Alert archive / South Carolina / Mesoscale Discussions in 2004
Mesoscale Discussion 2265
The Storm Prediction Center issued this mesoscale discussion at Sep 26, 2004, 9:53 PM EDT for 7 counties in South Carolina. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 26, 2004, 9:53 PM EDT (01:53 UTC)
- Expired
- Sep 27, 2004, 12:00 AM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
Counties Beaufort County, SC, Berkeley County, SC, Charleston County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 96 km from the middle of the area, began a volume at 01:54 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, 1.9 hours before the alert went out and 9 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
- 813 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 454 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 173 m²/s²
- 0-3 km storm-relative helicity
- 223 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 |
|---|---|---|---|---|
| Sep 27, 12:35 AM EDT | Tornado Watch | SPC | Allendale, Bamberg, Barnwell, Beaufort, Berkeley, Charleston and 4 more | 8 hr |
| Sep 27, 4:47 AM EDT | Mesoscale Discussion | SPC | Beaufort, Jasper | 118 min |
| Sep 27, 7:38 AM EDT | Mesoscale Discussion | SPC | Beaufort, Berkeley, Charleston, Colleton, Dorchester, Hampton and 1 more | 2 hr |
| Sep 27, 10:27 AM EDT | Mesoscale Discussion | SPC | Aiken, Allendale, Bamberg, Barnwell, Beaufort, Berkeley and 25 more | 2 hr |
| Sep 27, 10:40 AM EDT | Tornado Watch | SPC | Aiken, Allendale, Bamberg, Barnwell, Beaufort, Berkeley and 22 more | 6 hr |
| Sep 27, 3:24 PM EDT | Mesoscale Discussion | SPC | Bamberg, Berkeley, Calhoun, Chesterfield, Clarendon, Colleton and 15 more | 96 min |
| Sep 27, 3:50 PM EDT | Tornado Watch | SPC | Bamberg, Berkeley, Calhoun, Charleston, Chesterfield, Clarendon and 17 more | 6 hr |
| Sep 27, 6:05 PM EDT | Mesoscale Discussion | SPC | Anderson, Cherokee, Greenville, Oconee, Pickens, Spartanburg | 115 min |
| Sep 27, 6:31 PM EDT | Mesoscale Discussion | SPC | Berkeley, Calhoun, Chester, Chesterfield, Clarendon, Darlington and 16 more | 119 min |
Nearby
Mesoscale Discussions in South Carolina, 2004Every mesoscale discussion in 2004
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.