A recent container loss incident involving the vessel Baltic Klipper near the Isle of Wight highlights the risks posed by long-period swell, which can trigger parametric rolling even in moderate sea states. Experts warn that the shipping industry often focuses on wave height while overlooking wave period, a key factor influencing vessel motion and stability. Forecast models may miss these swell conditions, creating hidden operational risks that can lead to container losses and costly disruptions. Analysts argue that improved wave forecasting, enhanced observations, and voyage-optimisation tools that account for vessel-specific motion are essential to reduce weather-related shipping incidents.
