Alert archive / North Carolina / Mesoscale Discussions in 2006
Mesoscale Discussion 613
The Storm Prediction Center issued this mesoscale discussion at Apr 22, 2006, 6:35 AM EDT for 23 counties in North Carolina; 11 counties in Virginia. It was in force for 115 min.
The area
The outline as issued.
The facts
- Issued
- Apr 22, 2006, 6:35 AM EDT (10:35 UTC)
- Expired
- Apr 22, 2006, 8:30 AM EDT
- In force
- 115 min
- Issued by
- the Storm Prediction Center
All 34 counties
Alamance County, NC, Anson County, NC, Caswell County, NC, Chatham County, NC, Durham County, NC, Franklin County, NC, Granville County, NC, Guilford County, NC, Halifax County, NC, Harnett County, NC, Johnston County, NC, Lee County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Orange County, NC, Person County, NC, Randolph County, NC, Rockingham County, NC, Stanly County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Brunswick County, VA, Charlotte County, VA, City of Danville, VA, City of Martinsville, VA, Halifax County, VA, Henry County, VA, Lunenburg County, VA, Mecklenburg County, VA, Nottoway County, VA, Pittsylvania County, VA, Prince Edward County, VA
The radar
The Raleigh/Durham radar (KRAX), 72 km from the middle of the area, began a volume at 10:37 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 00:00Z, 10.6 hours before the alert went out and 72 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
- 348 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 1121 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 320 m²/s²
- Significant tornado parameter
- 0.3
- 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 |
|---|---|---|---|---|
| Apr 22, 8:28 AM EDT | Mesoscale Discussion | SPC | Anson, Bladen, Chatham, Columbus, Cumberland, Harnett and 9 more | 92 min |
| Apr 22, 10:29 AM EDT | Severe Thunderstorm Watch | SPC | Anson, Beaufort, Bertie, Bladen, Brunswick, Camden and 43 more | 8 hr |
| Apr 22, 1:07 PM EDT | Mesoscale Discussion | SPC | Alamance, Anson, Beaufort, Bertie, Bladen, Brunswick and 52 more | 83 min |
| Apr 22, 5:58 PM EDT | Mesoscale Discussion | SPC | Bladen, Brunswick, Chatham, Columbus, Craven, Cumberland and 24 more | 2 hr |
Nearby
Mesoscale Discussions in North Carolina, 2006Mesoscale Discussions in Virginia, 2006Every mesoscale discussion in 2006
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.