Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 196, NWS Philadelphia/Mount Holly

July 24, 2011Atlantic County, Cape May County, Cumberland County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 24, 2011, 5:22 PM EDT for Atlantic County, Cape May County, Cumberland County, New Jersey. It was in force for 53 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
Jul 24, 2011, 5:22 PM EDT (21:22 UTC)
Expired
Jul 24, 2011, 6:15 PM EDT
In force
53 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ

The radar

The Philadelphia radar (KDIX), 75 km from the middle of the area, began a volume at 21:21 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 12:00Z, 9.4 hours before the alert went out and 166 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 12:00Z on 2011-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1438 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 12:00Z on 2011-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
1438 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
1241 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

167 
WUUS51 KPHI 242122
SVRPHI
NJC001-009-011-242215-
/O.NEW.KPHI.SV.W.0196.110724T2122Z-110724T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
522 PM EDT SUN JUL 24 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  NORTHERN CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
  EAST CENTRAL CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF MILLVILLE...

* UNTIL 615 PM EDT

* AT 517 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM MAYS LANDING TO ESTELL MANOR TO CUMBERLAND...OR ALONG A LINE
  EXTENDING FROM 13 MILES NORTHWEST OF ATLANTIC CITY TO 12 MILES
  SOUTHEAST OF VINELAND TO 6 MILES EAST OF MILLVILLE...AND MOVING
  SOUTHEAST AT 15 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  BRICKSBORO AROUND 530 PM EDT...
  ENGLISH CREEK AROUND 545 PM EDT...
  BELLEPLAIN FOREST...NORTHFIELD AND CORBIN CITY AROUND 555 PM EDT...
  ELDORA AND SOMERS POINT AROUND 605 PM EDT...
  MARMORA...BEESLEYS POINT AND MARGATE CITY AROUND 610 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3929 7452 3930 7454 3928 7455 3924 7460
      3912 7470 3910 7470 3906 7474 3940 7511
      3949 7489 3953 7466 3936 7451 3934 7452
      3935 7450 3932 7448
TIME...MOT...LOC 2122Z 317DEG 11KT 3944 7463 3938 7478
          3936 7493

$$

HAYES
3 follow-up statements
717 
WWUS51 KPHI 242140
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
540 PM EDT SUN JUL 24 2011

NJC001-009-011-242215-
/O.CON.KPHI.SV.W.0196.000000T0000Z-110724T2215Z/
CUMBERLAND NJ-CAPE MAY NJ-ATLANTIC NJ-
540 PM EDT SUN JUL 24 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTH CENTRAL ATLANTIC...NORTHERN CAPE MAY AND EAST CENTRAL
CUMBERLAND COUNTIES...

AT 538 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NORTHFIELD TO ESTELL MANOR TO BELLEPLAIN FOREST...OR
ALONG A LINE EXTENDING FROM 8 MILES WEST OF ATLANTIC CITY TO 16 MILES
WEST OF ATLANTIC CITY TO 10 MILES SOUTHEAST OF MILLVILLE...MOVING
SOUTHEAST AT 15 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  ENGLISH CREEK BY 545 PM EDT...
  NORTHFIELD BY 550 PM EDT...
  BELLEPLAIN FOREST AND CORBIN CITY BY 555 PM EDT...
  ELDORA AND LINWOOD BY 600 PM EDT...
  SOMERS POINT BY 605 PM EDT...
  BEESLEYS POINT AND MARGATE CITY BY 610 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3929 7452 3930 7454 3928 7455 3924 7460
      3912 7470 3910 7470 3906 7474 3932 7502
      3942 7497 3946 7483 3951 7464 3936 7451
      3934 7452 3935 7450 3932 7448
TIME...MOT...LOC 2140Z 317DEG 11KT 3940 7458 3934 7473
          3932 7488

$$

HAYES
443 
WWUS51 KPHI 242158
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
558 PM EDT SUN JUL 24 2011

NJC001-009-011-242215-
/O.CON.KPHI.SV.W.0196.000000T0000Z-110724T2215Z/
CUMBERLAND NJ-CAPE MAY NJ-ATLANTIC NJ-
558 PM EDT SUN JUL 24 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTH CENTRAL ATLANTIC...NORTHERN CAPE MAY AND SOUTHEASTERN
CUMBERLAND COUNTIES...

