Alert archive / Georgia / Mesoscale Discussions in 2020
Mesoscale Discussion 48
The Storm Prediction Center issued this mesoscale discussion at Jan 11, 2020, 8:40 PM EST for 4 states. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- Jan 11, 2020, 8:40 PM EST (01:40 UTC)
- Expired
- Jan 11, 2020, 10:15 PM EST
- In force
- 95 min
- Issued by
- the Storm Prediction Center
All 82 counties
Gadsden County, FL, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Bleckley County, GA, Burke County, GA, Candler County, GA, Coffee County, GA, Colquitt County, GA, Columbia County, GA, Cook County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dougherty County, GA, Emanuel County, GA, Glascock County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Laurens County, GA, Lincoln County, GA, McDuffie County, GA, Mitchell County, GA, Montgomery County, GA, Pulaski County, GA, Richmond County, GA, Telfair County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Turner County, GA, Warren County, GA, Washington County, GA, Wheeler County, GA, Wilcox County, GA, Wilkinson County, GA, Worth County, GA, Alexander County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Catawba County, NC, Cleveland County, NC, Davidson County, NC, Davie County, NC, Forsyth County, NC, Gaston County, NC, Iredell County, NC, Lincoln County, NC, Mecklenburg County, NC, Polk County, NC, Rowan County, NC, Rutherford County, NC, Stanly County, NC, Union County, NC, Wilkes County, NC, Yadkin County, NC, Abbeville County, SC, Aiken County, SC, Barnwell County, SC, Cherokee County, SC, Chester County, SC, Edgefield County, SC, Fairfield County, SC, Greenville County, SC, Greenwood County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Union County, SC, York County, SC
The radar
The Robins AFB radar (KJGX), 113 km from the middle of the area, began a volume at 01:40 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 00:00Z, 1.7 hours before the alert went out and 238 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
- 804 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 504 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 264 m²/s²
- 0-3 km storm-relative helicity
- 330 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 6.5
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 |
|---|---|---|---|---|
| Jan 11, 10:59 PM EST | Mesoscale Discussion | SPC | Richmond | 91 min |
| Jan 11, 7:37 PM EST | Severe Thunderstorm Watch | SPC | Alleghany, Ashe, Caswell, Rockingham, Stokes, Surry and 3 more | 5 hr |
| Jan 11, 9:35 PM EST | Severe Thunderstorm Watch | SPC | Alamance, Anson, Bladen, Chatham, Cumberland, Davidson and 19 more | 4 hr |
| Jan 11, 11:25 PM EST | Severe Thunderstorm Watch | SPC | Bertie, Camden, Chowan, Edgecombe, Gates, Greene and 13 more | 4 hr |
| Jan 12, 1:49 AM EST | Mesoscale Discussion | SPC | Beaufort, Bladen, Brunswick, Columbus, Craven, Duplin and 10 more | 86 min |
Nearby
Mesoscale Discussions in Georgia, 2020Mesoscale Discussions in North Carolina, 2020Mesoscale Discussions in South Carolina, 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.