Alert archive / North Carolina / Mesoscale Discussions in 2012
Mesoscale Discussion 1568
The Storm Prediction Center issued this mesoscale discussion at Jul 24, 2012, 1:12 PM EDT for 43 counties in North Carolina; 9 counties in South Carolina; 10 counties in Tennessee. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Jul 24, 2012, 1:12 PM EDT (17:12 UTC)
- Expired
- Jul 24, 2012, 2:45 PM EDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 62 counties
Alamance County, NC, Alexander County, NC, Anson County, NC, Avery County, NC, Buncombe County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Catawba County, NC, Chatham County, NC, Cleveland County, NC, Davidson County, NC, Davie County, NC, Forsyth County, NC, Gaston County, NC, Guilford County, NC, Haywood County, NC, Henderson County, NC, Iredell County, NC, Jackson County, NC, Lee County, NC, Lincoln County, NC, Macon County, NC, Madison County, NC, McDowell County, NC, Mecklenburg County, NC, Mitchell County, NC, Montgomery County, NC, Moore County, NC, Orange County, NC, Polk County, NC, Randolph County, NC, Richmond County, NC, Rowan County, NC, Rutherford County, NC, Stanly County, NC, Swain County, NC, Transylvania County, NC, Union County, NC, Watauga County, NC, Wilkes County, NC, Yadkin County, NC, Yancey County, NC, Cherokee County, SC, Chester County, SC, Greenville County, SC, Lancaster County, SC, Laurens County, SC, Pickens County, SC, Spartanburg County, SC, Union County, SC, York County, SC, Carter County, TN, Cocke County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hawkins County, TN, Jefferson County, TN, Sevier County, TN, Unicoi County, TN, Washington County, TN
The radar
The Greer radar (KGSP), 98 km from the middle of the area, began a volume at 17:15 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 5.2 hours before the alert went out and 175 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
- 1441 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1104 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 205 m²/s²
- 0-3 km storm-relative helicity
- 197 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.7
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 |
|---|---|---|---|---|
| Jul 24, 1:08 PM EDT | Severe Thunderstorm Watch | SPC | Alleghany, Ashe, Caswell, Rockingham, Stokes, Surry and 3 more | 6 hr |
| Jul 24, 1:42 PM EDT | Mesoscale Discussion | SPC | Bertie, Camden, Chowan, Currituck, Gates, Halifax and 8 more | 2 hr |
| Jul 24, 2:36 PM EDT | Severe Thunderstorm Watch | SPC | Alamance, Alexander, Anson, Avery, Buncombe, Burke and 53 more | 5 hr |
| Jul 24, 3:46 PM EDT | Mesoscale Discussion | SPC | Beaufort, Bertie, Bladen, Brunswick, Camden, Carteret and 40 more | 89 min |
| Jul 24, 4:24 PM EDT | Severe Thunderstorm Watch | SPC | Beaufort, Bertie, Bladen, Brunswick, Camden, Carteret and 24 more | 4 hr |
| Jul 24, 6:46 PM EDT | Mesoscale Discussion | SPC | Calhoun, Clarendon, Lee, Lexington, Richland, Saluda and 1 more | 89 min |
| Jul 24, 3:25 PM EDT | Mesoscale Discussion | SPC | Carter, Claiborne, Grainger, Greene, Hamblen, Hancock and 3 more | 95 min |
Nearby
Mesoscale Discussions in North Carolina, 2012Mesoscale Discussions in Tennessee, 2012Mesoscale Discussions in South Carolina, 2012Every mesoscale discussion in 2012
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.