Alert archive / New Jersey / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 29, NWS Philadelphia/Mount Holly

May 14, 2010Atlantic County, Burlington County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 14, 2010, 8:15 PM EDT for Atlantic County, Burlington County, Ocean County, New Jersey. It was in force for 46 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
May 14, 2010, 8:15 PM EDT (00:15 UTC)
Expired
May 14, 2010, 9:01 PM EDT
In force
46 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Atlantic County, NJ, Burlington County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 29 km from the middle of the area, began a volume at 00:16 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 watch it was issued in

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

IssuedProductOfficeLasted
May 14, 3:43 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 0.3 hours before the alert went out and 183 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 00:00Z on 2010-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 512 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 00:00Z on 2010-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 259 square meters per square second.1939587897Sfc1 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
512 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
966 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
259 m²/s²
0-3 km storm-relative helicity
264 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

634 
WUUS51 KPHI 150015
SVRPHI
NJC001-005-029-150115-
/O.NEW.KPHI.SV.W.0029.100515T0015Z-100515T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
815 PM EDT FRI MAY 14 2010

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHEASTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHERN OCEAN COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 915 PM EDT

* AT 812 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  ATSION...OR 24 MILES NORTHEAST OF VINELAND...AND MOVING EAST AT 25
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WHARTON STATE FOREST AROUND 820 PM EDT...
  PENN STATE FOREST AROUND 840 PM EDT...
  WARREN GROVE AROUND 850 PM EDT...
  BROOKVILLE AROUND 900 PM EDT...
  BARNEGAT AROUND 910 PM EDT...
  SURF CITY AROUND 915 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3959 7419 3960 7424 3962 7421 3963 7423
      3960 7426 3964 7482 3967 7481 3972 7475
      3976 7479 3985 7477 3984 7416 3975 7418
      3974 7415 3970 7415 3968 7417 3965 7415
TIME...MOT...LOC 0015Z 271DEG 24KT 3973 7468

$$

HAYES
1 follow-up statement
566 
WWUS51 KPHI 150101
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
901 PM EDT FRI MAY 14 2010

NJC001-005-029-150111-
/O.CAN.KPHI.SV.W.0029.000000T0000Z-100515T0115Z/
OCEAN NJ-ATLANTIC NJ-BURLINGTON NJ-
901 PM EDT FRI MAY 14 2010

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BURLINGTON...
NORTH CENTRAL ATLANTIC AND SOUTHERN OCEAN COUNTIES IS CANCELLED...

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

LAT...LON 3959 7419 3960 7424 3962 7421 3963 7423
      3960 7426 3964 7482 3967 7481 3972 7475
      3976 7479 3985 7477 3984 7416 3975 7418
      3974 7415 3970 7415 3968 7417 3965 7415
TIME...MOT...LOC 0101Z 271DEG 24KT 3972 7428

$$

HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 8:29 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cumberland, Gloucester, Salem61 min
May 14, 8:32 PM EDTSpecial Marine WarningPHI88 min
May 14, 8:36 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean40 min
May 14, 8:44 PM EDTSpecial Weather StatementPHIBurlington61 min
May 14, 9:17 PM EDTSpecial Weather StatementPHIMonmouth58 min
May 14, 9:31 PM EDTSpecial Weather StatementPHIAtlantic59 min
May 14, 9:36 PM EDTSpecial Weather StatementPHICape May54 min
May 14, 9:47 PM EDTSevere Thunderstorm WarningPHICumberland30 min
May 14, 9:49 PM EDTSpecial Marine WarningPHI86 min
May 14, 9:57 PM EDTSevere Thunderstorm WarningPHISalem48 min
May 14, 10:09 PM EDTSevere Thunderstorm WarningPHICape May37 min
May 14, 10:19 PM EDTSpecial Weather StatementPHIAtlantic56 min
May 14, 10:30 PM EDTSevere Thunderstorm WarningPHIAtlantic35 min
May 14, 10:35 PM EDTSpecial Weather StatementPHICamden, Gloucester55 min
May 14, 10:41 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester49 min
May 14, 10:59 PM EDTSpecial Weather StatementPHIAtlantic61 min
May 14, 11:30 PM EDTSpecial Weather StatementPHIAtlantic45 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2010Every severe thunderstorm warning in 2010

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.