Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

July 26, 2012Camden County, Gloucester County, Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 26, 2012, 10:59 PM EDT for Camden County, Gloucester County, Salem County, New Jersey. It was in force for 91 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 26, 2012, 10:59 PM EDT (02:59 UTC)
Expired
Jul 27, 2012, 12:30 AM EDT
In force
91 min
Issued by
NWS Philadelphia/Mount Holly

Counties Camden County, NJ, Gloucester County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 70 km from the middle of the area, began a volume at 02:59 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, 3.0 hours before the alert went out and 198 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 2012-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3064 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 2012-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
3064 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
1175 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
116 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.

171 
WWUS81 KPHI 270259
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1059 PM EDT THU JUL 26 2012

NJZ016>018-270430-
CAMDEN NJ-GLOUCESTER NJ-SALEM NJ-
1059 PM EDT THU JUL 26 2012

...SCATTERED THUNDERSTORMS WITH HEAVY RAIN AFFECTING SOUTHWESTERN
NEW JERSEY...

SCATTERED THUNDERSTORMS WITH HEAVY RAIN WILL CONTINUE TO DRIFT INTO 
SOUTHWESTERN NEW JERSEY FROM THE SOUTHWEST UNTIL SHORTLY AFTER
MIDNIGHT.

ISOLATED AREAS OF HEAVY RAIN ARE POSSIBLE AND IT MAY CAUSE PONDING 
OF WATER ON ROADWAYS AND FLOODING IN AREAS OF POOR DRAINAGE.

THERE MAY BE WIND GUSTS TO 30 MPH.

DANGEROUS CLOUD TO GROUND LIGHTNING IS POSSIBLE. DO NOT SEEK SHELTER 
UNDER TREES WHEN LIGHTNING THREATENS. MOVE INDOORS WHEN A 
THUNDERSTORM APPROACHES.

LAT...LON 3951 7499 3956 7506 3946 7508 3956 7524
      3945 7541 3938 7542 3947 7555 3957 7552
      3964 7556 3976 7546 3985 7533 3988 7515
      3996 7513 3999 7506 3998 7501 3995 7502
      3989 7493 3979 7491 3979 7481 3973 7474

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 11:25 PM EDTAreal Flood AdvisoryPHIGloucester, Salem107 min
Jul 26, 11:44 PM EDTAreal Flood AdvisoryPHIAtlantic, Cumberland, Gloucester, Salem2 hr
Jul 26, 11:55 PM EDTSpecial Weather StatementPHIOcean65 min
Jul 27, 12:02 AM EDTSpecial Weather StatementPHIOcean58 min
Jul 27, 12:35 AM EDTAreal Flood AdvisoryPHIBurlington, Ocean117 min
Jul 26, 10:19 PM EDTAreal Flood AdvisoryPHIChester3 hr
Jul 27, 6:02 PM EDTSpecial Weather StatementPHICarbon58 min
Jul 27, 7:00 PM EDTSpecial Weather StatementPHICarbon60 min
Jul 26, 10:01 PM EDTSpecial Weather StatementPHICecil59 min
Jul 26, 10:24 PM EDTSpecial Weather StatementPHIKent, Queen Anne's96 min

Nearby

Special Weather Statements in New Jersey, 2012Every special weather statement in 2012

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.