Severe Thunderstorm Warning Issued for Aiken, Calhoun, Lexington, Orangeburg Counties SC
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The National Weather Service in Columbia has issued a Severe Thunderstorm Warning for parts of central South Carolina until 2:00 PM EDT on August 20, 2026.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Central South Carolina
- Issued
- August 20, 2026
- Issuing authority
- NWS Columbia SC
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
A Severe Thunderstorm Warning (SVR) has been issued by the National Weather Service Columbia SC. The alert is effective from August 20, 2026 at 1:13 PM EDT until August 20, 2026 at 2:00 PM EDT. Severity is Severe with Immediate urgency and Observed certainty.
Affected Areas
The warning covers Northwestern Calhoun County, Southeastern Lexington County, Northeastern Aiken County, and North central Orangeburg County in central South Carolina. Locations impacted include Gaston, Sandy Run, Swansea, North, Pelion, Woodford, Thor, Lexington County Airport At Pelion, and Peachtree Rock. This includes Interstate 26 between mile markers 125 and 135.
What You Should Do
For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Expected Conditions
At 1:13 PM EDT, a severe thunderstorm was located near Gaston, or 10 miles south of Red Bank, moving east at 25 mph. Hazards include 60 mph wind gusts and nickel size hail (0.88 inch). Expect damage to trees and powerlines.
Timeline
The alert is in effect from August 20, 2026 at 1:13 PM EDT and expires at 2:00 PM EDT the same day.
Original source: NOAA Official Notice ↗
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