Patchy freezing fog reduced visibility around Charleston bridges and waterways on the morning of December 11, 2025, with temperatures at or below freezing.
Weather Conditions
The National Weather Service issued a freezing fog advisory, a rare event for Charleston County, as cold air over warmer river waters like the Wando and Cooper caused fog and black ice formation, especially on elevated roadways. Temperatures dipped into the upper 20s early that morning, leading to widespread fog by around 3 AM.
Impacts and Safety
Similar conditions the previous day caused multiple crashes, bridge closures like the Cosgrove and Don Holt, and hours-long traffic delays, with 10 collisions reported including injuries. Authorities urged drivers to slow down, avoid distractions, and plan for delays on bridges. The advisory expired by 9 AM as temperatures rose and ice melted.
TODAY: AM Patch Fog. Mostly Sunny. High 60.
THURSDAY: Mostly Sunny. High 54.
FRIDAY: Sunny Sky. High 60.
SATURDAY: Sunny Sky. High 67.
SUNDAY: Sun & Clouds. High 66.
