Alert archive / North Carolina / Mesoscale Discussions in 2012
Mesoscale Discussion 1442
The Storm Prediction Center issued this mesoscale discussion at Jul 9, 2012, 1:01 PM EDT for 4 states. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Jul 9, 2012, 1:01 PM EDT (17:01 UTC)
- Expired
- Jul 9, 2012, 2:30 PM EDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 60 counties
Catoosa County, GA, Dade County, GA, Fannin County, GA, Gilmer County, GA, Gordon County, GA, Habersham County, GA, Lumpkin County, GA, Murray County, GA, Rabun County, GA, Stephens County, GA, Towns County, GA, Union County, GA, Walker County, GA, White County, GA, Whitfield County, GA, Alexander County, NC, Avery County, NC, Buncombe County, NC, Burke County, NC, Caldwell County, NC, Catawba County, NC, Cherokee County, NC, Clay County, NC, Cleveland County, NC, Gaston County, NC, Graham County, NC, Haywood County, NC, Henderson County, NC, Jackson County, NC, Lincoln County, NC, Macon County, NC, Madison County, NC, McDowell County, NC, Mitchell County, NC, Polk County, NC, Rutherford County, NC, Swain County, NC, Transylvania County, NC, Watauga County, NC, Wilkes County, NC, Yancey County, NC, Anderson County, SC, Cherokee County, SC, Greenville County, SC, Oconee County, SC, Pickens County, SC, Spartanburg County, SC, Union County, SC, York County, SC, Blount County, TN, Bradley County, TN, Carter County, TN, Cocke County, TN, Hamilton County, TN, Marion County, TN, McMinn County, TN, Monroe County, TN, Polk County, TN, Sevier County, TN, Unicoi County, TN
The radar
The Greer radar (KGSP), 70 km from the middle of the area, began a volume at 17:04 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, 5.0 hours before the alert went out and 265 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
- 1054 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 1186 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 9, 1:36 PM EDT | Mesoscale Discussion | SPC | Alamance, Beaufort, Bertie, Caswell, Chatham, Chowan and 35 more | 54 min |
| Jul 9, 2:59 PM EDT | Severe Thunderstorm Watch | SPC | Alamance, Beaufort, Bertie, Bladen, Camden, Carteret and 45 more | 7 hr |
| Jul 9, 3:19 PM EDT | Severe Thunderstorm Watch | SPC | Alleghany, Ashe, Caswell, Rockingham, Stokes, Surry and 3 more | 4 hr |
| Jul 9, 4:48 PM EDT | Mesoscale Discussion | SPC | Anson, Beaufort, Bertie, Bladen, Camden, Chowan and 39 more | 87 min |
| Jul 9, 5:53 PM EDT | Mesoscale Discussion | SPC | Alamance, Alleghany, Caswell, Davie, Forsyth, Guilford and 7 more | 97 min |
| Jul 9, 7:17 PM EDT | Mesoscale Discussion | SPC | Alamance, Beaufort, Bertie, Brunswick, Camden, Carteret and 25 more | 88 min |
Nearby
Mesoscale Discussions in North Carolina, 2012Mesoscale Discussions in Georgia, 2012Mesoscale Discussions in Tennessee, 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.