Alert archive / South Carolina / Mesoscale Discussions in 2014

Mesoscale Discussion 876

June 7, 201421 counties in Georgia; 38 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Jun 7, 2014, 12:42 PM EDT for 21 counties in Georgia; 38 counties in South Carolina. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Jun 7, 2014, 12:42 PM EDT (16:42 UTC)
Expired
Jun 7, 2014, 3:15 PM EDT
In force
3 hr
Issued by
the Storm Prediction Center
Chance of a watch
5%
All 59 counties

Banks County, GA, Burke County, GA, Columbia County, GA, Effingham County, GA, Elbert County, GA, Franklin County, GA, Glascock County, GA, Habersham County, GA, Hart County, GA, Jefferson County, GA, Jenkins County, GA, Lincoln County, GA, Madison County, GA, McDuffie County, GA, Oglethorpe County, GA, Richmond County, GA, Screven County, GA, Stephens County, GA, Taliaferro County, GA, Warren County, GA, Wilkes County, GA, Abbeville County, SC, Aiken County, SC, Allendale County, SC, Anderson County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Cherokee County, SC, Chester County, SC, Clarendon County, SC, Colleton County, SC, Dorchester County, SC, Edgefield County, SC, Fairfield County, SC, Florence County, SC, Greenville County, SC, Greenwood County, SC, Hampton County, SC, Jasper County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lee County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Oconee County, SC, Orangeburg County, SC, Pickens County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Sumter County, SC, Union County, SC, Williamsburg County, SC

The radar

The Columbia radar (KCAE), 35 km from the middle of the area, began a volume at 16:43 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

Charleston AFB, SC (KCHS), launched 12:00Z, 4.7 hours before the alert went out and 141 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, Charleston AFB, SC at 12:00Z on 2014-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 260 joules per kilogram.LCLLFCEL10008507005003002001001 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, Charleston AFB, SC at 12:00Z on 2014-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 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
260 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
697 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
59 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.

IssuedProductOfficeCountiesLasted
Jun 6, 9:56 PM EDTMesoscale DiscussionSPCBrooks, Decatur, Grady, Lowndes, Seminole, Thomas94 min

Nearby

Mesoscale Discussions in South Carolina, 2014Mesoscale Discussions in Georgia, 2014Every 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.