Alert archive / New Jersey / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 30, NWS Philadelphia/Mount Holly

May 14, 20104 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 14, 2010, 8:29 PM EDT for 4 counties in New Jersey. It was in force for 61 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, 8:29 PM EDT (00:29 UTC)
Expired
May 14, 2010, 9:30 PM EDT
In force
61 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Atlantic County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ

The radar

The Dover AFB radar (KDOX), 73 km from the middle of the area, began a volume at 00:29 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.

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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 0.5 hours before the alert went out and 165 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°0°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.

008 
WUUS51 KPHI 150029
SVRPHI
NJC001-011-015-033-150130-
/O.NEW.KPHI.SV.W.0030.100515T0029Z-100515T0130Z/

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

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  NORTHERN CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
  THIS INCLUDES THE CITIES OF...VINELAND...MILLVILLE...
  SOUTHEASTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHEASTERN SALEM COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 930 PM EDT

* AT 824 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
  SHILOH...OR 18 MILES EAST OF MIDDLETOWN...AND MOVING EAST AT 25
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SHILOH AROUND 835 PM EDT...
  SEABROOK FARMS AND BRIDGETON AROUND 845 PM EDT...
  OLIVET AROUND 850 PM EDT...
  ROSENHAYN AROUND 855 PM EDT...
  SOUTH VINELAND AND NEWFIELD AROUND 905 PM EDT...
  VINELAND AROUND 910 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 3929 7466 3931 7485 3932 7486 3931 7488
      3936 7540 3938 7545 3958 7542 3957 7468
TIME...MOT...LOC 0028Z 271DEG 24KT 3948 7536

$$

HAYES
2 follow-up statements
716 
WWUS51 KPHI 150114
SVSPHI

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

NJC001-011-015-033-150130-
/O.CON.KPHI.SV.W.0030.000000T0000Z-100515T0130Z/
SALEM NJ-CUMBERLAND NJ-GLOUCESTER NJ-ATLANTIC NJ-
914 PM EDT FRI MAY 14 2010

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR WESTERN ATLANTIC...SOUTHEASTERN GLOUCESTER...NORTHERN CUMBERLAND
AND SOUTHEASTERN SALEM COUNTIES...

AT 911 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 VINELAND...MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MIZPAH...MAYS LANDING AND 7 MILES NORTHWEST OF ESTELL MANOR BY 930
  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 3929 7466 3931 7485 3932 7486 3931 7488
      3936 7540 3938 7545 3958 7542 3957 7468
TIME...MOT...LOC 0114Z 271DEG 24KT 3947 7496

$$

HAYES
465 
WWUS51 KPHI 150125
SVSPHI

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

NJC001-011-015-033-150135-
/O.EXP.KPHI.SV.W.0030.000000T0000Z-100515T0130Z/
SALEM NJ-CUMBERLAND NJ-GLOUCESTER NJ-ATLANTIC NJ-
925 PM EDT FRI MAY 14 2010

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN ATLANTIC...
SOUTHEASTERN GLOUCESTER...NORTHERN CUMBERLAND AND SOUTHEASTERN SALEM
COUNTIES WILL EXPIRE AT 930 PM EDT...

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 3929 7466 3931 7485 3932 7486 3931 7488
      3936 7540 3938 7545 3958 7542 3957 7468
TIME...MOT...LOC 0125Z 271DEG 24KT 3947 7486

$$

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, 8:32 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.