Alert archive / New Jersey / Mesoscale Discussions in 2007

Mesoscale Discussion 1305

June 27, 20074 states

The Storm Prediction Center issued this mesoscale discussion at Jun 27, 2007, 10:03 PM EDT for 4 states. It was in force for 57 min.

The area

The outline as issued.

The facts

Issued: Jun 27, 2007, 10:03 PM EDT (02:03 UTC)
Expired: Jun 27, 2007, 11:00 PM EDT
In force: 57 min
Issued by: the Storm Prediction Center

All 38 counties

New Castle County, DE, Atlantic County, NJ, Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Passaic County, NJ, Salem County, NJ, Somerset County, NJ, Union County, NJ, Warren County, NJ, Bronx County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Suffolk County, NY, Westchester County, NY, Berks County, PA, Bucks County, PA, Chester County, PA, Delaware County, PA, Lancaster County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA, York County, PA

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 2.1 hours before the alert went out and 130 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: 348 J/kg
Mixed-layer CIN: -181 J/kg
Mixed-layer LCL: 1243 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 79 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.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 28, 12:52 PM EDT	Mesoscale Discussion	SPC		83 min
Jun 28, 2:54 PM EDT	Severe Thunderstorm Watch	SPC	Greater Bridgeport Planning Region, Capitol Planning Region, Northwest Hills Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region and 1 more	6 hr
Jun 28, 4:04 PM EDT	Mesoscale Discussion	SPC		86 min
Jun 28, 2:07 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	8 hr
Jun 28, 7:30 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	60 min
Jun 28, 12:37 AM EDT	Mesoscale Discussion	SPC	Clinton	53 min

Nearby

Mesoscale Discussions in New Jersey, 2007 Mesoscale Discussions in Pennsylvania, 2007 Mesoscale Discussions in New York, 2007 Every mesoscale discussion in 2007

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.