Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

December 18, 2012Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Dec 18, 2012, 3:10 PM EST for Ocean County, New Jersey. It was in force for 65 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: Dec 18, 2012, 3:10 PM EST (20:10 UTC)
Expired: Dec 18, 2012, 4:15 PM EST
In force: 65 min
Issued by: NWS Philadelphia/Mount Holly

County Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 29 km from the middle of the area, began a volume at 20:12 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.2 hours before the alert went out and 166 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: 4 J/kg
Mixed-layer CIN: -119 J/kg
Mixed-layer LCL: 449 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 121 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.

966 
WWUS81 KPHI 182010
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
310 PM EST TUE DEC 18 2012

NJZ020-026-182115-
COASTAL OCEAN NJ-OCEAN NJ-
310 PM EST TUE DEC 18 2012

...A CLUSTER OF SHOWERS AND ISOLATED THUNDERSTORMS WILL AFFECT 
SOUTHERN OCEAN COUNTY...

AT 307 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A  
CLUSTER OF SHOWERS AND ISOLATED THUNDERSTORMS 15 MILES SOUTH OF TOMS 
RIVER...MOVING EAST AT 30 MPH. THE SHOWERS AND THUNDERSTORMS WILL BE 
NEAR BARNEGAT LIGHT AND BARNEGAT AROUND 315 PM

WIND GUSTS TO 40 MPH AND PEA SIZED HAIL ARE POSSIBLE WITH ANY 
STRONGER SHOWER OR THUNDERSTORM.

LAT...LON 3977 7408 3963 7417 3962 7422 3964 7424
      3962 7425 3961 7434 3986 7437 3988 7413
      3986 7412 3977 7418 3972 7415 3977 7415
      3982 7410 3986 7410 3989 7407

$$

HAYES

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 18, 12:30 AM EST	Special Weather Statement	PHI	Cumberland	60 min
Dec 18, 3:51 AM EST	Gale Warning	PHI		30 hr
Dec 18, 1:26 PM EST	Special Weather Statement	PHI	Atlantic	64 min
Dec 18, 1:38 PM EST	Special Weather Statement	PHI	Hunterdon	52 min
Dec 18, 1:40 PM EST	Special Weather Statement	PHI	Mercer	65 min
Dec 18, 2:00 PM EST	Special Weather Statement	PHI	Hunterdon	60 min
Dec 18, 2:05 PM EST	Special Weather Statement	PHI	Burlington, Camden, Ocean	55 min
Dec 18, 2:44 PM EST	Special Weather Statement	PHI	Monmouth	61 min
Dec 18, 2:48 PM EST	Special Weather Statement	PHI	Mercer	57 min
Dec 18, 3:08 PM EST	Special Weather Statement	PHI	Ocean	52 min
Dec 18, 3:24 PM EST	Special Weather Statement	PHI	Burlington	66 min
Dec 18, 3:41 PM EST	Special Weather Statement	PHI	Monmouth	64 min
Dec 18, 3:55 PM EST	Special Weather Statement	PHI	Ocean	65 min
Dec 18, 1:19 PM EST	Special Weather Statement	PHI	Berks, Chester, Delaware, Montgomery, Philadelphia	56 min
Dec 18, 2:15 PM EST	Special Weather Statement	PHI	Chester, Montgomery, Philadelphia	60 min
Dec 18, 2:23 PM EST	Special Weather Statement	PHI	Bucks	52 min
Dec 17, 11:31 PM EST	Special Weather Statement	PHI	Kent	29 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.