Flash Flood in Sumter County, South Carolina

Flash Flood June 13, 2025 · Sumter County, South Carolina

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Sumter Fire reported water over the roadway on Camden Highway at Valencia Drive.

The wider storm

Diurnally driven convection developed within a moist and unstable air mass characterized by CAPE values greater than 2000 J/kg with weak wind shear and precipitable water values over 2 inches and dewpoints in the lower 70s. Storms were slow moving and trained across Richland and Sumter counties resulting in flash flooding. Isolated strong storms produced severe wind damage northwest of Sumter.

Began near Dalzell (34.0197, -80.4590).

Source: NOAA Storm Events Database, event 1260986. Narratives are written by the National Weather Service forecast office that issued the report.

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