Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

July 5, 2012Burlington County, Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 5, 2012, 12:08 AM EDT for Burlington County, Mercer County, New Jersey. It was in force for 37 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 5, 2012, 12:08 AM EDT (04:08 UTC)
Expired
Jul 5, 2012, 12:45 AM EDT
In force
37 min
Issued by
NWS Philadelphia/Mount Holly

Counties Burlington County, NJ, Mercer County, NJ

The radar

The Philadelphia radar (KDIX), 22 km from the middle of the area, began a volume at 04:12 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.

What was reported inside it

TimeReportWhereRemark
Jul 5, 12:20 AM EDTTSTM WND DMGUpper Freehold Twp, NJTREE DOWN ONTO A HOUSE ALONG WYGANT ROAD IN UPPER FREEHOLD TWP... CAUSING SOME STRUCTURAL DAMAGE. SEVERAL OTHER LARGE TREES DOWN AND PEA SIZE HAIL ALSO REPORTED.
Jul 5, 12:20 AM EDTTSTM WND GST 51Upper Freehold Twp, NJA 51 MPH THUNDERSTORM WIND GUST WAS REPORTED IN UPPER FREEHOLD TWP.
Jul 5, 12:20 AM EDTHAIL 0.75Florence, NJPENNY SIZE HAIL REPORTED IN FLORENCE ALONG WITH A WIND GUST TO 48 MPH.
Jul 5, 12:25 AM EDTTSTM WND GST 50Willingboro, NJA THUNDERSTORM WIND GUST WAS ESTIMATED TO BE 40 TO 50 MPH.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 4.1 hours before the alert went out and 174 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 2012-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1802 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 2012-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 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
1802 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1100 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
189 m²/s²
Significant tornado parameter
0.7
Supercell composite
3.9

Open this sounding in Storm Lab

The text

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

806 
WWUS81 KPHI 050408
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1208 AM EDT THU JUL 5 2012

NJZ013-015-019-020-027-PAZ068-069-071-050445-
BUCKS PA-MERCER NJ-MONTGOMERY PA-NORTHWESTERN BURLINGTON NJ-OCEAN NJ-
PHILADELPHIA PA-SOUTHEASTERN BURLINGTON NJ-WESTERN MONMOUTH NJ-
1208 AM EDT THU JUL 5 2012

...STRONG THUNDERSTORMS WILL AFFECT PORTIONS OF 
BUCKS...BURLINGTON...MERCER...MONMOUTH...MONTGOMERY...OCEAN AND 
PHILADELPHIA COUNTIES...

AT 1205 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
STRONG THUNDERSTORMS FROM MONTGOMERY COUNTY TO MERCER 
COUNTY...MOVING SOUTHEAST AT 30 MPH.

DOWNPOURS WILL OCCUR WITH THESE STORMS...AND WILL CAUSE WATER TO 
POND ON ROADS FOR A TIME. WIND GUSTS UP TO 45 MPH AND SMALL HAIL ARE 
POSSIBLE.

CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. DO 
NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS 
WHEN A THUNDERSTORM APPROACHES.

LAT...LON 4000 7425 3979 7482 4016 7517 4034 7465

$$

FORECASTER: GORSE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 10:23 PM EDTSpecial Weather StatementPHIMercer37 min
Jul 4, 10:52 PM EDTSpecial Weather StatementPHIOcean38 min
Jul 4, 11:01 PM EDTSevere Thunderstorm WarningPHIOcean29 min
Jul 4, 11:14 PM EDTSpecial Weather StatementPHIMercer46 min
Jul 5, 12:34 AM EDTSpecial Weather StatementPHIBurlington, Ocean41 min
Jul 5, 12:35 AM EDTSpecial Weather StatementPHIBurlington, Ocean40 min
Jul 5, 1:00 AM EDTSpecial Marine WarningPHI51 min
Jul 5, 1:15 AM EDTSpecial Weather StatementPHIAtlantic, Ocean60 min
Jul 5, 1:39 AM EDTSpecial Weather StatementPHICape May, Cumberland66 min
Jul 5, 4:28 AM EDTExcessive Heat WatchPHIAtlantic, Cape May, Cumberland, Salem24 hr
Jul 5, 3:53 PM EDTCoastal Flood StatementPHIAtlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more9 hr
Jul 4, 9:18 PM EDTSpecial Weather StatementPHICarbon, Monroe57 min
Jul 4, 10:37 PM EDTSpecial Weather StatementPHIBerks, Lehigh38 min
Jul 4, 11:07 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh27 min
Jul 4, 11:37 PM EDTSpecial Weather StatementPHIMontgomery38 min
Jul 4, 11:45 PM EDTSevere Thunderstorm WarningPHIBucks, Montgomery28 min
Jul 5, 1:34 AM EDTSpecial Weather StatementPHILehigh56 min
Jul 5, 1:41 AM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Carbon, Lehigh, Montgomery, Northampton34 min
Jul 5, 6:49 PM EDTSpecial Weather StatementPHIKent41 min
Jul 5, 7:28 PM EDTSpecial Weather StatementPHIKent, Queen Anne's47 min
Jul 5, 7:36 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's39 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.