Alert archive / South Carolina / Flash Flood Warnings in 2025
Flash Flood Warning 15, NWS Columbia, SC
NWS Columbia, SC issued this flash flood warning at Aug 16, 2025, 12:54 PM EDT for Aiken County, Barnwell County, South Carolina. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 16, 2025, 12:54 PM EDT (16:54 UTC)
- Expired
- Aug 16, 2025, 3:00 PM EDT
- In force
- 2 hr
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Aiken County, SC, Barnwell County, SC
The radar
The Columbia radar (KCAE), 72 km from the middle of the area, began a volume at 16:56 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, 4.9 hours before the alert went out and 154 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
- 1744 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 805 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 8:43 PM EDT | Special Weather Statement | CAE | McCormick | 47 min |
| Aug 15, 9:37 PM EDT | Special Weather Statement | CAE | Lexington | 38 min |
| Aug 15, 10:33 PM EDT | Areal Flood Advisory | CAE | Edgefield, McCormick, Saluda | 4 hr |
| Aug 15, 10:50 PM EDT | Special Weather Statement | CAE | Richland | 40 min |
| Aug 15, 11:01 PM EDT | Areal Flood Advisory | CAE | Kershaw, Lexington, Richland, Sumter | 3 hr |
| Aug 15, 11:12 PM EDT | Areal Flood Advisory | CAE | Aiken, Edgefield, Saluda | 3 hr |
| Aug 15, 11:19 PM EDT | Flash Flood Warning | CAE | Lexington, Richland | 3 hr |
| Aug 16, 12:07 AM EDT | Areal Flood Advisory | CAE | Lexington | 3 hr |
| Aug 16, 12:38 PM EDT | Areal Flood Advisory | CAE | Aiken | 112 min |
| Aug 16, 1:07 PM EDT | Areal Flood Advisory | CAE | Edgefield | 113 min |
| Aug 16, 1:26 PM EDT | Flash Flood Warning | CAE | Edgefield, McCormick | 2 hr |
| Aug 16, 5:00 PM EDT | Areal Flood Advisory | CAE | Orangeburg | 60 min |
| Aug 15, 9:30 PM EDT | Special Weather Statement | CAE | Columbia, Lincoln, McDuffie, Richmond | 45 min |
| Aug 16, 2:06 PM EDT | Areal Flood Advisory | CAE | Burke, Columbia, Richmond | 114 min |
Nearby
Flash Flood Warnings in South Carolina, 2025Every flash flood warning in 2025
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.