Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 38, NWS Philadelphia/Mount Holly

June 24, 2013Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 24, 2013, 4:28 PM EDT for Ocean County, New Jersey. It was in force for 62 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 24, 2013, 4:28 PM EDT (20:28 UTC)
Expired
Jun 24, 2013, 5:30 PM EDT
In force
62 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

County Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 27 km from the middle of the area, began a volume at 20:29 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.

What was reported inside it

TimeReportWhereRemark
Jun 24, 4:45 PM EDTMARINE TSTM WIND 59Barnegat, NJTIME APPROXIMATE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 24, 2:44 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.5 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2013-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 474 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, Brookhaven, NY at 12:00Z on 2013-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
474 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
1185 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

391 
WUUS51 KPHI 242028
SVRPHI
NJC029-242130-
/O.NEW.KPHI.SV.W.0038.130624T2028Z-130624T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
428 PM EDT MON JUN 24 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL OCEAN COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 530 PM EDT

* AT 425 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR BEACHWOOD...MOVING EAST AT
  35 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SEASIDE HEIGHTS AND MANTOLOKING AROUND 440 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM...AND
THE STORM WILL AFFECT THE BEACHES. FOR YOUR SAFETY...IMMEDIATELY MOVE
OFF THE BEACH AND SEEK SHELTER INDOORS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
MONDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY
AND EASTERN PENNSYLVANIA.

&&

LAT...LON 3989 7408 3977 7408 3972 7412 3972 7415
      3977 7415 3981 7410 3992 7410 3990 7412
      3986 7412 3978 7418 3972 7415 3971 7427
      3996 7428 4008 7410 4008 7403
TIME...MOT...LOC 2028Z 270DEG 35KT 3991 7416

$$

FORECASTER: JJM
1 follow-up statement
965 
WWUS51 KPHI 242115
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
515 PM EDT MON JUN 24 2013

NJC029-242124-
/O.CAN.KPHI.SV.W.0038.000000T0000Z-130624T2130Z/
OCEAN NJ-
515 PM EDT MON JUN 24 2013

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL OCEAN COUNTY IS
CANCELLED...

THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS MOVED OUT
TO SEA. WHILE LIGHTNING IS STILL POSSIBLE OVER LONG BEACH ISLAND 
UNTIL 530 PM...THE THREAT FOR DAMAGING WIND AND LARGE HAIL HAS NOW 
PASSED. THE SEVERE THUNDERSTORM WARNING HAS THEREFORE BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
MONDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY
AND EASTERN PENNSYLVANIA.

LAT...LON 3989 7408 3977 7408 3972 7412 3972 7415
      3977 7415 3981 7410 3992 7410 3990 7412
      3986 7412 3978 7418 3972 7415 3971 7427
      3996 7428 4008 7410 4008 7403
TIME...MOT...LOC 2114Z 270DEG 35KT 3991 7358

$$

FORECASTER: JJM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 2:32 PM EDTSpecial Weather StatementPHIBurlington, Camden, Gloucester, Ocean58 min
Jun 24, 3:23 PM EDTSpecial Weather StatementPHIBurlington, Camden, Gloucester, Monmouth52 min
Jun 24, 3:25 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 2 more3 hr
Jun 24, 3:40 PM EDTSpecial Weather StatementPHIHunterdon, Warren50 min
Jun 24, 3:42 PM EDTFlash Flood WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean3 hr
Jun 24, 4:03 PM EDTSpecial Marine WarningPHI117 min
Jun 24, 4:16 PM EDTSpecial Weather StatementPHIOcean59 min
Jun 24, 5:18 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren42 min
Jun 24, 5:59 PM EDTSpecial Weather StatementPHIHunterdon31 min
Jun 24, 6:29 PM EDTSpecial Weather StatementPHISussex31 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2013Every severe thunderstorm warning in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.