Columbia, South Carolina – Heavy rain is saturating South Carolina Tuesday, with flash flooding likely in parts of the Midlands through 10 p.m., especially along and south of I-20. Morning downpours in the west already raised flooding concerns, and stronger afternoon storms could worsen road conditions in populated areas including Columbia, Aiken, and Orangeburg.
According to the National Weather Service in Columbia, the first wave of rain is linked to a moisture-laden wedge boundary pushing north. The second round, driven by afternoon thunderstorms, may trigger isolated flash floods, particularly in the CSRA and southern Midlands counties. These storms are expected to build quickly and linger into the evening.
Localized flooding could close roads or overwhelm storm drains, especially in low-lying or poorly drained areas. Drivers are urged to avoid water-covered roads and monitor weather alerts throughout the day. The risk is especially high during afternoon commutes.
The threat should ease after 10 p.m., but more advisories could follow depending on overnight rainfall and soil saturation levels.
