Alert archive / New Jersey / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 159, NWS Philadelphia/Mount Holly

September 22, 20107 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 22, 2010, 9:37 PM EDT for 7 counties in New Jersey. It was in force for 68 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
Sep 22, 2010, 9:37 PM EDT (01:37 UTC)
Expired
Sep 22, 2010, 10:45 PM EDT
In force
68 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Ocean County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 32 km from the middle of the area, began a volume at 01:38 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
Sep 22, 3:43 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 1.6 hours before the alert went out and 180 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 2010-09-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1052 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 2010-09-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.193958Sfc1 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
1052 J/kg
Mixed-layer CIN
-146 J/kg
Mixed-layer LCL
930 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

252 
WUUS51 KPHI 230137
SVRPHI
NJC001-005-007-011-015-029-033-230245-
/O.NEW.KPHI.SV.W.0159.100923T0137Z-100923T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
937 PM EDT WED SEP 22 2010

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
  NORTHEASTERN CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
  THIS INCLUDES THE CITIES OF...VINELAND...MILLVILLE...
  EASTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHERN OCEAN COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHEASTERN SALEM COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 1045 PM EDT

* AT 934 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A CLUSTER OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING    
  WINDS TO 60 MPH AND HAIL UP TO NICKEL SIZE. THIS STORM WAS LOCATED 
  NEAR WILLIAMSTOWN...OR 16 MILES NORTH OF VINELAND...AND MOVING     
  EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CHESILHURST AROUND 940 PM EDT...
  ATSION AROUND 950 PM EDT...
  WHARTON STATE FOREST AND BATSTO AROUND 1000 PM EDT...
  WADING RIVER AROUND 1010 PM EDT...
  BASS RIVER STATE FOREST AND PENN STATE FOREST AROUND 1015 PM EDT...
  WARREN GROVE AROUND 1020 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO GROUND 
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! 
LIGHTNING IS ONE OF NATURES GREATEST KILLERS. REMEMBER...IF YOU CAN 
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT 
WEDNESDAY EVENING.

&&

LAT...LON 3974 7409 3952 7425 3950 7433 3953 7434
      3953 7440 3949 7438 3947 7429 3940 7435
      3936 7513 3980 7512 3989 7415 3986 7412
      3976 7418 3972 7415 3975 7412 3977 7415
      3977 7412 3989 7407 3989 7406
TIME...MOT...LOC 0135Z 270DEG 35KT 3969 7495

$$

GORSE
1 follow-up statement
156 
WWUS51 KPHI 230204
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1004 PM EDT WED SEP 22 2010

NJC001-005-007-011-015-029-033-230245-
/O.CON.KPHI.SV.W.0159.000000T0000Z-100923T0245Z/
SALEM NJ-CUMBERLAND NJ-CAMDEN NJ-GLOUCESTER NJ-OCEAN NJ-ATLANTIC NJ-
BURLINGTON NJ-
1004 PM EDT WED SEP 22 2010

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM EDT
FOR SOUTHERN BURLINGTON...ATLANTIC...SOUTHERN OCEAN...EASTERN
GLOUCESTER...SOUTHERN CAMDEN...NORTHEASTERN CUMBERLAND AND
SOUTHEASTERN SALEM COUNTIES...

AT 1002 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS 
TO 60 MPH AND HAIL UP TO PENNY SIZE. THIS STORM WAS LOCATED NEAR 
BATSTO...OR 24 MILES NORTHEAST OF VINELAND...MOVING EAST AT 40 MPH.
A SECOND STRONG TO SEVERE THUNDERSTORM WAS LOCATED IN NORTHERN 
CUMBERLAND COUNTY.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  WADING RIVER BY 1010 PM EDT...
  PENN STATE FOREST BY 1015 PM EDT...
  BASS RIVER STATE FOREST BY 1020 PM EDT...
  TUCKERTON BY 1025 PM EDT...
  MANAHAWKIN AND OCEAN ACRES BY 1030 PM EDT...
  BEACH HAVEN WEST...SHIP BOTTOM...BARNEGAT AND NORTH BEACH HAVEN BY
  1035 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO GROUND 
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! 
LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU 
CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT 
WEDNESDAY EVENING FOR DELAWARE, NORTHEASTERN MARYLAND AND NEW 
JERSEY.

&&

LAT...LON 3974 7409 3952 7425 3950 7433 3953 7434
      3953 7440 3949 7438 3947 7429 3940 7435
      3936 7513 3980 7512 3989 7415 3986 7412
      3976 7418 3972 7415 3975 7412 3977 7415
      3977 7412 3989 7407 3989 7406
TIME...MOT...LOC 0202Z 270DEG 35KT 3968 7463

$$

GORSE

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 22, 8:05 PM EDTSpecial Weather StatementPHIMercer55 min
Sep 22, 8:08 PM EDTSpecial Marine WarningPHI112 min
Sep 22, 8:17 PM EDTSevere Thunderstorm WarningPHIBurlington, Hunterdon, Mercer, Monmouth28 min
Sep 22, 8:30 PM EDTSpecial Weather StatementPHISalem45 min
Sep 22, 8:56 PM EDTSpecial Weather StatementPHICamden, Gloucester, Salem64 min
Sep 22, 9:10 PM EDTSevere Thunderstorm WarningPHICumberland, Gloucester, Salem65 min
Sep 22, 9:19 PM EDTSpecial Marine WarningPHI86 min
Sep 22, 10:08 PM EDTSpecial Marine WarningPHI52 min
Sep 22, 10:31 PM EDTSpecial Marine WarningPHI59 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.