Alert archive / New Jersey / Special Weather Statements in 2014

Special Weather Statement, NWS Philadelphia/Mount Holly

July 28, 20144 states

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 28, 2014, 12:35 AM EDT for 4 states. It was in force for 85 min. 1 report 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: Jul 28, 2014, 12:35 AM EDT (04:35 UTC)
Expired: Jul 28, 2014, 2:00 AM EDT
In force: 85 min
Issued by: NWS Philadelphia/Mount Holly

Counties New Castle County, DE, Cecil County, MD, Camden County, NJ, Gloucester County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Salem County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 52 km from the middle of the area, began a volume at 04:37 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
Jul 28, 1:08 AM EDT	TSTM WND DMG	Medford Twp, NJ	TREES DOWN WITH SOME DAMAGE TO HOMES IN THE HOOT OWL SUBDIVISION IN MEDFORD TOWNSHIP. TWO HOMES WITH MAJOR DAMAGE AND UNINHABITABLE. ABOUT 4 TO 5 HOMES WITH SOME SHINGLE OR SIDING DAMAGE. ALSO... IN THREE LOCATIONS... A TREE FELL ONTO A CAR.

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, 4.6 hours before the alert went out and 210 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: 942 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 994 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 146 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

197 
WWUS81 KPHI 280435
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1235 AM EDT MON JUL 28 2014

DEZ001-MDZ008-012-NJZ012-013-015>019-026-PAZ070-071-101-102-104-106-
280600-
CAMDEN NJ-CECIL MD-COASTAL OCEAN NJ-DELAWARE PA-EASTERN CHESTER PA-
EASTERN MONTGOMERY PA-GLOUCESTER NJ-KENT MD-LOWER BUCKS PA-MERCER NJ-
MIDDLESEX NJ-NEW CASTLE DE-NORTHWESTERN BURLINGTON NJ-PHILADELPHIA 
PA-SALEM NJ-WESTERN CHESTER PA-WESTERN MONMOUTH NJ-
1235 AM EDT MON JUL 28 2014

...STRONG THUNDERSTORMS WILL CONTINUE TO AFFECT THE INTERSTATE 95 
CORRIDOR FROM CENTRAL NEW JERSEY TO NORTHEASTERN MARYLAND...

AN AREA OF STRONG THUNDERSTORMS EXTENDED FROM TRENTON TO 
PHILADELPHIA AND CHERRY HILL TO WILMINGTON AND ELKTON AROUND 1230 AM.
THE THUNDERSTORMS WERE MOVING TO THE EAST AROUND 20 MPH.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STRONG 
THUNDERSTORMS. 

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING. DO NOT STAY IN THE 
OPEN NOR SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE 
INDOORS WHEN A THUNDERSTORM APPROACHES. 

VERY HEAVY RAIN WILL FALL FROM THESE STRONG THUNDERSTORMS AND IT 
WILL CAUSE WATER TO POND ON ROADS AND FILL POOR DRAINAGE AREAS. THE 
RAIN CAN CAUSE RAPID RISES ON SMALL STREAMS AND CREEKS. 

LAT...LON 3992 7406 3991 7409 4009 7410 4017 7441
      3952 7498 3956 7524 3938 7543 3959 7555
      3937 7550 3900 7623 3952 7599 3972 7623
      4011 7595 4024 7570 4011 7542 4041 7504
      4038 7461 4058 7452 4061 7421 4042 7402

$$

IOVINO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 10:56 PM EDT	Special Weather Statement	PHI	Warren	34 min
Jul 27, 11:28 PM EDT	Special Weather Statement	PHI	Mercer	62 min
Jul 27, 11:32 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Salem	58 min
Jul 28, 12:59 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Salem	4 hr
Jul 28, 1:00 AM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	45 min
Jul 28, 1:26 AM EDT	Special Marine Warning	PHI		49 min
Jul 28, 1:45 AM EDT	Areal Flood Advisory	PHI	Monmouth, Ocean	4 hr
Jul 28, 2:04 AM EDT	Special Weather Statement	PHI	Monmouth, Ocean	56 min
Jul 27, 8:28 PM EDT	Special Weather Statement	PHI	Berks	62 min
Jul 27, 8:42 PM EDT	Areal Flood Advisory	PHI	Chester, Montgomery	3 hr
Jul 27, 9:12 PM EDT	Special Weather Statement	PHI	Chester	63 min
Jul 27, 9:21 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester	54 min
Jul 27, 9:43 PM EDT	Flash Flood Warning	PHI	Berks, Chester, Montgomery	4 hr
Jul 27, 10:20 PM EDT	Special Weather Statement	PHI	Chester, Montgomery	55 min
Jul 27, 10:26 PM EDT	Areal Flood Advisory	PHI	Bucks, Lehigh, Northampton	3 hr
Jul 27, 10:33 PM EDT	Flash Flood Warning	PHI	Chester, Montgomery	4 hr
Jul 27, 10:44 PM EDT	Special Weather Statement	PHI	Chester, Delaware	61 min
Jul 27, 10:47 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	43 min
Jul 28, 12:31 AM EDT	Flash Flood Warning	PHI	Delaware, Montgomery, Philadelphia	3 hr
Jul 28, 2:58 AM EDT	River Flood Warning	PHI	Chester	8 hr
Jul 28, 1:39 AM EDT	River Flood Warning	PHI	New Castle	8 hr

Nearby

Special Weather Statements in New Jersey, 2014 Special Weather Statements in Pennsylvania, 2014 Special Weather Statements in Maryland, 2014 Every special weather statement in 2014

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.