Alert archive / New Jersey / Mesoscale Discussions in 2016

Mesoscale Discussion 824

June 5, 20166 states

The Storm Prediction Center issued this mesoscale discussion at Jun 5, 2016, 4:57 PM EDT for 6 states. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued: Jun 5, 2016, 4:57 PM EDT (20:57 UTC)
Expired: Jun 5, 2016, 6:30 PM EDT
In force: 93 min
Issued by: the Storm Prediction Center

All 41 counties

Kent County, DE, New Castle County, DE, Anne Arundel County, MD, Calvert County, MD, Caroline County, MD, Cecil County, MD, Charles County, MD, Kent County, MD, Prince George's County, MD, Queen Anne's County, MD, Talbot County, MD, Atlantic County, NJ, Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland 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, Sussex County, NJ, Union County, NJ, Warren County, NJ, Kings County, NY, New York County, NY, Richmond County, NY, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA, Stafford County, VA

The radar

The Philadelphia radar (KDIX), 74 km from the middle of the area, began a volume at 20:58 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 12:00Z, 9.0 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: 60 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 752 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 5, 3:12 PM EDT	Severe Thunderstorm Watch	SPC	Kent, New Castle, Sussex	6 hr
Jun 5, 1:14 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 9 more	91 min
Jun 5, 3:48 PM EDT	Severe Thunderstorm Watch	SPC	Dorchester, Somerset, Wicomico, Worcester	7 hr
Jun 5, 2:38 PM EDT	Severe Thunderstorm Watch	SPC	Crawford, Erie, Lawrence, Mercer, Venango	4 hr
Jun 5, 4:33 PM EDT	Mesoscale Discussion	SPC	Beaver, Butler, Clarion, Forest, Lawrence, Mercer and 2 more	87 min
Jun 5, 7:23 PM EDT	Mesoscale Discussion	SPC	Gloucester, Greensville, Isle of Wight, James City, Mathews, Northampton and 15 more	97 min

Nearby

Mesoscale Discussions in New Jersey, 2016 Mesoscale Discussions in Maryland, 2016 Mesoscale Discussions in Pennsylvania, 2016 Every mesoscale discussion in 2016

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.