Alert archive / South Carolina / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 67, NWS Charleston, SC

August 11, 2026Beaufort County, Jasper County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Aug 11, 2026, 4:40 PM EDT for Beaufort County, Jasper County, South Carolina. It was in force for 65 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 11, 2026, 4:40 PM EDT (20:40 UTC)
Expired: Aug 11, 2026, 5:45 PM EDT
In force: 65 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Beaufort County, SC, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 34 km from the middle of the area, began a volume at 20:42 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, 8.7 hours before the alert went out and 98 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: 1604 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 1039 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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.

NWS Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 11, 2:19 PM EDT, 2 hours 21 minutes earlier.

Area forecast discussion, Aug 11, 2:19 PM EDT, 2 hours 21 minutes before

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In the hours before

Local storm report, Aug 11, 11:54 AM EDT, 4 hours 46 minutes before

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Special weather statement, Aug 11, 1:56 PM EDT, 2 hours 44 minutes before

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Special weather statement, Aug 11, 3:35 PM EDT, 1 hour 5 minutes before

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Special weather statement, Aug 11, 4:03 PM EDT, 37 minutes before

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Local storm report, Aug 11, 4:24 PM EDT, 16 minutes before

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Special weather statement, Aug 11, 4:30 PM EDT, 10 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 8:21 PM EDT	Special Marine Warning	CHS		69 min
Aug 11, 1:59 PM EDT	Heat Advisory	CHS	Beaufort, Berkeley, Charleston, Colleton, Jasper	29 hr
Aug 11, 3:35 PM EDT	Special Weather Statement	CHS	Charleston	25 min
Aug 11, 4:03 PM EDT	Special Weather Statement	CHS	Charleston	27 min
Aug 11, 4:10 PM EDT	Special Marine Warning	CHS		2 hr
Aug 11, 4:17 PM EDT	Areal Flood Advisory	CHS	Charleston, Colleton	2 hr
Aug 11, 4:30 PM EDT	Special Weather Statement	CHS	Jasper	45 min
Aug 11, 5:24 PM EDT	Special Marine Warning	CHS		75 min
Aug 11, 5:48 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	57 min
Aug 11, 6:13 PM EDT	Special Marine Warning	CHS		2 hr
Aug 10, 8:46 PM EDT	Special Weather Statement	CHS	McIntosh	44 min
Aug 11, 1:56 PM EDT	Special Weather Statement	CHS	McIntosh	49 min
Aug 11, 4:36 PM EDT	Areal Flood Advisory	CHS	Liberty, Long, McIntosh	3 hr
Aug 11, 5:22 PM EDT	Special Weather Statement	CHS	McIntosh	23 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2026 Every 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.