Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

July 23, 2012Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 23, 2012, 12:19 PM EDT for Sussex County, New Jersey. It was in force for 56 min. 1 report 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 23, 2012, 12:19 PM EDT (16:19 UTC)
Expired
Jul 23, 2012, 1:15 PM EDT
In force
56 min
Issued by
NWS Philadelphia/Mount Holly

County Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 146 km from the middle of the area, began a volume at 16:20 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 23, 12:37 PM EDTHAIL 1Hainesville, NJ

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 12:00Z, 4.3 hours before the alert went out and 156 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 2012-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 253 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 2012-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939Sfc1 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
253 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
903 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
69 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.

565 
WWUS81 KPHI 231619
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1219 PM EDT MON JUL 23 2012

NJZ001-231715-
SUSSEX NJ-
1219 PM EDT MON JUL 23 2012

...A STRONG THUNDERSTORM WILL AFFECT SUSSEX COUNTY...

AT 1214 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES SOUTHWEST OF MONTAGUE...MOVING EAST AT 20
MPH. THE THUNDERSTORM WILL BE NEAR HAINESVILLE...MONTAGUE AROUND 1230
PM...HIGH POINT AROUND 1245 PM...SUSSEX...HAMBURG AROUND 100 PM...
VERNON VALLEY AND HIGHLAND LAKE AROUND 115 PM.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM AS WELL AS SMALL
HAIL.

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

LAT...LON 4121 7437 4119 7437 4109 7449 4116 7490
      4121 7487 4124 7487 4129 7484 4135 7476
      4136 7471 4136 7468

$$

TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 11:26 AM EDTSpecial Weather StatementPHISussex94 min
Jul 23, 12:32 PM EDTSevere Thunderstorm WarningPHISussex73 min
Jul 23, 1:00 PM EDTSevere Thunderstorm WarningPHISussex60 min
Jul 23, 1:11 PM EDTFlash Flood WarningPHISussex3 hr
Jul 23, 1:57 PM EDTSevere Thunderstorm WarningPHISussex78 min
Jul 23, 2:24 PM EDTSpecial Weather StatementPHIWarren66 min
Jul 23, 2:44 PM EDTSevere Thunderstorm WarningPHIMorris, Warren76 min
Jul 23, 2:47 PM EDTFlash Flood WarningPHIMorris, Sussex, Warren3 hr
Jul 23, 3:42 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset78 min
Jul 23, 4:56 PM EDTSpecial Weather StatementPHIMiddlesex, Monmouth, Somerset94 min
Jul 23, 5:56 PM EDTSpecial Weather StatementPHIBurlington, Camden, Hunterdon, Mercer64 min
Jul 23, 6:35 PM EDTSpecial Weather StatementPHIMorris, Sussex85 min
Jul 23, 6:51 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Sussex, Warren69 min
Jul 23, 7:39 PM EDTFlash Flood WarningPHISussex, Warren2 hr
Jul 23, 7:56 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren59 min
Jul 23, 4:31 PM EDTSpecial Weather StatementPHIBerks59 min
Jul 23, 5:09 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Lehigh, Montgomery51 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.