Alert archive / North Carolina / Mesoscale Discussions in 2008
Mesoscale Discussion 2293
The Storm Prediction Center issued this mesoscale discussion at Sep 26, 2008, 12:27 PM EDT for 24 counties in North Carolina; 8 counties in Virginia. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Sep 26, 2008, 12:27 PM EDT (16:27 UTC)
- Expired
- Sep 26, 2008, 2:00 PM EDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 32 counties
Bertie County, NC, Chatham County, NC, Chowan County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Gates County, NC, Granville County, NC, Greene County, NC, Halifax County, NC, Hertford County, NC, Johnston County, NC, Martin County, NC, Nash County, NC, Northampton County, NC, Orange County, NC, Perquimans County, NC, Person County, NC, Pitt County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Wayne County, NC, Wilson County, NC, Brunswick County, VA, City of Emporia, VA, City of Franklin, VA, City of Suffolk, VA, Greensville County, VA, Mecklenburg County, VA, Southampton County, VA, Sussex County, VA
The radar
The Raleigh/Durham radar (KRAX), 62 km from the middle of the area, began a volume at 16:29 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
Newport, NC (KMHX), launched 12:00Z, 4.5 hours before the alert went out and 168 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
- 1037 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 543 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.3
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 |
|---|---|---|---|---|
| Sep 25, 10:37 PM EDT | Mesoscale Discussion | SPC | Beaufort, Bertie, Camden, Carteret, Chowan, Craven and 13 more | 113 min |
| Sep 26, 2:34 AM EDT | Mesoscale Discussion | SPC | Beaufort, Bertie, Camden, Carteret, Chowan, Craven and 13 more | 86 min |
Nearby
Mesoscale Discussions in North Carolina, 2008Mesoscale Discussions in Virginia, 2008Every mesoscale discussion in 2008
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.