Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

May 29, 20128 counties in New Jersey; New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this special weather statement at May 29, 2012, 8:26 PM EDT for 8 counties in New Jersey; New Castle County, Delaware. It was in force for 94 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 29, 2012, 8:26 PM EDT (00:26 UTC)
Expired
May 29, 2012, 10:00 PM EDT
In force
94 min
Issued by
NWS Philadelphia/Mount Holly

Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 38 km from the middle of the area, began a volume at 00:27 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 00:00Z, 0.4 hours before the alert went out and 201 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 2012-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 883 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 2012-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 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
883 J/kg
Mixed-layer CIN
-156 J/kg
Mixed-layer LCL
994 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
120 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.

932 
WWUS81 KPHI 300026
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
826 PM EDT TUE MAY 29 2012

DEZ001-002-MDZ008-012-NJZ012>022-026-027-300200-
ATLANTIC NJ-CAMDEN NJ-CECIL MD-COASTAL OCEAN NJ-CUMBERLAND NJ-
EASTERN MONMOUTH NJ-GLOUCESTER NJ-KENT DE-KENT MD-MERCER NJ-
MIDDLESEX NJ-NEW CASTLE DE-NORTHWESTERN BURLINGTON NJ-OCEAN NJ-
SALEM NJ-SOUTHEASTERN BURLINGTON NJ-WESTERN MONMOUTH NJ-
826 PM EDT TUE MAY 29 2012

...GUST FRONT FROM STRONG THUNDERSTORMS SHOULD AFFECT ATLANTIC...
BURLINGTON...CAMDEN...CECIL...CUMBERLAND...GLOUCESTER...KENT...
MERCER...MIDDLESEX...MONMOUTH...NEW CASTLE...OCEAN AND SALEM COUNTIES...

AT 822 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THE GUST FRONT FROM STRONG THUNDERSTORMS EXTENDED ALONG A LINE 
EXTENDING FROM 2 MILES NORTH OF PERTH AMBOY TO 13 MILES SOUTH 
OF TRENTON TO 15 MILES SOUTH OF CAMDEN TO 9 MILES WEST OF 
MIDDLETOWN...MOVING SOUTHEAST AT 20 MPH. 

THE GUST FRONT WILL BE NEAR BOHEMIAS MILLS...TWIN RIVERS AROUND 830
PM...TABERNACLE...SIX FLAGS THEME PARK AROUND 845 PM...NORTH
MIDDLETOWN...KEANSBURG AROUND 900 PM...FAIR HAVEN...RUMSON AROUND 915
PM...MONMOUTH BEACH AND SEA BRIGHT AROUND 930 PM.

WIND GUSTS UP TO 40 MPH ARE POSSIBLE WHEN THIS GUST FRONT MOVES
THROUGH. THIS GUST FRONT MIGHT RE-DEVELOP SOME ADDITIONAL SHOWERS
AND THUNDERSTORMS.

LAT...LON 4008 7403 3973 7432 3941 7476 3924 7520
      3950 7556 3919 7538 3909 7560 3942 7602
      3948 7601 3963 7561 3960 7559 3978 7521
      4010 7477 4061 7434 4060 7420 4047 7425
      4043 7400 4047 7402 4043 7397

$$
 
TFG

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 9:35 PM EDTSpecial Weather StatementPHIAtlantic, Cumberland85 min
May 29, 10:53 PM EDTSpecial Marine WarningPHI52 min
May 29, 11:15 PM EDTSpecial Weather StatementPHICape May, Cumberland60 min
May 29, 10:53 PM EDTSpecial Weather StatementPHIKent37 min
May 29, 10:55 PM EDTSpecial Weather StatementPHICaroline, Talbot65 min

Nearby

Special Weather Statements in New Jersey, 2012Special Weather Statements in Delaware, 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.