Alert archive / New Jersey / Special Weather Statements in 2013

Special Weather Statement, NWS Philadelphia/Mount Holly

September 12, 2013Burlington County, Middlesex County, Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Sep 12, 2013, 7:28 PM EDT for Burlington County, Middlesex County, Monmouth County, New Jersey. It was in force for 62 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: Sep 12, 2013, 7:28 PM EDT (23:28 UTC)
Expired: Sep 12, 2013, 8:30 PM EDT
In force: 62 min
Issued by: NWS Philadelphia/Mount Holly

Counties Burlington County, NJ, Middlesex County, NJ, Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 50 km from the middle of the area, began a volume at 23:29 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, 11.5 hours before the alert went out and 131 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: 1195 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 836 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 56 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this special weather statement went out at Sep 12, 6:51 PM EDT, 37 minutes earlier.

Area forecast discussion, Sep 12, 6:51 PM EDT, 37 minutes before

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Hazardous weather outlook, Sep 12, 6:39 PM EDT, 49 minutes before

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In the hours before

Local storm report, Sep 12, 6:54 PM EDT, 34 minutes before

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Local storm report, Sep 12, 7:04 PM EDT, 24 minutes before

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Local storm report, Sep 12, 7:09 PM EDT, 19 minutes before

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Local storm report, Sep 12, 7:26 PM EDT, 2 minutes before

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Special weather statement, Sep 12, 7:26 PM EDT, 2 minutes before

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Special weather statement, Sep 12, 7:28 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 12, 6:43 AM EDT	Special Weather Statement	PHI	Hunterdon	62 min
Sep 12, 7:38 AM EDT	Areal Flood Advisory	PHI	Hunterdon	3 hr
Sep 12, 8:16 AM EDT	Flash Flood Warning	PHI	Hunterdon	3 hr
Sep 12, 11:15 AM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset	60 min
Sep 12, 11:35 AM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset	55 min
Sep 12, 1:19 PM EDT	Special Weather Statement	PHI	Monmouth	56 min
Sep 12, 3:13 PM EDT	Special Weather Statement	PHI	Monmouth	62 min
Sep 12, 5:38 PM EDT	Small Craft Advisory	PHI		7 hr
Sep 12, 6:00 PM EDT	Special Weather Statement	PHI	Morris, Sussex, Warren	90 min
Sep 12, 6:07 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	68 min
Sep 12, 6:35 PM EDT	Special Weather Statement	PHI	Middlesex	55 min
Sep 12, 6:43 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Gloucester, Hunterdon, Mercer, Somerset	62 min
Sep 12, 2:26 PM EDT	Special Weather Statement	PHI	Carbon, Monroe	64 min
Sep 12, 3:43 PM EDT	Special Weather Statement	PHI	Berks	62 min
Sep 12, 4:21 PM EDT	Special Weather Statement	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	84 min
Sep 12, 4:40 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Carbon, Lehigh, Monroe, Montgomery and 1 more	95 min
Sep 12, 5:47 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	58 min
Sep 12, 6:40 PM EDT	Special Weather Statement	PHI	Kent	65 min
Sep 12, 7:26 PM EDT	Special Weather Statement	PHI	Sussex	64 min
Sep 12, 2:21 PM EDT	Special Weather Statement	PHI	Kent, Queen Anne's	54 min
Sep 12, 5:58 PM EDT	Special Weather Statement	PHI	Queen Anne's, Talbot	62 min
Sep 12, 6:21 PM EDT	Severe Thunderstorm Warning	PHI	Talbot	39 min

Nearby

Special Weather Statements in New Jersey, 2013 Every special weather statement in 2013

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.