather StatementPHIBerks, Chester43 min
Jun 5, 6:44 PM EDTSpecial Weather StatementPHIMontgomery31 min
Jun 5, 6:24 PM EDTSpecial Weather StatementPHIKent51 min
Jun 5, 6:50 PM EDTSevere Thunderstorm WarningPHIKent40 min

Nearby

Special Weather Statements in Pennsylvania, 2018Special Weather Statements in New Jersey, 2018Every special weather statement 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.