Alert archive / North Carolina / Mesoscale Discussions in 2013

Mesoscale Discussion 1015

June 10, 201326 counties in North Carolina; 18 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2013, 4:03 PM EDT for 26 counties in North Carolina; 18 counties in South Carolina. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued
Jun 10, 2013, 4:03 PM EDT (20:03 UTC)
Expired
Jun 10, 2013, 5:30 PM EDT
In force
87 min
Issued by
the Storm Prediction Center
All 44 counties

Alamance County, NC, Anson County, NC, Chatham County, NC, Cumberland County, NC, Davidson County, NC, Durham County, NC, Franklin County, NC, Guilford County, NC, Harnett County, NC, Hoke County, NC, Johnston County, NC, Lee County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Orange County, NC, Randolph County, NC, Richmond County, NC, Robeson County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Union County, NC, Wake County, NC, Wayne County, NC, Wilson County, NC, Aiken County, SC, Calhoun County, SC, Chesterfield County, SC, Clarendon County, SC, Darlington County, SC, Dillon County, SC, Fairfield County, SC, Florence County, SC, Kershaw County, SC, Lancaster County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, Marlboro County, SC, Orangeburg County, SC, Richland County, SC, Sumter County, SC, Williamsburg County, SC

The radar

The Raleigh/Durham radar (KRAX), 131 km from the middle of the area, began a volume at 20:04 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 12:00Z, 8.1 hours before the alert went out and 103 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2013-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 855 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2013-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
855 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
478 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.7

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.

IssuedProductOfficeCountiesLasted
Jun 10, 11:31 AM EDTMesoscale DiscussionSPCAnson, Cabarrus, Chatham, Cleveland, Cumberland, Davidson and 18 more119 min
Jun 10, 12:56 PM EDTMesoscale DiscussionSPCGates, Hertford, Northampton, Warren2 hr
Jun 10, 1:18 PM EDTTornado WatchSPCAlamance, Alexander, Anson, Bladen, Brunswick, Burke and 47 more9 hr
Jun 10, 2:02 PM EDTTornado WatchSPCAlleghany, Bertie, Camden, Caswell, Chowan, Currituck and 10 more10 hr
Jun 10, 4:38 PM EDTMesoscale DiscussionSPCGates97 min
Jun 10, 5:47 PM EDTMesoscale DiscussionSPCBeaufort, Bertie, Brunswick, Chowan, Columbus, Craven and 14 more58 min
Jun 10, 6:27 PM EDTMesoscale DiscussionSPCGraham93 min
Jun 10, 6:49 PM EDTMesoscale DiscussionSPCGates, Halifax, Hertford, Northampton86 min
Jun 10, 7:20 PM EDTMesoscale DiscussionSPCBladen, Brunswick, Columbus, Craven, Cumberland, Duplin and 14 more85 min

Nearby

Mesoscale Discussions in North Carolina, 2013Mesoscale Discussions in South Carolina, 2013Every mesoscale discussion 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.