Alert archive / South Carolina / Mesoscale Discussions in 2014

Mesoscale Discussion 671

May 23, 201416 counties in North Carolina; 40 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at May 23, 2014, 4:14 PM EDT for 16 counties in North Carolina; 40 counties in South Carolina. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued: May 23, 2014, 4:14 PM EDT (20:14 UTC)
Expired: May 23, 2014, 5:45 PM EDT
In force: 91 min
Issued by: the Storm Prediction Center

All 56 counties

Anson County, NC, Bladen County, NC, Brunswick County, NC, Columbus County, NC, Cumberland County, NC, Duplin County, NC, Hoke County, NC, Jones County, NC, New Hanover County, NC, Onslow County, NC, Pender County, NC, Richmond County, NC, Robeson County, NC, Sampson County, NC, Scotland County, NC, Union County, NC, Abbeville County, SC, Aiken County, SC, Anderson County, SC, Bamberg County, SC, Barnwell County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Cherokee County, SC, Chester County, SC, Chesterfield County, SC, Clarendon County, SC, Colleton County, SC, Darlington County, SC, Dillon County, SC, Dorchester County, SC, Edgefield County, SC, Fairfield County, SC, Florence County, SC, Georgetown County, SC, Greenville County, SC, Greenwood County, SC, Horry County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, Marlboro County, SC, McCormick County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Sumter County, SC, Union County, SC, Williamsburg County, SC, York County, SC

The radar

The Columbia radar (KCAE), 78 km from the middle of the area, began a volume at 20:14 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, 8.2 hours before the alert went out and 213 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: 106 J/kg
Mixed-layer CIN: -255 J/kg
Mixed-layer LCL: 1427 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 36 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
May 23, 11:46 AM EDT	Mesoscale Discussion	SPC	Anson, Bladen, Brunswick, Columbus, Craven, Cumberland and 17 more	2 hr
May 23, 1:07 PM EDT	Severe Thunderstorm Watch	SPC	Beaufort, Bladen, Brunswick, Carteret, Columbus, Craven and 27 more	10 hr
May 23, 2:27 PM EDT	Mesoscale Discussion	SPC	Beaufort, Bladen, Brunswick, Carteret, Clay, Columbus and 21 more	93 min
May 23, 2:56 PM EDT	Severe Thunderstorm Watch	SPC	Cleveland, Henderson, Jackson, Macon, Polk, Rutherford and 1 more	6 hr
May 23, 7:08 PM EDT	Mesoscale Discussion	SPC	Bladen, Brunswick, Cleveland, Columbus, Henderson, New Hanover and 5 more	97 min

Nearby

Mesoscale Discussions in South Carolina, 2014 Mesoscale Discussions in North Carolina, 2014 Every mesoscale discussion in 2014

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.