Alert archive / North Carolina / Mesoscale Discussions in 2011
Mesoscale Discussion 1953
The Storm Prediction Center issued this mesoscale discussion at Aug 12, 2011, 1:46 PM EDT for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 12, 2011, 1:46 PM EDT (17:46 UTC)
- Expired
- Aug 12, 2011, 4:15 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 152 counties
Banks County, GA, Bryan County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Chatham County, GA, Clarke County, GA, Columbia County, GA, Effingham County, GA, Elbert County, GA, Emanuel County, GA, Evans County, GA, Franklin County, GA, Glascock County, GA, Greene County, GA, Habersham County, GA, Hall County, GA, Hancock County, GA, Hart County, GA, Jackson County, GA, Jefferson County, GA, Jenkins County, GA, Liberty County, GA, Lincoln County, GA, Lumpkin County, GA, Madison County, GA, McDuffie County, GA, Oconee County, GA, Oglethorpe County, GA, Rabun County, GA, Richmond County, GA, Screven County, GA, Stephens County, GA, Taliaferro County, GA, Towns County, GA, Warren County, GA, White County, GA, Wilkes County, GA, Alexander County, NC, Anson County, NC, Avery County, NC, Bladen County, NC, Brunswick County, NC, Buncombe County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Catawba County, NC, Chatham County, NC, Clay County, NC, Cleveland County, NC, Columbus County, NC, Craven County, NC, Cumberland County, NC, Davidson County, NC, Davie County, NC, Duplin County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Gaston County, NC, Greene County, NC, Harnett County, NC, Haywood County, NC, Henderson County, NC, Hoke County, NC, Iredell County, NC, Jackson County, NC, Johnston County, NC, Jones County, NC, Lee County, NC, Lenoir County, NC, Lincoln County, NC, Macon County, NC, Madison County, NC, Martin County, NC, McDowell County, NC, Mecklenburg County, NC, Mitchell County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Onslow County, NC, Orange County, NC, Pender County, NC, Pitt County, NC, Polk County, NC, Randolph County, NC, Richmond County, NC, Robeson County, NC, Rowan County, NC, Rutherford County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Swain County, NC, Transylvania County, NC, Union County, NC, Wake County, NC, Watauga County, NC, Wayne County, NC, Wilkes County, NC, Wilson County, NC, Yancey County, NC, 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, Chesterfield County, SC, Clarendon County, SC, Colleton County, SC, Darlington County, SC, Dillon County, SC, Dorchester County, SC, Edgefield County, SC, Fairfield County, SC, Florence County, SC, Georgetown County, SC, Greenville County, SC, Greenwood County, SC, Hampton County, SC, Horry County, SC, Jasper 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, 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, York County, SC, Carter County, TN, Unicoi County, TN
The radar
The Columbia radar (KCAE), 122 km from the middle of the area, began a volume at 17:49 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 5.8 hours before the alert went out and 156 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
- 185 J/kg
- Mixed-layer CIN
- -156 J/kg
- Mixed-layer LCL
- 1130 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 3:05 PM EDT | Mesoscale Discussion | SPC | Atkinson, Baker, Ben Hill, Berrien, Bibb, Bleckley and 57 more | 115 min |
Nearby
Mesoscale Discussions in North Carolina, 2011Mesoscale Discussions in South Carolina, 2011Mesoscale Discussions in Georgia, 2011Every mesoscale discussion in 2011
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.