Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

June 12, 20125 counties in New Jersey; Monroe County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 12, 2012, 10:18 PM EDT for 5 counties in New Jersey; Monroe County, Northampton County, Pennsylvania. It was in force for 117 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
Jun 12, 2012, 10:18 PM EDT (02:18 UTC)
Expired
Jun 13, 2012, 12:15 AM EDT
In force
117 min
Issued by
NWS Philadelphia/Mount Holly

Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 120 km from the middle of the area, began a volume at 02:18 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, 2.3 hours before the alert went out and 183 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 2012-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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 2012-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 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
10 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
551 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
136 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.

971 
WWUS81 KPHI 130218
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1018 PM EDT TUE JUN 12 2012

NJZ001-007>010-PAZ055-062-069-130415-
BUCKS PA-HUNTERDON NJ-MONROE PA-MORRIS NJ-NORTHAMPTON PA-SOMERSET NJ-
SUSSEX NJ-WARREN NJ-
1018 PM EDT TUE JUN 12 2012

...AN AREA OF SHOWERS PRODUCING HEAVY RAINFALL WILL AFFECT WARREN...
HUNTERDON...MORRIS...SOMERSET...SUSSEX...BUCKS...MONROE AND
NORTHAMPTON COUNTIES...

AT 1012 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF SHOWERS PRODUCING HEAVY RAINFALL 11 MILES NORTH OF EASTON...
MOVING EAST AT 15 MPH. THE SHOWERS WILL BE NEAR PORTLAND...HARMONY...
ALPHA...FERNDALE AROUND 1025 PM...COLUMBIA...REVERE...OTTSVILLE
AROUND 1030 PM...ROXBURG...ECHO LAKE AROUND 1035 PM AND BELVIDERE
AROUND 1040 PM.

VERY HEAVY RAIN WILL FALL FROM THESE SHOWERS...AND WILL CAUSE WATER 
TO POND ON ROADS AND QUICKLY FILL POOR DRAINAGE AREAS.

LAT...LON 4053 7453 4045 7539 4050 7539 4054 7533
      4057 7538 4117 7534 4120 7514 4115 7514
      4115 7508 4110 7504 4109 7502 4116 7491
      4123 7486 4127 7454

$$

HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 9:26 PM EDTAreal Flood AdvisoryPHIAtlantic, Cumberland, Gloucester, Salem97 min
Jun 12, 10:17 PM EDTAreal Flood AdvisoryPHICamden, Gloucester, Salem106 min
Jun 12, 10:29 PM EDTSpecial Weather StatementPHICape May, Cumberland61 min
Jun 12, 10:54 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Ocean3 hr
Jun 12, 11:01 PM EDTAreal Flood WarningPHIAtlantic, Cumberland, Gloucester, Salem6 hr
Jun 12, 11:06 PM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset, Sussex104 min
Jun 13, 12:13 AM EDTSpecial Weather StatementPHICape May, Cumberland62 min
Jun 13, 3:35 PM EDTRip Current StatementPHIAtlantic, Cape May, Monmouth, Ocean28 hr
Jun 12, 10:47 PM EDTRiver Flood WarningPHINew Castle6 hr

Nearby

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