Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

December 18, 2012Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Dec 18, 2012, 3:08 PM EST for Ocean County, New Jersey. It was in force for 52 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
Dec 18, 2012, 3:08 PM EST (20:08 UTC)
Expired
Dec 18, 2012, 4:00 PM EST
In force
52 min
Issued by
NWS Philadelphia/Mount Holly

County Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 18 km from the middle of the area, began a volume at 20:07 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

Brookhaven, NY (KOKX), launched 12:00Z, 8.1 hours before the alert went out and 148 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 12:00Z on 2012-12-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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 12:00Z on 2012-12-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 square meters per square second.1939587897Sfc1 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
4 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
449 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
121 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.

001 
WWUS81 KPHI 182008
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
308 PM EST TUE DEC 18 2012

NJZ013-014-019-020-026-182100-
COASTAL OCEAN NJ-EASTERN MONMOUTH NJ-NORTHWESTERN BURLINGTON NJ-
OCEAN NJ-WESTERN MONMOUTH NJ-
308 PM EST TUE DEC 18 2012

...A DEVELOPING CLUSTER OF SHOWERS AND ISOLATED THUNDERSTORMS WILL 
AFFECT BURLINGTON...MONMOUTH AND OCEAN COUNTIES...

AT 303 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
CLUSTER OF SHOWERS AND ISOLATED THUNDERSTORMS 15 MILES SOUTHEAST OF 
TRENTON...MOVING EAST AT 30 MPH. THE SHOWERS AND THUNDERSTORMS WILL 
BE NEAR MCGUIRE AFB...NEW EGYPT AROUND 315 PM...WOODRUFF...LAKEHURST 
AROUND 330 PM...LEISURE VILLAGE...LEISURE KNOLL AROUND 345 
PM...BRICK TOWNSHIP AND POINT PLEASANT AROUND 400 PM.

WIND GUSTS TO 40 MPH AND PEA SIZED HAIL ARE POSSIBLE WITH ANY 
STRONGER SHOWER OR THUNDERSTORM.

LAT...LON 4002 7406 4002 7407 3998 7406 3997 7407
      3994 7408 3992 7471 4010 7474 4017 7439
      4017 7402

$$

HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 12:30 AM ESTSpecial Weather StatementPHICumberland60 min
Dec 18, 3:51 AM ESTGale WarningPHI30 hr
Dec 18, 1:26 PM ESTSpecial Weather StatementPHIAtlantic64 min
Dec 18, 1:38 PM ESTSpecial Weather StatementPHIHunterdon52 min
Dec 18, 1:40 PM ESTSpecial Weather StatementPHIMercer65 min
Dec 18, 2:00 PM ESTSpecial Weather StatementPHIHunterdon60 min
Dec 18, 2:05 PM ESTSpecial Weather StatementPHIBurlington, Camden, Ocean55 min
Dec 18, 2:44 PM ESTSpecial Weather StatementPHIMonmouth61 min
Dec 18, 2:48 PM ESTSpecial Weather StatementPHIMercer57 min
Dec 18, 3:10 PM ESTSpecial Weather StatementPHIOcean65 min
Dec 18, 3:24 PM ESTSpecial Weather StatementPHIBurlington66 min
Dec 18, 3:41 PM ESTSpecial Weather StatementPHIMonmouth64 min
Dec 18, 3:55 PM ESTSpecial Weather StatementPHIOcean65 min
Dec 18, 1:19 PM ESTSpecial Weather StatementPHIBerks, Chester, Delaware, Montgomery, Philadelphia56 min
Dec 18, 2:15 PM ESTSpecial Weather StatementPHIChester, Montgomery, Philadelphia60 min
Dec 18, 2:23 PM ESTSpecial Weather StatementPHIBucks52 min
Dec 17, 11:31 PM ESTSpecial Weather StatementPHIKent29 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.