Alert archive / North Carolina / Mesoscale Discussions in 2014
Mesoscale Discussion 145
The Storm Prediction Center issued this mesoscale discussion at Feb 21, 2014, 1:14 PM EST for 25 counties in North Carolina. It was in force for 61 min.
The area
The outline as issued.
The facts
- Issued
- Feb 21, 2014, 1:14 PM EST (18:14 UTC)
- Expired
- Feb 21, 2014, 2:15 PM EST
- In force
- 61 min
- Issued by
- the Storm Prediction Center
All 25 counties
Beaufort County, NC, Bertie County, NC, Brunswick County, NC, Camden County, NC, Carteret County, NC, Chowan County, NC, Craven County, NC, Dare County, NC, Duplin County, NC, Greene County, NC, Hyde County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, New Hanover County, NC, Onslow County, NC, Pamlico County, NC, Pasquotank County, NC, Pender County, NC, Perquimans County, NC, Pitt County, NC, Sampson County, NC, Tyrrell County, NC, Washington County, NC, Wayne County, NC
The radar
The Morehead City radar (KMHX), 79 km from the middle of the area, began a volume at 18:14 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, 6.2 hours before the alert went out and 78 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
- 418 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 602 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 182 m²/s²
- 0-3 km storm-relative helicity
- 209 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
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 |
|---|---|---|---|---|
| Feb 20, 10:29 PM EST | Mesoscale Discussion | SPC | Cherokee, Clay, Graham, Swain | 61 min |
| Feb 20, 10:47 PM EST | Tornado Watch | SPC | Cherokee, Clay, Graham, Haywood, Jackson, Macon and 2 more | 6 hr |
| Feb 21, 3:11 AM EST | Mesoscale Discussion | SPC | Alexander, Alleghany, Ashe, Avery, Buncombe, Burke and 14 more | 94 min |
| Feb 21, 8:57 AM EST | Mesoscale Discussion | SPC | Alamance, Bladen, Caswell, Chatham, Columbus, Cumberland and 22 more | 63 min |
| Feb 21, 10:02 AM EST | Tornado Watch | SPC | Alamance, Bladen, Brunswick, Chatham, Columbus, Cumberland and 24 more | 6 hr |
| Feb 21, 10:39 AM EST | Tornado Watch | SPC | Bertie, Camden, Chowan, Currituck, Gates, Hertford and 3 more | 5 hr |
| Feb 21, 11:05 AM EST | Mesoscale Discussion | SPC | Beaufort, Bertie, Bladen, Carteret, Chowan, Columbus and 27 more | 55 min |
| Feb 21, 12:15 PM EST | Tornado Watch | SPC | Beaufort, Carteret, Craven, Dare, Duplin, Greene and 9 more | 5 hr |
Nearby
Mesoscale Discussions in North Carolina, 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.