An isolated severe thunderstorm developed across the Upstate of SC and caused some tree damage in Lancaster County. A weak shortwave trough aloft, moving into a region with modest instability and mid-level dry air helped developed an isolated downburst.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CAE wrote it up.
An isolated severe thunderstorm developed across the Upstate of SC and caused some tree damage in Lancaster County. A weak shortwave trough aloft, moving into a region with modest instability and mid-level dry air helped developed an isolated downburst.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Columbia, SC wrote its last area forecast discussion before the first event at Apr 22, 1:51 PM EST, 2 hours 54 minutes earlier.
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</html>The Columbia radar (KCAE), 88 km away, was scanning. The volume nearest the first event began at 21:44 UTC.
1 thunderstorm wind. Local standard time, as filed.
Lancaster County EM reports trees and power poles down via images on NWSChat along Sunset Cir near Grace Ave, including one that fell on a house.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2025Every state in 2025This day in weather historyWarnings in South Carolina, April 2025
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1250270.