Alert archive / North Carolina / Mesoscale Discussions in 2011
Mesoscale Discussion 2338
The Storm Prediction Center issued this mesoscale discussion at Nov 16, 2011, 10:20 PM EST for 30 counties in North Carolina; 7 counties in South Carolina; 4 counties in Virginia. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Nov 16, 2011, 10:20 PM EST (03:20 UTC)
- Expired
- Nov 16, 2011, 11:15 PM EST
- In force
- 55 min
- Issued by
- the Storm Prediction Center
All 41 counties
Beaufort County, NC, Bertie County, NC, Bladen County, NC, Brunswick County, NC, Camden County, NC, Chowan County, NC, Columbus County, NC, Craven County, NC, Duplin County, NC, Edgecombe County, NC, Gates County, NC, Greene County, NC, Halifax County, NC, Hertford County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, Nash County, NC, New Hanover County, NC, Northampton County, NC, Onslow County, NC, Pamlico County, NC, Pasquotank County, NC, Pender County, NC, Perquimans County, NC, Pitt County, NC, Warren County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, Beaufort County, SC, Berkeley County, SC, Charleston County, SC, Colleton County, SC, Georgetown County, SC, Horry County, SC, Jasper County, SC, City of Chesapeake, VA, City of Franklin, VA, City of Suffolk, VA, City of Virginia Beach, VA
The radar
The Wilmington radar (KLTX), 47 km from the middle of the area, began a volume at 03:21 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
Charleston AFB, SC (KCHS), launched 00:00Z, 3.3 hours before the alert went out and 166 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
- 1172 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 683 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 195 m²/s²
- 0-3 km storm-relative helicity
- 199 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 7.9
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 |
|---|---|---|---|---|
| Nov 16, 7:23 PM EST | Mesoscale Discussion | SPC | Amelia, Brunswick, Charles City, Charlotte, Chesterfield, Cumberland and 36 more | 67 min |
Nearby
Mesoscale Discussions in North Carolina, 2011Mesoscale Discussions in South Carolina, 2011Mesoscale Discussions in Virginia, 2011Every mesoscale discussion in 2011
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.