Alert archive / North Carolina / Mesoscale Discussions in 2014
Mesoscale Discussion 357
The Storm Prediction Center issued this mesoscale discussion at Apr 15, 2014, 4:43 AM EDT for 27 counties in North Carolina; 6 counties in South Carolina; 4 counties in Virginia. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 15, 2014, 4:43 AM EDT (08:43 UTC)
- Expired
- Apr 15, 2014, 6:45 AM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 37 counties
Alamance County, NC, Anson County, NC, Bladen County, NC, Caswell County, NC, Chatham County, NC, Cumberland County, NC, Durham County, NC, Franklin County, NC, Granville County, NC, Guilford County, NC, Harnett County, NC, Hoke 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, Richmond County, NC, Robeson County, NC, Sampson County, NC, Scotland County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Chesterfield County, SC, Darlington County, SC, Dillon County, SC, Florence County, SC, Marion County, SC, Marlboro County, SC, City of Danville, VA, Halifax County, VA, Mecklenburg County, VA, Pittsylvania County, VA
The radar
The Raleigh/Durham radar (KRAX), 62 km from the middle of the area, began a volume at 08:45 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 00:00Z, 8.7 hours before the alert went out and 120 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1215 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 91 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 |
|---|---|---|---|---|
| Apr 15, 10:34 AM EDT | Mesoscale Discussion | SPC | Beaufort, Camden, Carteret, Chowan, Currituck, Dare and 7 more | 116 min |
| Apr 15, 5:00 PM EDT | Mesoscale Discussion | SPC | Beaufort, Bertie, Bladen, Brunswick, Carteret, Columbus and 24 more | 2 hr |
Nearby
Mesoscale Discussions in North Carolina, 2014Mesoscale Discussions in South Carolina, 2014Mesoscale Discussions in Virginia, 2014Every mesoscale discussion in 2014
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.