California experiences some of the most severe fog conditions in the United States, with tule fog being particularly dangerous in the Central Valley region. This radiation fog forms when moist air near the ground cools rapidly during winter nights, creating visibility conditions that can drop to near-zero in minutes. According to the California Department of Transportation (Caltrans), fog-related accidents are most common in Fresno, Kern, Kings, Madera, Merced, San Joaquin, Stanislaus, and Tulare counties. The infamous 'fog belt' along Interstate 5 and Highway 99 has been the site of numerous multi-vehicle pileups, some involving more than 100 vehicles.
Statistical data from the California Highway Patrol reveals that fog-related crashes have a significantly higher fatality rate compared to accidents in clear conditions. Between 2018 and 2023, fog was cited as a primary contributing factor in over 2,400 injury collisions and 180 fatal crashes statewide. These accidents often result in severe injuries including traumatic brain injuries, spinal cord damage, and catastrophic injuries that require extensive medical treatment and long-term care. Understanding these statistics underscores the serious nature of fog-related accidents and the importance of pursuing full compensation for your injuries.