Alert archive / South Carolina / Mesoscale Discussions in 2013
Mesoscale Discussion 235
The Storm Prediction Center issued this mesoscale discussion at Feb 26, 2013, 8:44 AM EST for Bulloch County, Effingham County, Screven County, Georgia; 4 counties in North Carolina; 15 counties in South Carolina. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 26, 2013, 8:44 AM EST (13:44 UTC)
- Expired
- Feb 26, 2013, 11:15 AM EST
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 22 counties
Bulloch County, GA, Effingham County, GA, Screven County, GA, Brunswick County, NC, Columbus County, NC, New Hanover County, NC, Pender County, NC, Allendale County, SC, Bamberg County, SC, Beaufort County, SC, Berkeley County, SC, Charleston County, SC, Clarendon County, SC, Colleton County, SC, Dorchester County, SC, Georgetown County, SC, Hampton County, SC, Horry County, SC, Jasper County, SC, Marion County, SC, Orangeburg County, SC, Williamsburg County, SC
The radar
The Wilmington radar (KLTX), 136 km from the middle of the area, began a volume at 13:44 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 12:00Z, 1.7 hours before the alert went out and 54 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
- 97 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 434 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 361 m²/s²
- 0-3 km storm-relative helicity
- 533 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 26, 12:59 AM EST | Tornado Watch | SPC | Berrien, Brooks, Cook, Decatur, Grady, Lanier and 3 more | 8 hr |
| Feb 26, 3:51 AM EST | Mesoscale Discussion | SPC | Decatur, Seminole | 114 min |
| Feb 26, 6:19 AM EST | Mesoscale Discussion | SPC | Brantley, Camden, Charlton, Clinch, Glynn, Ware | 116 min |
| Feb 26, 6:49 AM EST | Tornado Watch | SPC | Brantley, Bryan, Camden, Charlton, Chatham, Clinch and 8 more | 8 hr |
| Feb 26, 11:38 AM EST | Mesoscale Discussion | SPC | Bryan, Bulloch, Burke, Camden, Candler, Chatham and 11 more | 67 min |
| Feb 26, 6:54 AM EST | Mesoscale Discussion | SPC | Alleghany, Forsyth, Rockingham, Stokes, Surry, Wilkes and 1 more | 4 hr |
| Feb 26, 2:44 PM EST | Mesoscale Discussion | SPC | Bladen, Brunswick, Columbus, New Hanover, Pender | 91 min |
| Feb 26, 6:17 PM EST | Mesoscale Discussion | SPC | Beaufort, Bladen, Brunswick, Columbus, Craven, Cumberland and 11 more | 118 min |
Nearby
Mesoscale Discussions in South Carolina, 2013Mesoscale Discussions in North Carolina, 2013Mesoscale Discussions in Georgia, 2013Every mesoscale discussion in 2013
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.