Alert archive / South Carolina / Mesoscale Discussions in 2018
Mesoscale Discussion 103
The Storm Prediction Center issued this mesoscale discussion at Mar 1, 2018, 2:05 PM EST for 10 counties in Georgia; 7 counties in North Carolina; 31 counties in South Carolina. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 1, 2018, 2:05 PM EST (19:05 UTC)
- Expired
- Mar 1, 2018, 4:30 PM EST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 48 counties
Burke County, GA, Columbia County, GA, Glascock County, GA, Jefferson County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Taliaferro County, GA, Warren County, GA, Wilkes County, GA, Anson County, NC, Columbus County, NC, Hoke County, NC, Richmond County, NC, Robeson County, NC, Scotland County, NC, Union County, NC, Abbeville County, SC, Aiken County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Chester County, SC, Chesterfield County, SC, Clarendon County, SC, Darlington County, SC, Dillon County, SC, Edgefield County, SC, Fairfield County, SC, Florence 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, Sumter County, SC, Union County, SC, Williamsburg County, SC, York County, SC
The radar
The Columbia radar (KCAE), 18 km from the middle of the area, began a volume at 19:07 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, 7.1 hours before the alert went out and 159 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.
- Mixed-layer CAPE
- 33 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 756 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 231 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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Mesoscale Discussions in South Carolina, 2018Mesoscale Discussions in Georgia, 2018Mesoscale Discussions in North Carolina, 2018Every mesoscale discussion in 2018
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.