Alert archive / South Carolina / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 76, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Aug 20, 2026, 8:12 PM EDT for Allendale County, Hampton County, South Carolina; Screven County, Georgia. It was in force for 48 min. 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 20, 2026, 8:12 PM EDT (00:12 UTC)
- Expired
- Aug 20, 2026, 9:00 PM EDT
- In force
- 48 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Screven County, GA, Allendale County, SC, Hampton County, SC
The radar
The Charleston,SC radar (KCLX), 37 km from the middle of the area, began a volume at 00:11 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 00:00Z, 0.2 hours before the alert went out and 297 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
- 3363 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 1521 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 20, 8:03 PM EDT, 9 minutes before
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</html>The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 8:03 PM EDT | Special Weather Statement | CHS | Allendale | 27 min |
| Aug 21, 2:04 AM EDT | Heat Advisory | CHS | Beaufort, Berkeley, Charleston, Colleton, Jasper | 17 hr |
| Aug 21, 1:02 PM EDT | Special Weather Statement | CHS | Allendale | 28 min |
| Aug 21, 5:53 PM EDT | Severe Thunderstorm Warning | CHS | Allendale, Hampton | 55 min |
| Aug 21, 6:38 PM EDT | Special Weather Statement | CHS | Dorchester | 37 min |
| Aug 21, 6:46 PM EDT | Special Weather Statement | CHS | Hampton | 29 min |
| Aug 21, 7:40 PM EDT | Special Weather Statement | CHS | Berkeley | 35 min |
| Aug 21, 7:57 PM EDT | Special Weather Statement | CHS | Colleton | 18 min |
| Aug 20, 9:14 PM EDT | Special Weather Statement | CHS | Screven | 31 min |
| Aug 21, 1:57 PM EDT | Special Weather Statement | CHS | Screven | 18 min |
| Aug 21, 2:10 PM EDT | Special Weather Statement | CHS | Screven | 35 min |
| Aug 21, 5:24 PM EDT | Severe Thunderstorm Warning | CHS | Jenkins | 66 min |
| Aug 21, 5:46 PM EDT | Severe Thunderstorm Warning | CHS | Bulloch, Candler, Evans, Jenkins, Tattnall | 59 min |
| Aug 21, 6:17 PM EDT | Severe Thunderstorm Warning | CHS | Bulloch, Jenkins, Screven | 31 min |
| Aug 21, 6:35 PM EDT | Special Weather Statement | CHS | Bulloch, Candler | 25 min |
| Aug 21, 6:48 PM EDT | Special Weather Statement | CHS | Screven | 27 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2026Severe Thunderstorm Warnings in Georgia, 2026Every severe thunderstorm warning in 2026
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.