Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

July 7, 2012Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 7, 2012, 7:55 PM EDT for Atlantic County, New Jersey. It was in force for 65 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 7, 2012, 7:55 PM EDT (23:55 UTC)
Expired
Jul 7, 2012, 9:00 PM EDT
In force
65 min
Issued by
NWS Philadelphia/Mount Holly

County Atlantic County, NJ

The radar

The Philadelphia radar (KDIX), 48 km from the middle of the area, began a volume at 23:57 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, 11.9 hours before the alert went out and 193 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 2012-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 984 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 12:00Z on 2012-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
984 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1395 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
27 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.

463 
WWUS81 KPHI 072355
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
755 PM EDT SAT JUL 7 2012

NJZ016>018-020>027-080100-
ATLANTIC NJ-ATLANTIC COASTAL CAPE MAY NJ-CAMDEN NJ-CAPE MAY NJ-
COASTAL ATLANTIC NJ-COASTAL OCEAN NJ-CUMBERLAND NJ-GLOUCESTER NJ-
OCEAN NJ-SALEM NJ-SOUTHEASTERN BURLINGTON NJ-
755 PM EDT SAT JUL 7 2012

...STRONG THUNDERSTORMS WILL AFFECT ATLANTIC...BURLINGTON...CAMDEN...
CAPE MAY...CUMBERLAND...GLOUCESTER...OCEAN AND SALEM COUNTIES...

AT 753 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 20 MILES SOUTHWEST
OF TOMS RIVER TO 27 MILES NORTHEAST OF VINELAND TO 21 MILES NORTHEAST
OF VINELAND TO 18 MILES EAST OF WILMINGTON...MOVING SOUTHEAST AT 35
MPH. THE THUNDERSTORMS WILL BE NEAR ATSION...WARREN GROVE AROUND 800
PM...BEACH HAVEN WEST...MANAHAWKIN AROUND 815 PM...SHIP BOTTOM...SURF
CITY AROUND 830 PM...DOROTHY...POMONA AROUND 845 PM...MARGATE CITY
AND LONGPORT AROUND 900 PM.

THE THUNDERSTORMS ARE MOVING SOUTHEAST AT 35 MPH. WIND GUSTS TO 50 
MPH ARE POSSIBLE WITH THESE STORMS.

LAT...LON 3955 7423 3950 7429 3945 7430 3938 7440
      3936 7440 3932 7450 3924 7461 3923 7468
      3967 7536 3978 7490 3980 7474 3987 7463
      3969 7413

$$

HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 12:30 PM EDTSpecial Weather StatementPHIMorris, Sussex90 min
Jul 7, 5:57 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Warren63 min
Jul 7, 6:25 PM EDTSevere Thunderstorm WarningPHIHunterdon, Somerset, Warren37 min
Jul 7, 6:54 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth, Ocean, Somerset46 min
Jul 7, 7:03 PM EDTSpecial Weather StatementPHIBurlington, Camden, Gloucester57 min
Jul 7, 7:22 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean53 min
Jul 7, 7:24 PM EDTSpecial Marine WarningPHI96 min
Jul 7, 7:42 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean63 min
Jul 7, 4:49 PM EDTSpecial Weather StatementPHIBerks, Carbon, Lehigh, Northampton86 min
Jul 7, 5:07 PM EDTSevere Thunderstorm WarningPHIBerks, Carbon, Lehigh, Monroe, Northampton53 min
Jul 7, 6:58 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Delaware, Montgomery48 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.