Alert archive / South Carolina / Mesoscale Discussions in 2020
Mesoscale Discussion 276
The Storm Prediction Center issued this mesoscale discussion at Mar 31, 2020, 12:20 PM EDT for 10 counties in Georgia; 13 counties in South Carolina. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Mar 31, 2020, 12:20 PM EDT (16:20 UTC)
- Expired
- Mar 31, 2020, 1:45 PM EDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 23 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, Aiken County, SC, Barnwell County, SC, Calhoun County, SC, Clarendon County, SC, Edgefield County, SC, Greenwood County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC
The radar
The Columbia radar (KCAE), 73 km from the middle of the area, began a volume at 16:19 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, 4.3 hours before the alert went out and 198 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2897 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 189 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 9:51 AM EDT | Tornado Watch | SPC | Baker, Baldwin, Ben Hill, Bibb, Bleckley, Butts and 67 more | 6 hr |
| Mar 31, 11:42 AM EDT | Mesoscale Discussion | SPC | Baker, Calhoun, Clay, Early, Miller, Randolph and 1 more | 93 min |
| Mar 31, 1:09 PM EDT | Mesoscale Discussion | SPC | Atkinson, Baker, Ben Hill, Berrien, Brooks, Calhoun and 28 more | 96 min |
| Mar 31, 2:22 PM EDT | Tornado Watch | SPC | Appling, Atkinson, Bacon, Berrien, Brantley, Brooks and 32 more | 6 hr |
| Mar 31, 4:40 PM EDT | Mesoscale Discussion | SPC | Camden, Charlton, Echols | 65 min |
Nearby
Mesoscale Discussions in South Carolina, 2020Mesoscale Discussions in Georgia, 2020Every 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.