Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

July 1, 2012Morris County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 1, 2012, 5:31 PM EDT for Morris County, New Jersey. It was in force for 59 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 1, 2012, 5:31 PM EDT (21:31 UTC)
Expired
Jul 1, 2012, 6:30 PM EDT
In force
59 min
Issued by
NWS Philadelphia/Mount Holly

County Morris County, NJ

The radar

The Philadelphia radar (KDIX), 99 km from the middle of the area, began a volume at 21:34 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, 9.5 hours before the alert went out and 136 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 2012-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 254 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2012-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
254 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1757 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
40 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.

761 
WWUS81 KPHI 012131
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
531 PM EDT SUN JUL 1 2012

NJZ008-012230-
MORRIS NJ-
531 PM EDT SUN JUL 1 2012

...STRONG THUNDERSTORMS AFFECTING MORRIS COUNTY...

AT 526 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF STRONG THUNDERSTORMS ABOUT 10 MILES NORTHWEST OF 
MORRISTOWN...MOVING EAST AT 25 MPH. THE THUNDERSTORMS WILL BE NEAR 
MORRIS PLAINS AND VICTORY GARDENS AROUND 545 PM...HANOVER TOWNSHIP
AND FLORHAM PARK AROUND 600 PM AND CHATHAM AROUND 615 PM.

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THE STORMS.
ALSO...DANGEROUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THE STORMS.
DO NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS
WHEN A THUNDERSTORM APPROACHES.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE AREA UNTIL 800 PM. 

LAT...LON 4089 7428 4090 7433 4086 7432 4082 7432
      4080 7436 4074 7436 4068 7444 4071 7453
      4076 7456 4074 7461 4082 7483 4092 7476
      4091 7468 4094 7464 4096 7464 4092 7427

$$

MPD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 3:11 PM EDTSpecial Weather StatementPHIWarren79 min
Jul 1, 3:25 PM EDTSevere Thunderstorm WarningPHISussex, Warren65 min
Jul 1, 4:31 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren59 min
Jul 1, 4:38 PM EDTSpecial Weather StatementPHIMiddlesex52 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.