Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

August 5, 2012Burlington County, Mercer County, Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 5, 2012, 9:48 PM EDT for Burlington County, Mercer County, Monmouth County, New Jersey. It was in force for 57 min. 3 reports 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: Aug 5, 2012, 9:48 PM EDT (01:48 UTC)
Expired: Aug 5, 2012, 10:45 PM EDT
In force: 57 min
Issued by: NWS Philadelphia/Mount Holly

Counties Burlington County, NJ, Mercer County, NJ, Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 32 km from the middle of the area, began a volume at 01:48 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

Time	Report	Where	Remark
Aug 5, 10:10 PM EDT	TSTM WND DMG	Mansfield, NJ	TREES DOWN.
Aug 5, 10:20 PM EDT	TSTM WND DMG	Chesterfield, NJ	TREES DOWN
Aug 5, 10:47 PM EDT	TSTM WND DMG	Englishtown, NJ	LARGE TREE LIMB BROKEN

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 00:00Z, 1.8 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-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: 1710 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 748 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 120 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.

228 
WWUS81 KPHI 060148
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
948 PM EDT SUN AUG 5 2012

NJZ012-013-015-018>020-027-PAZ069-060245-
BUCKS PA-CAMDEN NJ-MERCER NJ-MIDDLESEX NJ-NORTHWESTERN BURLINGTON NJ-
OCEAN NJ-SOUTHEASTERN BURLINGTON NJ-WESTERN MONMOUTH NJ-
948 PM EDT SUN AUG 5 2012

...STRONG THUNDERSTORMS WILL AFFECT BUCKS...BURLINGTON...CAMDEN...
MERCER...MIDDLESEX...MONMOUTH AND OCEAN COUNTIES...

AT 945 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR TRENTON TO 
AROUND CHERRY HILL...MOVING EAST AT 35 MPH. THE THUNDERSTORMS WILL 
BE NEAR MARLTON AND BURLINGTON AROUND 945 PM...LAWRENCEVILLE AND 
PRINCETON JUNCTION AROUND 1000 PM...CLEARBROOK PARK AND CONCORDIA 
AROUND 1015 PM...ENGLISHTOWN AND YORKETOWN AROUND 1030 PM...AND 
LAKEHURST AND FREEWOOD ACRES AROUND 1045 PM.

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

WIND GUSTS TO 40 MPH ARE POSSIBLE.

EXPECT SMALL HAIL AND FREQUENT...DANGEROUS CLOUD TO GROUND LIGHTNING
FROM THESE STORMS.

LAT...LON 3984 7433 3985 7508 4003 7500 4005 7497
      4006 7498 4009 7495 4011 7497 4038 7485
      4038 7410

$$

IOVINO

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 9:17 PM EDT	Special Weather Statement	PHI	Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem	58 min
Aug 5, 10:00 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Monmouth, Ocean	60 min
Aug 5, 10:14 PM EDT	Special Marine Warning	PHI		2 hr
Aug 5, 10:42 PM EDT	Special Weather Statement	PHI	Monmouth	48 min
Aug 5, 10:47 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	43 min
Aug 5, 11:02 PM EDT	Special Weather Statement	PHI	Ocean	58 min
Aug 5, 11:25 PM EDT	Special Marine Warning	PHI		65 min
Aug 5, 11:31 PM EDT	Areal Flood Advisory	PHI	Salem	3 hr
Aug 5, 11:42 PM EDT	Special Weather Statement	PHI	Gloucester, Salem	63 min
Aug 6, 12:00 AM EDT	Special Weather Statement	PHI	Burlington, Camden, Gloucester	60 min
Aug 6, 12:38 AM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Ocean and 1 more	3 hr
Aug 6, 12:46 AM EDT	Special Weather Statement	PHI	Burlington, Camden, Ocean	59 min
Aug 6, 1:09 AM EDT	Special Weather Statement	PHI	Atlantic	66 min
Aug 6, 1:36 AM EDT	Special Marine Warning	PHI		54 min
Aug 6, 2:23 AM EDT	Special Weather Statement	PHI	Atlantic	67 min
Aug 6, 3:32 AM EDT	Special Weather Statement	PHI	Atlantic, Cumberland	58 min
Aug 6, 5:21 AM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Cumberland, Gloucester, Ocean	113 min
Aug 5, 10:50 PM EDT	Special Weather Statement	PHI	New Castle	55 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.