Alert archive / South Carolina / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 73, NWS Charleston, SC

August 13, 2026Berkeley County, Charleston County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Aug 13, 2026, 5:36 PM EDT for Berkeley County, Charleston County, South Carolina. It was in force for 54 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 13, 2026, 5:36 PM EDT (21:36 UTC)
Expired
Aug 13, 2026, 6:30 PM EDT
In force
54 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Berkeley County, SC, Charleston County, SC

The radar

The Charleston,SC radar (KCLX), 108 km from the middle of the area, began a volume at 21:35 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, 9.6 hours before the alert went out and 10 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-pSkew-T log-p diagram, Charleston AFB, SC at 12:00Z on 2026-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1565 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2026-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1565 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
1138 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 1:48 AM EDTExtreme Heat WatchCHSBeaufort, Berkeley, Charleston, Colleton, Jasper12 hr
Aug 13, 3:59 PM EDTSpecial Marine WarningCHS43 min
Aug 13, 4:39 PM EDTSevere Thunderstorm WarningCHSAllendale, Hampton, Jasper66 min
Aug 13, 4:55 PM EDTSpecial Weather StatementCHSBeaufort35 min
Aug 13, 5:07 PM EDTSevere Thunderstorm WarningCHSBeaufort, Charleston, Colleton53 min
Aug 13, 5:28 PM EDTSevere Thunderstorm WarningCHSBeaufort, Colleton, Hampton, Jasper62 min
Aug 13, 5:49 PM EDTSevere Thunderstorm WarningCHSJasper56 min
Aug 13, 5:52 PM EDTSpecial Marine WarningCHS113 min
Aug 13, 6:30 PM EDTSevere Thunderstorm WarningCHSBeaufort, Charleston, Colleton38 min
Aug 13, 6:47 PM EDTSpecial Marine WarningCHS67 min
Aug 13, 6:57 PM EDTSpecial Weather StatementCHSBeaufort33 min
Aug 13, 7:30 PM EDTFlash Flood WarningCHSDorchester80 min
Aug 13, 7:45 PM EDTSpecial Marine WarningCHS85 min
Aug 13, 3:41 PM EDTSpecial Weather StatementCHSJenkins34 min
Aug 13, 3:43 PM EDTSpecial Weather StatementCHSCandler32 min
Aug 13, 3:52 PM EDTSevere Thunderstorm WarningCHSBulloch, Candler, Evans, Tattnall53 min
Aug 13, 3:56 PM EDTSpecial Weather StatementCHSChatham34 min
Aug 13, 4:29 PM EDTSpecial Weather StatementCHSScreven31 min
Aug 13, 4:58 PM EDTSpecial Weather StatementCHSLong32 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 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.