Alert archive / North Carolina / Mesoscale Discussions in 2015

Mesoscale Discussion 1206

June 26, 201529 counties in North Carolina; Marlboro County, York County, South Carolina

The Storm Prediction Center issued this mesoscale discussion at Jun 26, 2015, 8:45 PM EDT for 29 counties in North Carolina; Marlboro County, York County, South Carolina. It was in force for 60 min.

The area

The outline as issued.

The facts

Issued: Jun 26, 2015, 8:45 PM EDT (00:45 UTC)
Expired: Jun 26, 2015, 9:45 PM EDT
In force: 60 min
Issued by: the Storm Prediction Center

All 31 counties

Alexander County, NC, Anson County, NC, Bladen County, NC, Cabarrus County, NC, Caldwell County, NC, Catawba County, NC, Cumberland County, NC, Davidson County, NC, Davie County, NC, Duplin County, NC, Gaston County, NC, Hoke County, NC, Iredell County, NC, Lee County, NC, Lincoln County, NC, Mecklenburg County, NC, Montgomery County, NC, Moore County, NC, Onslow County, NC, Pender County, NC, Randolph County, NC, Richmond County, NC, Robeson County, NC, Rowan County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Union County, NC, Wilkes County, NC, Marlboro County, SC, York County, SC

The radar

The Raleigh/Durham radar (KRAX), 100 km from the middle of the area, began a volume at 00:46 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.8 hours before the alert went out and 118 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: 536 J/kg
Mixed-layer CIN: -135 J/kg
Mixed-layer LCL: 1418 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.9

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 27, 1:54 PM EDT	Tornado Watch	SPC	Bertie, Camden, Chowan, Currituck, Gates, Hertford and 3 more	6 hr
Jun 27, 2:06 PM EDT	Mesoscale Discussion	SPC	Alamance, Alexander, Anson, Cabarrus, Caswell, Catawba and 23 more	2 hr
Jun 27, 6:23 PM EDT	Mesoscale Discussion	SPC	Alamance, Alexander, Anson, Beaufort, Bertie, Bladen and 65 more	2 hr

Nearby

Mesoscale Discussions in North Carolina, 2015 Mesoscale Discussions in South Carolina, 2015 Every mesoscale discussion in 2015

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.