AT 555 PM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM NORTHFIELD TO ENGLISH CREEK TO
BELLEPLAIN FOREST...OR ALONG A LINE EXTENDING FROM ATLANTIC CITY TO
14 MILES WEST OF ATLANTIC CITY TO 14 MILES SOUTHEAST OF MILLVILLE...
MOVING SOUTHEAST AT 15 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  SOMERS POINT BY 605 PM EDT...
  BEESLEYS POINT AND MARGATE CITY BY 610 PM EDT...
  OCEAN CITY...SEAVILLE...DENNISVILLE AND STRATHMERE BY 615 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3929 7452 3930 7454 3928 7455 3924 7460
      3912 7470 3910 7470 3908 7475 3917 7486
      3930 7500 3931 7487 3937 7474 3942 7460
      3936 7451 3934 7452 3935 7450 3932 7448
TIME...MOT...LOC 2159Z 317DEG 11KT 3936 7453 3930 7468
          3928 7483

$$

HAYES
418 
WWUS51 KPHI 242211
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
611 PM EDT SUN JUL 24 2011

NJC001-009-011-242222-
/O.EXP.KPHI.SV.W.0196.000000T0000Z-110724T2215Z/
CUMBERLAND NJ-CAPE MAY NJ-ATLANTIC NJ-
611 PM EDT SUN JUL 24 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL ATLANTIC...
NORTHERN CAPE MAY AND SOUTHEASTERN CUMBERLAND COUNTIES WILL EXPIRE AT
615 PM EDT...

THE STORM THAT PROMPTED THE WARNING HAS WEAKENED AND IS MOVING 
OFFSHORE.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3929 7452 3930 7454 3928 7455 3924 7460
      3912 7470 3910 7470 3908 7475 3917 7486
      3930 7500 3931 7487 3937 7474 3942 7460
      3936 7451 3934 7452 3935 7450 3932 7448
TIME...MOT...LOC 2212Z 317DEG 11KT 3933 7450 3927 7465
          3925 7480

$$

HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 3:48 AM EDTHeat AdvisoryPHIAtlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean and 1 more16 hr
Jul 24, 1:37 PM EDTSpecial Marine WarningPHI53 min
Jul 24, 1:40 PM EDTSpecial Weather StatementPHICape May65 min
Jul 24, 1:49 PM EDTSpecial Marine WarningPHI56 min
Jul 24, 2:02 PM EDTSpecial Weather StatementPHICape May58 min
Jul 24, 2:12 PM EDTSpecial Marine WarningPHI63 min
Jul 24, 2:41 PM EDTSpecial Weather StatementPHICape May64 min
Jul 24, 3:01 PM EDTSpecial Weather StatementPHIMorris59 min
Jul 24, 3:12 PM EDTSpecial Marine WarningPHI63 min
Jul 24, 3:14 PM EDTSpecial Marine WarningPHI61 min
Jul 24, 3:17 PM EDTSpecial Marine WarningPHI58 min
Jul 24, 3:17 PM EDTSpecial Weather StatementPHIBurlington, Camden, Gloucester58 min
Jul 24, 3:30 PM EDTSpecial Weather StatementPHIBurlington, Camden, Ocean60 min
Jul 24, 3:36 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean54 min
Jul 24, 3:59 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean61 min
Jul 24, 4:13 PM EDTSpecial Weather StatementPHIAtlantic, Gloucester, Salem62 min
Jul 24, 4:14 PM EDTSpecial Weather StatementPHICape May61 min
Jul 24, 4:32 PM EDTSpecial Weather StatementPHIMorris, Sussex58 min
Jul 24, 4:41 PM EDTSevere Thunderstorm WarningPHIAtlantic64 min
Jul 24, 4:50 PM EDTSpecial Marine WarningPHI85 min
Jul 24, 4:59 PM EDTSpecial Marine WarningPHI61 min
Jul 24, 5:07 PM EDTSpecial Weather StatementPHIOcean53 min
Jul 24, 5:08 PM EDTSpecial Weather StatementPHIAtlantic67 min
Jul 24, 5:10 PM EDTSpecial Weather StatementPHICamden, Cumberland, Gloucester, Salem65 min
Jul 24, 5:27 PM EDTSpecial Weather StatementPHIMercer63 min
Jul 24, 5:35 PM EDTSpecial Weather StatementPHIMercer55 min
Jul 24, 5:56 PM EDTSpecial Weather StatementPHIWarren64 min
Jul 24, 6:02 PM EDTAreal Flood AdvisoryPHIAtlantic, Cape May3 hr
Jul 24, 6:19 PM EDTSpecial Weather StatementPHICape May, Cumberland56 min
Jul 24, 7:28 PM EDTSpecial Weather StatementPHIBurlington, Camden62 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2011Every severe thunderstorm warning in 2011

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.