Alert archive / South Carolina / Mesoscale Discussions in 2003
Mesoscale Discussion 297
The Storm Prediction Center issued this mesoscale discussion at Mar 19, 2003, 8:58 PM EST for 12 counties in Georgia; 25 counties in South Carolina. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 19, 2003, 8:58 PM EST (01:58 UTC)
- Expired
- Mar 20, 2003, 12:00 AM EST
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
All 37 counties
Burke County, GA, Columbia County, GA, Glascock County, GA, Jefferson County, GA, Jenkins County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Taliaferro County, GA, Warren County, GA, Washington County, GA, Wilkes County, GA, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Chester County, SC, Chesterfield County, SC, Clarendon County, SC, Darlington County, SC, Edgefield County, SC, Fairfield County, SC, Florence County, SC, Greenwood County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lee County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC, Williamsburg County, SC
The radar
The Columbia radar (KCAE), 58 km from the middle of the area, began a volume at 01:59 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 00:00Z, 2.0 hours before the alert went out and 159 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
- 7 J/kg
- Mixed-layer CIN
- -255 J/kg
- Mixed-layer LCL
- 516 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 257 m²/s²
- 0-3 km storm-relative helicity
- 364 m²/s²
- Significant tornado parameter
- 0.0
- 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 |
|---|---|---|---|---|
| Mar 19, 7:04 PM EST | Mesoscale Discussion | SPC | Appling, Bacon, Brantley, Bryan, Bulloch, Camden and 15 more | 116 min |
| Mar 19, 7:15 PM EST | Tornado Watch | SPC | Appling, Bacon, Bryan, Bulloch, Candler, Chatham and 11 more | 4 hr |
| Mar 19, 9:41 PM EST | Mesoscale Discussion | SPC | Clay, Early | 3 hr |
| Mar 19, 10:25 PM EST | Tornado Watch | SPC | Baker, Baldwin, Bibb, Calhoun, Chattahoochee, Clay and 30 more | 6 hr |
| Mar 19, 11:16 PM EST | Mesoscale Discussion | SPC | Baldwin, Banks, Barrow, Bartow, Butts, Carroll and 50 more | 2 hr |
| Mar 20, 12:20 AM EST | Severe Thunderstorm Watch | SPC | Banks, Barrow, Butts, Clarke, Clayton, Cobb and 38 more | 4 hr |
| Mar 20, 12:52 AM EST | Mesoscale Discussion | SPC | Atkinson, Bacon, Baker, Ben Hill, Berrien, Bibb and 52 more | 2 hr |
| Mar 20, 3:06 AM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 46 more | 54 min |
| Mar 20, 3:40 AM EST | Tornado Watch | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 50 more | 5 hr |
| Mar 20, 6:12 AM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Ben Hill, Berrien, Brooks and 40 more | 2 hr |
| Mar 20, 8:40 AM EST | Tornado Watch | SPC | Appling, Atkinson, Bacon, Berrien, Brantley, Brooks and 20 more | 6 hr |
| Mar 20, 11:09 AM EST | Mesoscale Discussion | SPC | Atkinson, Berrien, Brantley, Brooks, Clinch, Colquitt and 6 more | 2 hr |
| Mar 20, 1:33 PM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Berrien, Brantley, Brooks and 10 more | 117 min |
| Mar 20, 2:35 PM EST | Tornado Watch | SPC | Appling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 34 more | 6 hr |
| Mar 20, 4:21 PM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 36 more | 114 min |
| Mar 20, 6:57 PM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 37 more | 2 hr |
| Mar 20, 2:16 AM EST | Mesoscale Discussion | SPC | Georgetown, Horry, Marion, Williamsburg | 119 min |
| Mar 20, 5:48 AM EST | Mesoscale Discussion | SPC | Calhoun, Clarendon, Darlington, Dillon, Florence, Horry and 5 more | 117 min |
| Mar 20, 10:10 AM EST | Tornado Watch | SPC | Georgetown, Horry | 5 hr |
| Mar 20, 10:40 AM EST | Mesoscale Discussion | SPC | Horry | 2 hr |
Nearby
Mesoscale Discussions in South Carolina, 2003Mesoscale Discussions in Georgia, 2003Every mesoscale discussion in 2003
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.