Alert archive / South Carolina / Flood Watches in 2024
Flood Watch 8, NWS Columbia, SC
NWS Columbia, SC issued this flood watch at Sep 25, 2024, 10:57 AM EDT for 15 counties in South Carolina; 5 counties in Georgia. It took effect at Sep 26, 2024, 8:00 AM EDT. It was in force for 25 hr.
The area
The counties it named.
The facts
- Issued
- Sep 25, 2024, 10:57 AM EDT (14:57 UTC)
- In effect from
- Sep 26, 2024, 8:00 AM EDT
- Expired
- Sep 27, 2024, 9:21 AM EDT
- In force
- 25 hr
- Issued by
- NWS Columbia, SC
- Flood severity
- None
Counties Burke County, GA, Columbia County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Aiken County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Chesterfield County, SC, Edgefield County, SC, Fairfield County, SC, Kershaw County, SC, Lancaster County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC
The radar
The Columbia radar (KCAE), 35 km from the middle of the area, began a volume at 15:00 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 3.0 hours before the alert went out and 285 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
- 543 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 905 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.4
What forecasters said that day
The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Columbia, SC wrote its last area forecast discussion before this flood watch went out at Sep 25, 6:51 AM EDT, 4 hours 6 minutes earlier.
Area forecast discussion, Sep 25, 6:51 AM EDT, 4 hours 6 minutes before
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</html>The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 25, 11:05 AM EDT | Tropical Storm Watch | CAE | Aiken, Bamberg, Barnwell, Calhoun, Edgefield, Lexington and 5 more | 6 hr |
| Sep 25, 5:22 PM EDT | Tropical Storm Warning | CAE | Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 12 more | 45 hr |
Nearby
Flood Watches in South Carolina, 2024Flood Watches in Georgia, 2024Every flood watch in 2024
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.