Freezing Fog — Charleston, South Carolina

2025-12-10 · Charleston, South Carolina

Event narrative

Law enforcement reported 6 collisions involving 8 vehicles along Highway 7 on the Cosgrove Bridge, resulting in 2 injuries. Additionally, law enforcement reported 4 collisions involving 6 vehicles along Interstate 526 on the Don Holt Bridge, leading to no injuries.

Wider weather episode

High pressure and light winds under clear skies led to strong radiational cooling and freezing temperatures, setting up an environment for freezing dense fog that produced slick road conditions on many elevated bridges across the Charleston Metro Area during morning commute hours.

Source: NOAA Storm Events Database, event_id 1299796. Narrative written by the NWS forecast office that issued the report.