Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

May 4, 2012Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at May 4, 2012, 4:21 AM EDT for Sussex County, New Jersey. It was in force for 54 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: May 4, 2012, 4:21 AM EDT (08:21 UTC)
Expired: May 4, 2012, 5:15 AM EDT
In force: 54 min
Issued by: NWS Philadelphia/Mount Holly

County Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 148 km from the middle of the area, began a volume at 08:20 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 8.4 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 436 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 62 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.

659 
WWUS81 KPHI 040821
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
421 AM EDT FRI MAY 4 2012

NJZ001-040915-
SUSSEX NJ-
421 AM EDT FRI MAY 4 2012

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

AT 416 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 7 MILES NORTHWEST OF MONTAGUE...MOVING EAST
SOUTHEAST AT 35 MPH. THE THUNDERSTORM WILL BE NEAR HIGH POINT AND 
MONTAGUE AROUND 430 AM...VERNON VALLEY AND SUSSEX AROUND 445 AM... 
AND HIGHLAND LAKE AROUND 500 AM.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM
ALONG WITH BRIEF HEAVY DOWNPOURS AND DANGEROUS CLOUD TO GROUND 
LIGHTNING.

LAT...LON 4122 7438 4119 7437 4113 7446 4126 7485
      4127 7485 4129 7484 4131 7480 4132 7480
      4135 7476 4136 7469

$$

RPW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 5:41 AM EDT	Special Weather Statement	PHI	Morris, Sussex, Warren	64 min
May 4, 6:07 PM EDT	Special Weather Statement	PHI	Sussex, Warren	113 min
May 4, 4:37 AM EDT	Special Weather Statement	PHI	Carbon, Monroe	53 min
May 4, 4:45 PM EDT	Special Weather Statement	PHI	Carbon	45 min
May 4, 1:02 AM EDT	Special Weather Statement	PHI	Caroline, Queen Anne's, Talbot	58 min
May 4, 12:56 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's, Talbot	15 min
May 4, 1:34 PM EDT	Special Weather Statement	PHI	Talbot	26 min
May 4, 2:07 PM EDT	Special Weather Statement	PHI	Caroline	38 min

Nearby

Special Weather Statements in New Jersey, 2012 Every 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.