Alert archive / New Jersey / Special Weather Statements in 2014

Special Weather Statement, NWS Philadelphia/Mount Holly

July 13, 2014Burlington County, Camden County, New Jersey; Delaware County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 13, 2014, 11:21 PM EDT for Burlington County, Camden County, New Jersey; Delaware County, Philadelphia County, Pennsylvania. 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: Jul 13, 2014, 11:21 PM EDT (03:21 UTC)
Expired: Jul 14, 2014, 12:15 AM EDT
In force: 54 min
Issued by: NWS Philadelphia/Mount Holly

Counties Burlington County, NJ, Camden County, NJ, Delaware County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 74 km from the middle of the area, began a volume at 03:21 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

Washington/Dulle, VA (KIAD), launched 00:00Z, 3.4 hours before the alert went out and 216 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: 569 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1600 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 172 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.

269 
WWUS81 KPHI 140321
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1121 PM EDT SUN JUL 13 2014

NJZ017>019-027-PAZ070-071-104-106-140415-
CAMDEN NJ-DELAWARE PA-EASTERN MONTGOMERY PA-GLOUCESTER NJ-
LOWER BUCKS PA-NORTHWESTERN BURLINGTON NJ-PHILADELPHIA PA-
SOUTHEASTERN BURLINGTON NJ-
1121 PM EDT SUN JUL 13 2014

...A STRONG THUNDERSTORM WILL AFFECT EASTERN DELAWARE...NORTHERN
CAMDEN...NORTHWESTERN BURLINGTON...NORTHWESTERN GLOUCESTER...
PHILADELPHIA...SOUTHEASTERN BUCKS AND SOUTHEASTERN MONTGOMERY
COUNTIES...

AT 1120 PM EDT...A STRONG THUNDERSTORM WAS NEAR DREXEL HILL IN 
PENNSYLVANIA...MOVING EAST AT 30 MPH.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. 

VERY HEAVY RAIN WILL FALL FROM THIS STORM 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. 

THIS STORM WILL BE NEAR ROXBOROUGH AROUND 1130 PM...CENTER CITY
AROUND 1140 PM...CINNAMINSON AROUND 1150 PM...WILLINGBORO AROUND
MIDNIGHT...MOUNT HOLLY AROUND 1210 AM AND JACKSONVILLE AROUND 1220
AM.

LAT...LON 3979 7541 4002 7542 4002 7541 4004 7541
      4005 7540 4007 7536 4007 7537 4006 7540
      4010 7542 4014 7465 3977 7461

$$

IOVINO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 9:16 PM EDT	Special Weather Statement	PHI	Warren	89 min
Jul 13, 9:33 PM EDT	Severe Thunderstorm Warning	PHI	Warren	57 min
Jul 13, 10:18 PM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset	57 min
Jul 13, 10:27 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	47 min
Jul 13, 10:41 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Warren	2 hr
Jul 13, 10:48 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	37 min
Jul 13, 11:05 PM EDT	Special Marine Warning	PHI		85 min
Jul 13, 11:07 PM EDT	Special Weather Statement	PHI	Hunterdon, Mercer, Somerset	38 min
Jul 13, 11:27 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Middlesex, Morris, Somerset	2 hr
Jul 13, 11:47 PM EDT	Special Weather Statement	PHI	Mercer, Middlesex	43 min
Jul 14, 3:54 AM EDT	Flash Flood Watch	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	45 hr
Jul 14, 4:02 AM EDT	Small Craft Advisory	PHI		24 hr
Jul 14, 4:08 PM EDT	Special Weather Statement	PHI	Monmouth	52 min
Jul 14, 4:12 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	63 min
Jul 14, 4:17 PM EDT	Special Weather Statement	PHI	Sussex	58 min
Jul 14, 4:21 PM EDT	Areal Flood Advisory	PHI	Morris, Sussex	3 hr
Jul 14, 4:28 PM EDT	Flash Flood Warning	PHI	Monmouth, Ocean	4 hr
Jul 14, 5:33 PM EDT	Special Weather Statement	PHI	Monmouth	57 min
Jul 14, 5:54 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Warren	4 hr
Jul 14, 6:15 PM EDT	Flash Flood Warning	PHI	Hunterdon, Morris, Sussex, Warren	4 hr
Jul 14, 6:54 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Somerset	3 hr
Jul 14, 7:03 PM EDT	Severe Thunderstorm Warning	PHI	Salem	42 min
Jul 14, 7:17 PM EDT	Special Weather Statement	PHI	Mercer	58 min
Jul 14, 7:29 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	46 min
Jul 14, 7:39 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Salem	3 hr
Jul 14, 7:53 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Salem	67 min
Jul 13, 8:04 PM EDT	Special Weather Statement	PHI	Carbon	71 min
Jul 13, 8:33 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	57 min
Jul 13, 8:41 PM EDT	Special Weather Statement	PHI	Berks, Lehigh	2 hr
Jul 13, 9:04 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	56 min
Jul 13, 9:44 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Northampton	46 min
Jul 13, 10:06 PM EDT	Special Weather Statement	PHI	Berks	54 min
Jul 13, 10:14 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	46 min
Jul 14, 3:43 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	62 min
Jul 14, 4:38 PM EDT	Areal Flood Advisory	PHI	Chester	3 hr
Jul 14, 4:50 PM EDT	Areal Flood Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	4 hr
Jul 14, 5:06 PM EDT	Special Weather Statement	PHI	Bucks	54 min
Jul 14, 5:09 PM EDT	Areal Flood Advisory	PHI	Bucks, Montgomery	3 hr
Jul 14, 5:16 PM EDT	Special Weather Statement	PHI	Lehigh, Northampton	59 min
Jul 14, 5:31 PM EDT	Flash Flood Warning	PHI	Bucks, Lehigh, Northampton	3 hr
Jul 13, 9:26 PM EDT	Special Weather Statement	PHI	Cecil, Kent	64 min
Jul 13, 10:02 PM EDT	Special Weather Statement	PHI	Cecil, Kent, Queen Anne's	58 min
Jul 14, 6:04 PM EDT	Special Weather Statement	PHI	Caroline, Cecil, Kent, Queen Anne's	56 min
Jul 14, 6:28 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Cecil, Kent, Queen Anne's	62 min
Jul 14, 7:16 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	74 min
Jul 14, 7:49 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	51 min

Nearby

Special Weather Statements in New Jersey, 2014 Special Weather Statements in Pennsylvania, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.