Alert archive / South Carolina / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 102, NWS Columbia, SC

July 28, 2025Aiken County, Edgefield County, McCormick County, South Carolina; Columbia County, Georgia

NWS Columbia, SC issued this severe thunderstorm warning at Jul 28, 2025, 2:20 PM EDT for Aiken County, Edgefield County, McCormick County, South Carolina; Columbia County, Georgia. It was in force for 40 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: Jul 28, 2025, 2:20 PM EDT (18:20 UTC)
Expired: Jul 28, 2025, 3:00 PM EDT
In force: 40 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Columbia County, GA, Aiken County, SC, Edgefield County, SC, McCormick County, SC

The radar

The Columbia radar (KCAE), 90 km from the middle of the area, began a volume at 18:23 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, 6.3 hours before the alert went out and 230 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 983 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 964 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: 39 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 27, 8:06 PM EDT	Special Weather Statement	CAE	Lancaster	39 min
Jul 27, 9:16 PM EDT	Special Weather Statement	CAE	Kershaw	29 min
Jul 27, 9:37 PM EDT	Special Weather Statement	CAE	Chesterfield, Lancaster	53 min
Jul 27, 10:10 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield	50 min
Jul 28, 12:47 AM EDT	Heat Advisory	CAE	Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 12 more	43 hr
Jul 28, 1:59 PM EDT	Special Weather Statement	CAE	Edgefield	46 min
Jul 28, 4:19 PM EDT	Special Weather Statement	CAE	Barnwell	26 min
Jul 28, 5:55 PM EDT	Special Weather Statement	CAE	Lexington, Richland	35 min
Jul 28, 6:20 PM EDT	Areal Flood Advisory	CAE	Richland	94 min
Jul 28, 6:30 PM EDT	Special Weather Statement	CAE	Calhoun	45 min
Jul 28, 6:36 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Orangeburg, Richland	39 min
Jul 28, 3:06 PM EDT	Special Weather Statement	CAE	Burke	24 min
Jul 28, 3:39 PM EDT	Special Weather Statement	CAE	Burke	36 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2025 Severe Thunderstorm Warnings in Georgia, 2025 Every severe thunderstorm 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.