Alert archive / New Jersey / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 37, NWS Philadelphia/Mount Holly

May 14, 2010Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 14, 2010, 10:30 PM EDT for Atlantic County, New Jersey. It was in force for 35 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, 10:30 PM EDT (02:30 UTC)
Expired
May 14, 2010, 11:05 PM EDT
In force
35 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

County Atlantic County, NJ

The radar

The Philadelphia radar (KDIX), 67 km from the middle of the area, began a volume at 02:31 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, 2.5 hours before the alert went out and 174 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 2010-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 825 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 2010-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 196 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
825 J/kg
Mixed-layer CIN
-152 J/kg
Mixed-layer LCL
1318 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
196 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

242 
WUUS51 KPHI 150230
SVRPHI
NJC001-150330-
/O.NEW.KPHI.SV.W.0037.100515T0230Z-100515T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1030 PM EDT FRI MAY 14 2010

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 1130 PM EDT

* AT 1027 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 6 MILES
  SOUTHWEST OF MIZPAH...OR 7 MILES SOUTHEAST OF VINELAND...AND MOVING
  EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ESTELL MANOR AND 6 MILES SOUTH OF MAYS LANDING AROUND 1035 PM
  EDT...
  CORBIN CITY AROUND 1040 PM EDT...
  ENGLISH CREEK AROUND 1045 PM EDT...
  SOMERS POINT AROUND 1050 PM EDT...
  NORTHFIELD...6 MILES SOUTH OF PLEASANTVILLE AND 8 MILES SOUTH OF
  ABSECON AROUND 1055 PM EDT...

LAT...LON 3940 7444 3937 7448 3936 7451 3934 7452
      3935 7449 3930 7454 3930 7463 3929 7467
      3931 7485 3932 7487 3942 7486 3948 7495
      3952 7496 3946 7439
TIME...MOT...LOC 0230Z 290DEG 34KT 3940 7485

$$

HAYES
2 follow-up statements
391 
WWUS51 KPHI 150244
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1044 PM EDT FRI MAY 14 2010

NJC001-150330-
/O.CON.KPHI.SV.W.0037.000000T0000Z-100515T0330Z/
ATLANTIC NJ-
1044 PM EDT FRI MAY 14 2010

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT
FOR SOUTHERN ATLANTIC COUNTY...

AT 1040 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR ENGLISH CREEK...OR 15 MILES WEST OF ATLANTIC CITY...
MOVING EAST AT 45 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  LINWOOD...SOMERS POINT AND NORTHFIELD BY 1050 PM EDT...
  PLEASANTVILLE AND 7 MILES SOUTH OF ABSECON BY 1055 PM EDT...

LAT...LON 3940 7444 3937 7448 3936 7451 3934 7452
      3935 7449 3930 7454 3930 7463 3929 7467
      3931 7485 3932 7487 3942 7486 3948 7495
      3952 7496 3946 7439
TIME...MOT...LOC 0245Z 287DEG 37KT 3935 7465

$$

HAYES
058 
WWUS51 KPHI 150305
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1105 PM EDT FRI MAY 14 2010

NJC001-150315-
/O.CAN.KPHI.SV.W.0037.000000T0000Z-100515T0330Z/
ATLANTIC NJ-
1105 PM EDT FRI MAY 14 2010

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN ATLANTIC COUNTY IS
CANCELLED...

LAT...LON 3940 7444 3937 7448 3936 7451 3934 7452
      3935 7449 3930 7454 3930 7463 3929 7467
      3931 7485 3932 7487 3942 7486 3948 7495
      3952 7496 3946 7439
TIME...MOT...LOC 0305Z 287DEG 37KT 3929 7440

$$

HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 8:15 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean46 min
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, 10:35 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.