Alert archive / South Carolina / Mesoscale Discussions in 2020

Mesoscale Discussion 227

March 24, 202016 counties in Georgia; 23 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Mar 24, 2020, 1:19 PM EDT for 16 counties in Georgia; 23 counties in South Carolina. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: Mar 24, 2020, 1:19 PM EDT (17:19 UTC)
Expired: Mar 24, 2020, 3:15 PM EDT
In force: 116 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

All 39 counties

Clarke County, GA, Columbia County, GA, Elbert County, GA, Franklin County, GA, Greene County, GA, Hart County, GA, Jackson County, GA, Lincoln County, GA, Madison County, GA, McDuffie County, GA, Morgan County, GA, Oconee County, GA, Oglethorpe County, GA, Taliaferro County, GA, Warren County, GA, Wilkes County, GA, Abbeville County, SC, Aiken County, SC, Anderson County, SC, Calhoun County, SC, Chester County, SC, Clarendon County, SC, Darlington County, SC, Edgefield County, SC, Fairfield County, SC, Florence County, SC, Greenwood County, SC, Kershaw County, SC, Laurens County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, McCormick County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC, Union County, SC, Williamsburg County, SC

The radar

The Columbia radar (KCAE), 78 km from the middle of the area, began a volume at 17:20 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.3 hours before the alert went out and 243 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: 50 J/kg
Mixed-layer CIN: -168 J/kg
Mixed-layer LCL: 667 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 112 m²/s²
0-3 km storm-relative helicity: 158 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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Nearby

Mesoscale Discussions in South Carolina, 2020 Mesoscale Discussions in Georgia, 2020 Every mesoscale discussion in 2020

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.